sailboat sailing at night lights

What is a Properly Lit Sailboat at Night? (A Guide to Safety Regulations)

Have you ever been out on the open water and seen a sailboat with its lights on at night? It’s a beautiful sight to behold.

But did you know that there are specific safety regulations in place for properly lit sailboats? In this guide, we’ll be looking at the importance of having a properly lit sailboat, what types of lights are needed, how to install them, and how to test for proper operation.

Let’s get started and learn how to stay safe on the waters!

Table of Contents

Short Answer

A properly lit sailboat at night is a boat that is equipped with the correct navigation lights, which are required by law.

These lights must be visible for two miles and should include a green light on the starboard side, a red light on the port side, and a white light aft.

Additionally, the boat must also have a white masthead light that is visible for three miles.

The masthead light should be mounted at least two meters above the hull.

What Are the Safety Regulations for Properly Lit Sailboats?

When it comes to sailing at night, safety is of the utmost importance.

Properly lit sailboats ensure that they are visible to other boats, which reduces the risk of collisions and other accidents.

In order to ensure that a sailboat is properly lit at night , there are certain safety regulations that must be followed.

First and foremost, the sailboat must have the correct lighting equipment installed and in good working order.

This includes running lights (red and green lights found at the bow and stern of the vessel), an anchor light (a white light mounted on the masthead or the bow of the vessel), a stern light (a white light placed at the stern of the vessel), and a masthead light (a white light placed at the highest point on the vessel).

The running lights, anchor light, and stern light must be visible for at least 3 miles in clear conditions.

This allows other boats on the water to easily spot the sailboat, even in the dark.

The masthead light must be visible for at least 2 miles in clear conditions.

This ensures that the sailboat is easily seen from all directions.

In addition to having the correct lighting equipment, sailboats must also be equipped with a white all-round light.

This light must be visible for at least 2 miles in clear conditions and must be mounted on the mast at least 9 meters (or 30 feet) above the waterline.

The all-round light is an important part of a sailboats lighting system as it allows other boats to easily spot the sailboat from any direction.

These are just a few of the safety regulations that must be followed when it comes to properly lit sailboats.

Following these regulations will help to ensure that a sailboat is visible to other vessels on the water and will help to reduce the risk of accidents and collisions.

It is important that all sailors understand and adhere to these regulations in order to remain safe on the water.

Types of Lights Needed for Proper Lighting

When it comes to lighting a sailboat at night, there are a few key components that must be in place in order to ensure the safety of the vessel and the crew.

The most important of these components is the correct type of lighting equipment.

This includes various running lights, anchor lights, masthead lights, and stern lights.

Running lights are the red and green lights that are mounted on the bow and stern of the vessel, and are used to show the direction of travel of the boat.

They must be visible for 3 miles in clear conditions, making it easier to spot the boat in the dark.

Anchor lights are white lights that are mounted on the masthead or the bow of the vessel, and are used to show that the boat is anchored.

They must also be visible for 3 miles in clear conditions.

The stern light is a white light placed at the stern of the vessel.

This is used to show the direction of travel of the boat and should also be visible for 3 miles in clear conditions.

Finally, the masthead light is a white light placed at the highest point on the vessel.

This light is used to help identify the boat to other vessels on the water, and must also be visible for 3 miles in clear conditions.

Having all of these lights in good working order is essential for the safety of the boat and the crew.

It is important to make sure that all lights are visible from a distance of 3 miles in clear conditions, as this will make it easier to identify the boat in the dark.

It is also important to make sure that all lights are regularly inspected and maintained in order to ensure that they are in good working order.

How to Install the Lights

Installing the lights for a properly lit sailboat at night is an essential part of staying safe while sailing.

It is important to ensure that all of the lights are in good working order and that they meet the safety regulations for visibility.

The first step is to select the right lights for your vessel.

There are two main types of lights running lights and anchor lights.

Running lights are the green and red lights found at the bow and stern of the vessel, while anchor lights are white lights mounted on the masthead or bow of the vessel.

Once the lights are selected, the next step is to install them.

Start by attaching the anchor light to the masthead or bow of the vessel.

The anchor light should be securely mounted and wired in accordance with the manufacturers instructions.

Next, attach the stern light at the stern of the vessel.

This should also be securely mounted and wired in accordance with the manufacturers instructions.

Finally, attach the running lights.

These should be mounted at the bow and stern of the vessel.

It is important to test the lights after installation to make sure they are working properly.

Make sure that the lights meet the visibility requirements of 3 miles in clear conditions, as this is the minimum distance that the lights must be visible from.

Once the lights are installed and tested, youre ready to set sail in the dark!

Importance of Properly Lit Sailboats

When it comes to sailing, safety is of the utmost importance.

This is why it is essential for all sailboats to be properly lit at night.

Having the correct lighting equipment installed and in good working order is a critical component to ensure visibility and the safety of everyone on the water.

Not only does having properly lit sailboats maintain the safety of the sailors on the boat, but it also helps to prevent collisions with other vessels.

