{"id":36645,"date":"2026-11-09T13:00:40","date_gmt":"2026-11-09T13:00:40","guid":{"rendered":"https:\/\/www.oceanautic.es\/?p=36645"},"modified":"2026-11-09T13:00:41","modified_gmt":"2026-11-09T13:00:41","slug":"navigation-lights","status":"publish","type":"post","link":"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/","title":{"rendered":"What navigation lights does a small boat need at night?"},"content":{"rendered":"<p>From sunset to sunrise, and whenever visibility is poor, a recreational boat must switch on its <strong>navigation lights<\/strong>. They tell other boats what kind of vessel you are, which way you are heading and whether you are at anchor. In winter on the Costa del Sol it gets dark around six in the evening, so an afternoon trip almost always ends with the lights on.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#What_navigation_lights_does_a_small_boat_need\" >What navigation lights does a small boat need?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Navigation_lights_by_type_of_boat\" >Navigation lights by type of boat<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Motorboat_under_12_metres\" >Motorboat under 12 metres<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Sailing_boat_under_sail\" >Sailing boat under sail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Sailing_boat_under_engine\" >Sailing boat under engine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Boat_at_anchor\" >Boat at anchor<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Reading_another_boats_navigation_lights\" >Reading another boat&#8217;s navigation lights<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Which_licence_you_need_to_go_out_at_night\" >Which licence you need to go out at night<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Frequently_asked_questions\" >Frequently asked questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#When_must_navigation_lights_be_switched_on\" >When must navigation lights be switched on?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#What_colour_is_the_starboard_light\" >What colour is the starboard light?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#Does_a_sailing_boat_show_a_masthead_light\" >Does a sailing boat show a masthead light?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-lights\/#What_light_does_a_boat_at_anchor_show\" >What light does a boat at anchor show?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_navigation_lights_does_a_small_boat_need\"><\/span>What navigation lights does a small boat need?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A power-driven recreational boat under 50 metres shows a white masthead light forward, a green sidelight to starboard, a red sidelight to port and a white sternlight. If it is under 12 metres, it may replace the masthead light and sternlight with a single all-round white light.<\/p>\n<p>These rules come from the International Regulations for Preventing Collisions at Sea (COLREGs, known in Spain as RIPA), which apply to a small boat just as they do to a cargo ship. Each light can only be seen from a set sector:<\/p>\n<table>\n<thead>\n<tr>\n<th>Light<\/th>\n<th>Colour<\/th>\n<th>Visible sector<\/th>\n<th>Minimum range (boat under 12 m)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Masthead<\/td>\n<td>White<\/td>\n<td>225\u00b0, from dead ahead to 22.5\u00b0 abaft the beam on each side<\/td>\n<td>2 miles<\/td>\n<\/tr>\n<tr>\n<td>Starboard sidelight<\/td>\n<td>Green<\/td>\n<td>112.5\u00b0, from dead ahead to 22.5\u00b0 abaft the beam, starboard side<\/td>\n<td>1 mile<\/td>\n<\/tr>\n<tr>\n<td>Port sidelight<\/td>\n<td>Red<\/td>\n<td>112.5\u00b0, from dead ahead to 22.5\u00b0 abaft the beam, port side<\/td>\n<td>1 mile<\/td>\n<\/tr>\n<tr>\n<td>Sternlight<\/td>\n<td>White<\/td>\n<td>135\u00b0 astern<\/td>\n<td>2 miles<\/td>\n<\/tr>\n<tr>\n<td>All-round (anchor, small boat)<\/td>\n<td>White<\/td>\n<td>360\u00b0<\/td>\n<td>2 miles<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Navigation_lights_by_type_of_boat\"><\/span>Navigation lights by type of boat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Navigation lights change depending on whether the boat is under power or sail, its length and whether it is underway or at anchor. These are the most common cases in recreational boating:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Motorboat_under_12_metres\"><\/span>Motorboat under 12 metres<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sidelights (green and red) plus an all-round white light, or separate masthead and stern lights. If it is under 7 metres and cannot exceed 7 knots, an all-round white light is enough, with sidelights if practicable.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sailing_boat_under_sail\"><\/span>Sailing boat under sail<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sidelights and sternlight, but <strong>no masthead light<\/strong>. If it is under 20 metres, they can be combined in a tricolour lantern at the top of the mast. A sailing boat under 7 metres may simply have a white torch ready to show in time.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Sailing_boat_under_engine\"><\/span>Sailing boat under engine<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>As soon as the engine is running, even with sails up, it is a power-driven vessel and must also show the masthead light. This is a classic exam trick question.