It is much easier to spot a sailboat on the water at night when it has the correct lighting equipment, such as running lights, anchor lights, stern lights and masthead lights.

All of these lights should be visible for at least 3 miles in clear conditions, making it much easier to spot a sailboat on the water.

Additionally, having properly lit sailboats at night is also important for law enforcement and marine patrol officers.

It makes it easier for them to identify and inspect boats, ensuring that all safety regulations are being followed.

This helps to keep the waterways safe for all boaters.

For these reasons, it is important for all sailboats to be properly lit at night.

By having the right lighting equipment installed and in good working order, it can help to maintain the safety of everyone on the water, as well as help to prevent collisions with other vessels.

It also makes it easier for law enforcement and marine patrol officers to identify and inspect boats, helping to keep the waterways safe for all boaters.

Different Types of Lights and Their Functions

When it comes to lighting a sailboat at night, there are several different types of lights that must be installed and in good working order in order to ensure the safety of the vessel and its occupants.

The most common types of lights used on sailboats are running lights, anchor lights, stern lights, and masthead lights.

Running lights are the green and red lights found at the bow and stern of the vessel.

These lights are typically used to signal the direction of the boats movement, and must be visible for 3 miles in clear conditions.

The green light is typically placed on the port side (left side) of the boat, and the red light is placed on the starboard side (right side).

Anchor lights are white lights mounted on the masthead or bow of the vessel.

They are used to indicate that the boat is at anchor, and must also be visible for 3 miles in clear conditions.

Stern lights are white lights placed at the stern of the vessel.

These lights indicate the boats direction of travel, and must be visible for 2 miles in clear conditions.

The masthead light is a white light placed at the highest point on the vessel.

This light is typically used in conjunction with the stern light to indicate the direction of travel, and must be visible for 2 miles in clear conditions.

In addition to these lights, boats may also be fitted with a variety of other lights such as tricolor lights, sidelights, all-round lights, and deck lights.

These lights are typically used to indicate the presence of the vessel in low-visibility conditions, and must be visible for 2 miles in clear conditions.

It is important to ensure that all lights on a sailboat are in good working order and visible from a distance in order to make the vessel visible to other boats and comply with safety regulations.

A properly lit sailboat at night is one that has the correct lighting equipment installed and in good working order.

Benefits of Properly Lit Sailboats

Having a properly lit sailboat at night is essential for staying safe on the water.

With the right lighting equipment installed and in good working order, you can be easily seen by other vessels and prevent possible collisions.

Additionally, having the right lights on your sailboat can help other boaters determine your vessels size, direction, speed, and even your intentions on the water.

Having the right lights can also give you a sense of security while youre out at night.

Knowing that youre visible to other vessels reassures you that youll be able to be seen and spotted if you need assistance or if theres an emergency.

When youre out on the water at night, having a properly lit sailboat can also make navigation easier.

By having the correct lighting equipment installed, youll be able to easily spot buoys, markers, and other vessels, making it easier for you to stay on course and reach your destination in a timely manner.

Having the proper lights also helps to keep your sailboat in compliance with safety regulations.

If youre stopped by the coast guard or other law enforcement, having the right lights can help to avoid any potential fines or penalties.

Overall, having a properly lit sailboat at night is essential for staying safe on the water.

Not only does it make it easier for other vessels to spot you, but it can also help with navigation and make sure that youre in compliance with safety regulations.

Properly lit sailboats can also give you a sense of security and peace of mind, knowing that youre visible to other vessels in the area.

How to Test Lights for Proper Operation

Testing lights on a sailboat at night is an important part of ensuring that the craft is properly lit and visible to other vessels.

It is essential for safety, as well as compliance with regulations set by the United States Coast Guard.

Before each voyage, it is important to inspect all of the lights and make sure that they are in proper working order.

The first step to testing lights is to turn them on and check that they are functioning correctly.

It is important to make sure that all of the required lights are present and that they are bright enough to be seen in clear conditions for up to 3 miles away.

The running lights should be a green light at the bow and a red light at the stern, while the anchor light should be a white light mounted on the masthead or the bow of the vessel.

The stern light should be a white light placed at the stern, and the masthead light should be a white light placed at the highest point on the vessel.

Another important step in testing lights is to make sure that they are not obstructed in any way.

This includes checking for any wires, cables, or other objects that could block the lights from being visible.

This is especially important for the masthead light, as it needs to be accessible in order to be seen from a distance.

It is also important to check the wiring of the lights to make sure that they are securely connected and not corroded or damaged.

Finally, it is important to check the bulbs of the lights to make sure that they are all functioning correctly.

It is important to check the wattage of the bulbs to make sure that they are bright enough to meet the standards set by the United States Coast Guard.

It is also important to make sure that the bulbs are not cracked or damaged in any way, as this could affect their visibility.

Following the steps outlined above will help to ensure that all of the lights are in proper working order and can be seen from a distance in clear conditions.

This is important for safety, as well as compliance with regulations set by the United States Coast Guard.

Final Thoughts

Having the correct lights installed and in proper working order on your sailboat is essential for safety and visibility on the water at night.

Knowing what type of lights you need, how to install them, and how to test them for proper operation is key.

While it may seem daunting to install and maintain all these lights, the benefits of having a properly lit sailboat at night far outweigh the effort.

So take the time to review safety regulations, and make sure you have the right lights installed and operating correctly to ensure a safe and enjoyable sailing experience.

James Frami

At the age of 15, he and four other friends from his neighborhood constructed their first boat. He has been sailing for almost 30 years and has a wealth of knowledge that he wants to share with others.

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Boat Lights at Night: A Guide to Safe Sailing in the Dark

• 1 Safety Considerations
• 2 Necessary Lights for Boating at Night
• 3 Understanding the Importance of Visibility
• 4 Maintenance and Troubleshooting
• 5 Conclusion

The summer months of the year bring hours of sunshine, giving boaters plenty of time to explore during the day. When the sun sets, safety becomes a priority for anyone operating a boat in the dark. It’s crucial to know which boat lights must be on and how to stay visible and safe while sailing at night.

We’ll provide all the essential information you need to make sailing at night a safer and more enjoyable experience. You’ll get an overview of the different types of boat lights available and tips for staying safe and visible while sailing in the dark.

Safety Considerations

Safety should always be the top priority of any sailor, regardless of the time of day. When boating at night, you must know the rules and regulations in your designated area and familiarize yourself with the navigation equipment on most vessels. Understanding these regulations and investing in additional equipment can make a big difference in ensuring a safe voyage.

It is essential to understand the local laws and regulations regarding boating at night and what lighting you need for each vessel. Boat operators should also be aware of their speed limits, acceptable waterway passage areas, and any potentially hazardous areas they should avoid.

In addition to staying knowledgeable about local regulations, your navigation equipment should be up-to-date and functioning appropriately. Marine vessels typically come equipped with depth sounders and radar systems, but investing in additional accessories can further increase visibility during nighttime sailing. This equipment can include GPS chart plotters or portable AIS receivers, which can help navigate safer routes and alert boat operators of nearby vessels.

Necessary Lights for Boating at Night

Depending on illuminated waters after dark, boat light illumination is necessary for all recreational vessels. Boats must display three main types of lights, including bow, stern, and riding lights.

The bow light indicates to other boats where your vessel’s direction is facing, appearing as a green light on the starboard side and red on the port side when looking forward from the rear. It is important to note that this light should only be visible from directly ahead or nearly directly ahead of the vessel itself. It must have a wide enough angle range for optimal visibility while ensuring it is not too bright or blinding for other boats passing by.

The stern light works similarly to a bow light, except it shines from the back end of a vessel, making it easier for oncoming boats to identify your direction. Per maritime law, this light should also appear white but visible from behind only, ensuring no unnecessary glare toward other boats or obstructions ahead.

Riding lights, or masthead lights, provide additional visibility for your vessel. These lights indicate the vessel’s length according to measurements determined by maritime law enforcement officers. This type of light usually appears as white but occasionally has a blue tint depending on individual regulation standards in your area.

Understanding the Importance of Visibility

When selecting boat lights, it’s crucial to consider their wattage output or bulb type to ensure optimal visibility in dark environments.

Colored boat lights are often found on vessels and can come in white, blue, or red colors, each serving a specific purpose based on the laws at sea. White lights generally have a stronger output compared to other colors. Blue lights are more effective underwater, and red lights can mark specific areas within narrow channels, among other uses.

In addition to colored boat lights, reflective materials like tape can upgrade the common areas on ships, such as rails or posts. These materials help draw attention to the vessel’s proximity to other nearby ships and enhance safety.

Maintenance and Troubleshooting

Proper maintenance of boat light systems is crucial to keep operating costs low, especially when dealing with high-wattage fixtures commonly found in the marine environment. Regularly maintaining these systems throughout their lifespan is essential.

One critical maintenance aspect is storing boat lights properly during off-season storage periods. It is crucial to ensure that each unit remains dry. This storage is necessary to preserve their longevity and ensure their functionality when powered back on. Moisture buildup can lead to short circuits, malfunctions, and damage to the light’s components.

You should follow basic troubleshooting methods as part of routine maintenance. This maintenance includes cleaning off any corrosion and regularly checking bulb connections. These steps should become a natural course for anyone embarking on nighttime sailings or exploring uncharted territories.

Proper illumination is crucial for safe and legal boating at night. All boats need to have adequate lighting regardless of their size and capabilities. Following maritime laws and regulations related to navigational requirements and using the correct boat light format enhances safety for everyone on maritime travels. The mastery of navigation skills and adherence to these standards will continue to uphold the honor and legacy of future generations.

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• Yachting World
• Digital Edition

Night sailing – the essential guide for offshore cruisers

• April 19, 2017

Chris Tibbs on how to prepare for and enjoy offshore night watches

With a full moon and following wind, night sailing can be one of the great pleasures to be had when passagemaking; but on a dark night in a gale it can be very stressful and leave you longing for dawn.

Whether you are crossing the Channel or crossing an ocean, sailing in the dark is something that everyone experiences at some stage in their sailing career and with some simple preparations you can make it easier and safer.