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Boat_at_anchor\"><\/span>Boat at anchor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>One all-round white light in the bow, where it can best be seen. Boats under 7 metres do not need it unless they anchor in or near a channel, fairway, anchorage or where other vessels normally navigate. See our guide on <a href=\"https:\/\/www.oceanautic.es\/en\/blog\/how-to-anchor-a-boat-correctly\/\">how to anchor a boat correctly<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reading_another_boats_navigation_lights\"><\/span>Reading another boat&#8217;s navigation lights<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Another boat&#8217;s navigation lights tell you at a glance which side of it you are seeing and where it is heading. A single red light means you are looking at its port side; a single green light, its starboard side. If you see the white masthead light and both sidelights at once, it is coming straight towards you.<\/p>\n<p>In that head-on situation, COLREGs Rule 14 applies: both power-driven vessels alter course to starboard and pass port to port, showing each other their red lights.<\/p>\n<ul>\n<li><strong>Only a white light:<\/strong> you are seeing the stern of a boat moving away, a boat at anchor or a small boat with an all-round light.<\/li>\n<li><strong>Green and white:<\/strong> the other boat is showing you its starboard side. If it is crossing on your port side, it must keep clear; you hold your course and speed, watching what it does.<\/li>\n<li><strong>Red and white:<\/strong> it is showing you its port side. If it is crossing on your starboard side, you must give way (Rule 15).<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Which_licence_you_need_to_go_out_at_night\"><\/span>Which licence you need to go out at night<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Spanish navigation licence (\u201ctitul\u00edn\u201d) only allows daytime navigation, so a trip that ends after dark requires at least the PNB. With the PNB and the PER you can navigate by day and night, and navigation lights are part of the syllabus of both exams, together with buoyage and the collision regulations.<\/p>\n<p>If you are thinking about getting a licence, we explain the differences in <a href=\"https:\/\/www.oceanautic.es\/en\/blog\/pnb-or-per\/\">PNB or PER<\/a> and the limits of the basic licence in <a href=\"https:\/\/www.oceanautic.es\/en\/blog\/navigation-license-in-malaga-titulin-and-nautical-courses-costa-del-sol\/\">navigation licence in Malaga<\/a>. At Oceanautic we run the <a href=\"https:\/\/www.oceanautic.es\/en\/product\/pnb\/\">PNB course in Malaga<\/a> and the <a href=\"https:\/\/www.oceanautic.es\/en\/product\/per-course\/\">PER course in Malaga<\/a> at Benalm\u00e1dena marina.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"When_must_navigation_lights_be_switched_on\"><\/span>When must navigation lights be switched on?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>From sunset to sunrise and, during the day, whenever visibility is restricted (fog, haze or heavy rain). During that time no other lights that could be mistaken for them may be shown.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_colour_is_the_starboard_light\"><\/span>What colour is the starboard light?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Green. The port light is red. A classic way to remember it: \u201cport wine is red\u201d, and port is also the shorter word, like red.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_sailing_boat_show_a_masthead_light\"><\/span>Does a sailing boat show a masthead light?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Only when it is under engine. Under sail alone it shows sidelights and a sternlight, or a tricolour at the masthead if it is under 20 metres.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_light_does_a_boat_at_anchor_show\"><\/span>What light does a boat at anchor show?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>One all-round white light in the bow. Boats under 7 metres only need it when anchored near channels, fairways, anchorages or where other boats normally pass.<\/p>\n<p><script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"When must navigation lights be switched on?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"From sunset to sunrise and, during the day, whenever visibility is restricted (fog, haze or heavy rain). During that time no other lights that could be mistaken for them may be shown.\"}},\n{\"@type\":\"Question\",\"name\":\"What colour is the starboard light?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Green. The port light is red. A classic way to remember it: port wine is red, and port is also the shorter word, like red.\"}},\n{\"@type\":\"Question\",\"name\":\"Does a sailing boat show a masthead light?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Only when it is under engine. 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In winter on the Costa del Sol it gets dark around six in the evening, so&#8230;<\/p>\n","protected":false},"author":2,"featured_media":36655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88,87],"tags":[],"class_list":["post-36645","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nautical","category-navigation-licence"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What navigation lights does a small boat need at night?<\/title>\n<meta name=\"description\" content=\"Navigation lights for small boats: masthead, sidelights, sternlight and anchor light by length, under power or sail, and how to read another boat&#039;s lights.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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