Have you ever been asked by a non-sailor: “What do you do out on the ocean at night?” It often comes as a surprise to find that sailing has always been a 24-hour pastime.

Traditionally, passages were made at night and planned so that landfall was at dawn to assist with identifying the lights and confirming the yacht’s position. Then the skipper could enter port safely during daylight.

With GPS we now rather underestimate the usefulness of lights for position fixing and, as more yachts are fitted with AIS, crossing shipping lanes has become less difficult now that you are not solely reliant on identifying each ship’s navigation lights.

Of course, not all vessels have AIS!

How to prepare for long passages

Generally night sailing falls into one of two categories: the first is a one-off night sail, such as the start of a summer cruise to get the boat to your cruising ground, or perhaps a RORC or JOG cross-Channel race. The second is a long passage where there will be a number of days between the start and finish with consecutive night sails.

For me there should be little difference when setting up the boat although there will be a difference in watchkeeping.

Whether cruising or racing, the crew spending consecutive nights at sea requires a more rigid watch system – covering the full 24 hours – than the one-night crew. But the principles of watch-keeping do also apply to single nights at sea.

One of my pet hates used to be the Friday night cross-Channel races. Crews would arrive all enthusiastic after a hard week at work, but by 0200 tiredness had set in and we would see ourselves slowly working our way to the back of the fleet with only one or two awake enough to be competitive.

Most boats are logical in their layout and it is always a pleasure when a new but experienced crew comes on board as they will rarely need telling twice which rope is which.

Yes it is good to label clutches but soon after joining everyone should know by feel and position which rope is which.

Close your eyes and feel – size becomes very apparent and the covers will feel different. Hold the spinnaker halyard in one hand and the topping lift in the other; feel the different sizes and textures.

It is always good to keep the same ropes in the same position so at night in the dark, when the label is obscured anyway, it is easy to pick up the right one.

Humans are not particularly good at seeing at night and it takes a long time to get full night vision.

The eyes are incredible complex and there are three phases in adapting to the dark.

Initially our pupils dilate to allow as much light in as possible; this may take from a few seconds to a minute to happen.

The next phase takes place in the cone cells of the eye. In the absence of light we get chemical changes in the cell and it can take ten minutes for the cone cells to adapt to the dark.

Lastly we have rod cells which are responsible for black and white vision and these contain rhodopsin which is reactivated in the absence of light. This will take several hours to fully adapt to the dark.

Although we are all different, as a rough guide it takes about ten minutes to get most of our night vision, which gets slowly better over the following few hours. This can be put back to zero very quickly by the use of bright lights.

How to use lights on board at night

All crew members should have a flashlight and it’s worth keeping a powerful spotlight on deck for rig checks and emergencies.

When sail trimming try and use as weak a flashlight as possible and also warn the helmsman and lookouts before using it.

We have had great success in painting the lenses of flashlights with red nail varnish: the red light is much kinder on the eyes and nail varnish is more readily available than red flashlights.

Red lights are also crucial below. Some yachts will have split lights with red to be used at night. In the past, I have used stick-on red film from a photographic shop.

Generally we cover half of the lights red when cruising, but for long offshore passages we will cover all the lights with red film to avoid the wrong switch being used.

It would be nice to have two complete circuits to turn off the white lights completely, however ten minutes with a pair of scissors and all lights are covered.

Head torches leave both hands free, but I actually hate them on deck when sailing. If spoken to it is the natural reaction to turn and look at the person speaking, instantly ruining their night vision. Some head torches will have red bulbs but any bulb shining straight into your eye is damaging for your night vision.

Use light sparingly as the less you use, the less you tend to need. With the latest instruments and multifunction displays you can control the brightness of the image: keeping it to a minimum helps night vision and also consumes less power.

I am told that in training, some Mini Transat and Figaro sailors will practice sailing blindfold.

Night sailing tips for cruisers

I have been involved with the ARC for many years and it seems that most crews will routinely drop spinnakers and reduce sail for the night. All very prudent but nights are long in the tropics – approaching 12 hours of darkness.

I am not one for fixed rules, so I would rather see a boat set up for simple sail handling and allow conditions to dictate the sail plan. This also depends on the number of crew on board and the watch-keeping regime.

It makes sense to mark halyards and control ropes. I like to sew in a whipping of a contrasting colour onto the line marking the correct position just out of the clutch. This can be felt as well as seen and is particularly useful when reefing.

I also like to mark halyards at the maximum hoist to avoid anyone getting too enthusiastic and winding the splice or knot into the sheave. This is something racing boats have done for years and for cruisers would be useful for both day and night sailing.

Luminous draft stripes can be added to sails to help with sail shape and small amounts of reflective tape can also be stuck around the boat to help see and identify equipment.

On my boat the wheel is marked with a turk’s head knot to feel the centre point, to which we have also added some reflective tape to make it visible in low light.

If you make sail changing and trimming simple you can usually do it with just the ambient light and a small flashlight. The decklight knocks out any visibility forward. A tricolour light should light up the windex and if conditions are marginal, a steaming light can be used to check spinnaker trim, although any lights forward spoil night vision and, of course, a steaming light indicates to others that you are motoring not sailing.

When planning a voyage, make life easier and safer by maximising your moonlight hours: sailing under a full moon and clear sky is as easy as sailing during the day.

Crew preparation

Sailing is no fun when tired and hungry. There seems to be a tendency on cruising yachts to run short-handed with single-person watches. Of course, single-handed sailors circle the globe in ever faster yachts, but the average cruising yacht is not really very well set up for single-handed sailing.

Hot drinks and snacks at night are essential.

The typical cruising yacht has a number of roles to perform, so the ideal deck layout in terms of sailing efficiency will be compromised by the requirements of the cabin space below.

This tends to encourage slow sailing: if it is hard to single-handedly reduce sail, it makes sense to automatically reef at night so you do not have to call anyone to help.

Two or three hours is long enough to be up on your own and with shorter watch times, there is the opportunity to change sail during a change of watch when there are two people on deck.

When my wife and I are double-handed passagemaking, we stick to three-hour watches, as this is as long as I can keep concentration. But it is tiring. For ocean crossings we tend to have an extra person to help.

Night raids and the importance of the midnight snack

When racing you have to push 24 hours a day to be competitive, although you can be a bit more conservative at night to help preserve the boat and crew.

When I skippered Concert in the BT Global Challenge, we would occasionally do a ‘night raid’. This involved handing out a few extra treats for dinner then, putting the best drivers on the helm, we would really push through the hours of darkness. This usually paid off with a few miles gained.

I would be happy to cross an ocean on freeze-dried food but I think I am in a minority! Food and drink is important for fuel and also for enjoyment.

Food at night is particularly important for energy and well-being. Sealed personal drink flasks stay hot for a couple of hours, the biggest danger being burning your mouth in the first hour. Snacks are also good on night watches: our bodies are used to sleeping at night and a snack helps to keep us going.

One trick that I like is a Cup-a-Soup in a wide-mouthed flask with a few teaspoons of couscous added. Put the lid on and leave it five minutes and you have a tasty and filling savoury snack!

How to be a watchkeeper

Watchkeepers should not take the responsibility lightly. You need an experienced watchkeeper crossing the Channel due to the level of shipping and navigation required on the passage. Further offshore a less experienced watchkeeper has more time to call the skipper.

Why longer passages are easier

Everyone on board has to get enough sleep. It may be possible, physically, to go 24 hours without sleep, but decision-making suffers and it is easy to make mistakes.

I prefer, if possible, to have at least two people on a watch, this avoids having to call extra crew for small sail changes or manoeuvres. It does also mean that when you are off watch, your sleep is not disturbed. With two on watch, three or four-hour watches pass quickly, split between steering, lookout, and navigation.

Racing is a bit different as there is generally a bigger crew. I am not a fan of everyone on the rail all night, and rotating the crew so everyone gets some sleep is important.

For longer races like the Fastnet I would have a rigid watch system so everyone gets some good sleep. If anything goes wrong then it always seems to happen at about 0400 when people are at their lowest ebb.

I would also get into the watch system early, probably before Portland, to get into a rhythm. Our bodies are very complex and need time to adjust; a short passage of two or three nights can be more tiring than a transatlantic.

Personally I find it takes about three days to get settled. I then get one really good deep sleep and I am fine for the rest of the voyage. I tend to find short passages – anything less than three days – more tiring, which is why I prefer a bigger crew for sailing a few hundred miles than I do for sailing longer passages.

7 Top tips for Safety at  night

• Prepare your boat: mark all halyards and brief crew on cockpit layout • Be patient with night vision: it takes three hours to fully adapt and moments to ruin • Red lights: either use red see-through film, red light bulbs or even nail polish • Get into watches early on the voyage: the body needs time to adjust to a new rhythm • Good food is especially important at night when the body is conditioned to be sleeping • Think safety and preparation: don’t run a one-person watch if the boat’s not easy to sail solo • Avoid getting overtired: concentration and decision making is essential at sea

Chris Tibbs is a meteorologist and weather router, professional sailor and navigator, as well as an ARC safety inspector. He is currently doing a circumnavigation with his wife, Helen, on their own boat, Taistealai.

Yachting Monthly

• Digital edition

Night sailing tips for first timers

• Toby Heppell
• September 4, 2020

Cruising after dark doesn't need to be stressful. Toby Heppell shares his tops tips for night sailing

Sailing at night can be a magical experience. Credit: Paul Wyeth

Do you find night sailing stressful? It needn’t be if you follow a few basic rules and plan ahead.

Stay on deck while night sailing

As always with pilotage, the right place to be is on deck, not least to avoid uncharted objects such as other craft, mooring buoys and fishing pot markers.

Most pilotage errors occur at night rather than in the day so a thorough pilotage plan is essential.

Even with a navigation station filled with electronic aids it is still possible to become disorientated while trying to reconcile the view on deck with that on the chart.

Where possible, the right place to be is on deck. Credit: Paul Wyeth

You need a pilotage plan.

The most important principle is this: if you know the position of the yacht and you are armed with a chart (electronic or paper) and a compass, you know the range and bearing to the next mark.

This means that when you reach a known position, such as a navigation buoy, you know where to head to find the next one.

Simple, except that a surprising number of navigators waste time scanning the lights ahead with no plan to find the one they want.

Fishing pots

Unpredictable and unlit, these are the biggest danger at night.

Avoiding them is largely a matter of common sense.

Sometimes they are laid in deep water, but mostly they lurk in less than 50m.

Fishing pots, hard enough to spot in the daylight, become all but invisible at night

Avoid shallows if you can, especially near fishing harbours, and inside passages around headlands, even if you are confident of your position thanks to radar and plotter.

Even if you know where you are, there’s still the same risk of the engine stopping with a crunch, or finding yourself moored by the rudder or prop in a strong tide.

Light pollution

Light pollution is a well-known source of navigation stress, particularly when looking to enter an unfamiliar harbour after dark.

If it has been a while since you have done this, it is well worth returning to your own harbour after dark and noting the different complexion the various landmarks take on when not visible to the naked eye.

A large, unlit buoy may be sited just in front of a particularly well-lit hotel rendering it difficult to spot.

Another feature of light pollution (but of sailing at night more generally too) is the reduction in our ability to judge distances.

This is particularly acute when coming into harbour.

A navigation buoy’s light may well get lost in the background of a sea of lights when, during the day it would be clear and obvious the nav buoy was some way offshore.

Night vision

The sensitivity of our eyes increases the longer they are in the dark and it can take many minutes for maximum sensitivity to be acquired, and the improvement is dramatic.

Unfortunately it can be lost in a few seconds of exposure to bright lights.

Eyes have cones that are used for colour vision in daylight, and more sensitive rods that come into their own at night.

The rods are not sensitive to red light and this means that if you switch to red illumination your eyes can continue to adapt while you move around the boat.

The bad news for those of pensionable age is that your eyes will only be about a third as sensitive to low light as in your youth.

Is red light at night always best?

Binoculars will boost illumination by about 50 times and go a long way to redressing the balance.

However, it still pays to have your youngest crew on lookout.

It is worth noting too, that in this high-tech age, our cockpits are often filled with screens all giving off light.

Most of these screens can be dimmed or put into night mode, but sailing in the dark can be such a calm experience that the harsh light of screens can detract.

Keep your electronics on and functioning and use as appropriate.

If they are on and lit up in the cockpit they tend to draw the eye and can have the effect of making you less aware of that which is going on around you.

Poorly lit craft

Inshore, yachts can be hard to spot.

Coming into places like Southampton, Portsmouth or any other significant port with strong background lighting and a tight channel for leisure craft you are likely to be up against a significant confusion of lights.

Yachts are especially awkward if they opt for a tricolour at the masthead instead of proper running lights in close quarters.

You are looking ahead for trouble, not up in the sky!

Tricolours are great on passage though, increasing the likelihood of being spotted and minimising power drain – remember, do not use your tricolour when under power.

Fishing boats’ navigation lights are often made hard to see thanks to a bright deck light to enable the crew to work on deck.

Many larger ships are well lit up at night making them easier to spot. Credit: Colin Work

Watch them closely and expect erratic course changes.

Try to give them plenty of space to stay safe.

Around the UK other than the decklights making it hard to discern their heading from a distance, fishing craft should not cause too much worry.

But, you will want to avoid ending up astern of them in case they are trawling, so do take plenty of time to discern their direction of travel.

In some parts of the world fishing craft of various sizes do sometimes operate without proper lighting, so if you are entering a busy seaport always take it slowly.

Cruise ships and ferries are invariably lit up like Christmas trees.

It can be hard to pick out the red and green amongst the plethora of other lights onboard, so take time to work out what they’re up to and consult AIS if you have it.

Given their size, if you are close to shore even without seeing their nav lights it is usually fairly easy to make a decent guess at their bearing relative to you by glancing at your chart to get a sense of the main nav channels.

Safety on deck while night sailing

For the most part you will have your own rules about when lifejackets go on, whether that be worn the whole time, when the windstrength is above ‘x’ knots etc.

The strong recommendation is to always wear a lifejacket when on deck after nightfall, and this is sensible.

Some choose not to in calm weather and if they are in the cockpit.

As ever, what you decide will be between you and your crew.

Wearing a lifejacket when sailing after dark is advisable

For my part I would strongly recommend a lifejacket at all times after dark.

Clipping on via your harness is also strongly recommended.

If you are sailing a long passage at night then do be aware of your harness clip scraping along the deck if you are moving around – it’s a very irritating noise for those trying to get some kip below.

It’s not always easy to force discipline on yourself, but it really does make sense to call on your crew if you need to go up on deck for any sort of sail adjustment.

Safety is not about buying things.

It is about an attitude of mind.

We must constantly be on the lookout for trouble at night so that we can forestall it, just as we do in the daytime.

If you are setting out on a passage that may well extend into the night, it is worth considering what food you intend to take.

There is a lot to be said for preparing an evening meal before set off.

Something like a pre-made stew can be easily heated and give you a boost to cover the last miles.

It can also help you warm up on deck or make for a hearty meal once you are tied up.

Have snacks and hot drinks easily to hand

Whatever you choose, make plenty of it, that way you have enough to get you through the night, or you can have a bit to keep you going but still have a meal left when you arrive at your destination.

Hot drinks are axiomatic.

Boiling a kettle and having somewhere safe to place a mug while you make an instant coffee has to be easy.

If it isn’t and you are reduced to pre-heating thermos flasks, there is something wrong with your boat or your arrangements.

Keep the drinks coming.

They maintain morale and give people something to do.

Effect on weather

All air usually cools at night, even over the sea.

This will be more obvious when it has been a sunny day not far from land.

The result is that there are fewer gusts and a decrease in the average wind strength as the thermally enhanced breeze disappears.

On a night with low-lying cloud or hill fog, some lighthouses will not be visible.

Note the height of the lantern from the chart and be ready for the occasional disappointment.

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Halos around the moon can be really obvious at night.

A big one is often a sign of an approaching front.

If the wind is light, think about starting the engine and keeping up boat speed.

In conditions when the air is moist, a degree or so of cooling after dark might be just enough to shut down poor-to- moderate visibility into mist or even fog.

Distant lightning is more easily seen at night, so don’t be too alarmed if you see it flashing around the horizon.

Sailing and sail handling while night sailing

Once darkness falls, moving around on deck should be reduced and so it makes sense to have out sails that are well within the conditions at the time.

Many skippers like to shorten sail before dark, regardless of conditions, so as to minimise the chance of having to handle sails at night.

However, you should still be willing and able to change sails, or take in or let out reefs, if necessary, particularly if you are on a long passage.

It is a very good idea to mark your halyards so that you can roughly get them in the right place for reefs etc.

Some skippers like to shorten sails as night falls to minimise the chance of sail handling. Credit: Graham Snook/YM

You should also have a working set of deck lights, so you can illuminate everything when doing big jobs.

If you are not far from your final destination and daylight is disappearing, it might be worth switching the engine on and getting sails down and tidy before the dark really takes hold.

But if you’re confident in your passage plan then this is far, far from crucial.

Reducing sail, however, helps with your own ability to see and be seen.

In busy areas many sailors like to have quite a bit of the headsail rolled away as this improves visibility looking forward – a good idea for busy ports in daylight too.

At the beginning of the night, the skipper should make sure everyone understands what adjustments can be made unsupervised by those on deck and when more crew should be called up to assist.

This may vary, depending on the crew’s experience.

Intuitive sailing

There are additional strips you can get added to sails that glow at night to allow you to properly set them at night, but this is really only necessary for racers and those looking to make very long night passages.

In truth, there is usually enough light to get some decent sense of how your sails are set, and if you have reduced sail before night falls, then the consequences of getting things wrong is just a slowing of pace.

Having a torch handy to check trim and telltales is a real help.

Toby Heppell got his first boat aged four and grew up sailing on the East Coast. He has been a sailing journalist for over 15 years. Credit: Richard Langdon

Though some are tempted to switch on the motor once dark falls, sailing in the dark is a really fun and tranquil experience and can improve your sailing skills during the day.

Without the ability to see gusts approaching on the water, your sail trim is going to be far more reactive than it might otherwise be.

Feel becomes key when sailing at night.

Sailing by feel is something of a specialism for blind sailors.

Lucy Hodges, Blind Sailing World Champion, once offered me this advice: ‘A key area for me when sailing are the hairs on the back of my neck. I always make sure that my neck is exposed. With a bit of practice you may be surprised how quickly you can lean to feel changes in wind pressure and direction.’

The key to sailing by feel, is using all of your senses.

Feeling the roll of a boat is essential, if you feel the boat is starting to heel, and if the hairs on your neck have not changed, the wind might not have altered and you probably want to adjust course slightly.

If the boat begins to heel and the hairs on your neck feel different, the wind may have increased so you might adjust trim.

Of course with visual inputs too, we do not need to sail entirely on feel when night falls, but it does stand as a great example of how different and rewarding sailing at night can be.

It can really help you feel more in tune with your boat.

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• How to sail at night

Captains are often asked if it's possible to sail at night. In the vast majority of cases, the answer is yes, unless you are just starting out. You just need to know the specifics of night sailing — the rules of boat lighting, beacon signals, have navigation and nautical charts handy, and most importantly, follow basic safety rules on board. So, do you know what night sailing entails?

You can't do it without the correct lights

While on land, lights are primarily there to help us see, at sea it's the other way around. All boats must be properly lit for other vessels to see. And, a boat doesn't work like a car either, where we shine our headlights on the road ahead to see what's in front of us. At sea we rely on navigation, nautical charts, lighthouses and the captain's knowledge.

Basic boat lights include running lights, steaming lights and anchor lights. There are clearly defined and standardized rules for lighting a ship  under sail at night . So the question of how to light a yacht at night has a very simple answer. Running lights, or side lights, show other vessels where your port and starboard sides are, with red indicating port and green starboard, and you must also have a white stern light on.

Lighting the yacht at night is very important because, unlike during the day, the helmsman cannot judge the distance and direction  of other boats by sight. Running lights make the position and direction of the surrounding vessels visible, as well as their approximate distance, and helps to avoid possible collisions. Radar is also highly practical in this respect, as it shows the size and distance of the vessel.

However, when sailing there can be situations where the sails need to be lowered, and with that, the lighting also needs to be changed. If travelling under motor power , a steaming light  (masthead light)  must be turned on , which shines at the same angle as the side lights. When a sailboat is not under sail, it has to abide by the rules set out for power boats by COLREG (The International Rules for Preventing Collisions at Sea).

Lighting regulations when at anchor are again different. When at anchor at sea , only the anchor light should be on . According to the regulations this could be either a 360-degree white light atop the mast, or a light suspended from the boom, above the foredeck or on a furled genoa. If the boat is moored in port, the light is not normally used.

Navigation, GPS and maps

Nowadays, GPS and navigation aids integrated into the boat or that work as mobile apps are commonly used to determine the position of the boat. Modern technology is very accurate and reliable, but it is still worth understanding, reading and checking your position on  paper nautical charts . After all, almost any skipper will tell you that their GPS or navigation system has at some point told them they were on land, even when tens or hundreds of metres from shore.

Thanks to nautical charts, you will not only know of possible danger spots, but also lighthouses , enabling you to easily and accurately determine your position with the help of a compass. Each lighthouse is different, being lit and flashing in a unique way. A nautical chart will tell you how to identify a lighthouse by the number of flashes, their frequency and the colour of the light. To determine your exact position, you’ll then need two lighthouses in sight that serve as reference points for each other.

YACHTING.COM TIP: Lighthouses are not only practical, but they are often buildings with impressive architecture that are well worth stopping off at. Take a look at  15 lighthouses you must visit .

Safety is paramount when sailing at night

Even during the day, there are clear rules regarding the movement of the crew on board. Basically, the crew should not stand unless they are engaged in manoeuvres. In all other cases, they should be sitting on benches, at the side of the boat when heeling, or in the cabin. Apart from the fact that a standing crew member could obstruct the helmsman's view, it also poses a greater risk of falling overboard . If you're interested in getting to know this subject in more detail, check out our article Sailing Etiquette A to Z .

At night, the rules are even stricter to ensure the crew remain as safe as possible and avoid damaging the yacht. If a crew member is on deck at night while sailing, they should wear a lifejacket  and ideally be attached to the boat with a lifebelt or harness.

Except for really experienced seafarers, the rule of thumb is that there should be at least  two people on board when sailing at night. And the captain should schedule shifts so that there are always two  rested crew members on board. After all, you need to be doubly vigilant when sailing at night, and staying awake all night is certainly not conducive to alertness — especially when manoeuvring  or entering port. For the same reasons alcohol is prohibited when night sailing. While during the day, crew members other than the helmsman can toast Neptune or have one glass of wine or beer, drinking alcohol is not permitted during a voyage at night. By all means celebrate a successful journey upon arrival in port at a local tavern, but it definitely pays to keep a clear head at sea.

Specifics of night sailing and boat handling

Steering and controlling the boat  is not particularly different during the day and at night. There are just a few nuances to make sailing that bit smoother. If you're on a vessel you know well, that’s one thing, but if you're on a charter boat , it's worth marking the sheets and other lines so that you know your way around in the dark.

Sailing at night, it is also important to assess  the weather conditions well. What you would normally do during the day can be significantly more challenging at night and requires a more careful assessment of weather conditions and weather patterns. It is always better to choose smaller sails and if you have even the slightest doubt about anything, postpone the trip. 

When  entering a harbour  or sailing close to shore, be doubly cautious. There are several risk factors. During the day, the surrounding boats, the rocks and the potential hazards on the surface and below are visible. At night you have to rely on navigation, charts and lighting. When entering the harbour, charts and GPS can provide you many clues but lights can cause issues. For example, you might get dazzled by the light from the shore, the anchor lights of other boats are easily confused with the lights on land, and, last but not least, you may encounter poorly lit fishing boats. However, if you keep in mind all of these potential risks, you will arrive safely in the harbour.

The magic of night sailing

When compared to sailing during the day, night sailing places more demands on the captain's experience and knowledge of sailing regulations. But it is also a truly romantic experience. Millions of stars glistening in the night sky and the waves sparkling in the moonlight. If you're lucky, sailing out of the mist from land on a clear night with a near full moon, it will seem almost like daylight.

If you're serious about sailing and steering your boat, there are other benefits to night sailing. Navigating at night sharpens the senses and enhances the sailing experience as well as your experience of the sea itself. It truly gives a whole new meaning to sailing. But if all you want is to just enjoy yourself, night sailing is one of the most romantic experiences you can have. Check out our article on how to enjoy romance on board a yacht charter .   

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Denisa Kliner Nguyenová

Faq how to manage a night sailing.