Seas · Wind · Tides · Sea marks

Boating near you

Live wind and sea state near you, a marine map with buoys, lights and harbours, and a GO / OK / CARE score for every spot.

Finding your area…

Boating right now near you

Marine map

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Wind under 12 kn16–22 kn22–30 kn30+ kn Spot — tap for live conditions

How we score boating

GO — Seas under 2 ft (0.6 m) and wind under 14 mph.
OK — Some chop: up to about 3 ft or 17 mph — fine for most boats, slower going.
CARE — Rough for small boats: stay inside bays and close to harbour.
NO — Thunderstorms, seas over 6.5 ft (2 m) or gusts over 35 mph.

Before you go

  • File a float plan: tell someone where you go and when you are back.
  • Cross inlets on the incoming tide — outgoing tide against an onshore wind stacks steep waves.
  • Afternoon storms build fast near the coast: watch the sky to the west.
  • Carry life jackets for everyone, a VHF radio, flares and enough fuel for the way back plus a third.
  • Always check the official marine forecast and local notices before leaving.

Good to know

Wind is the first thing to check: above about 15 mph the sea builds quickly, and gusts make docking and anchoring harder. The direction matters too — an onshore wind pushes waves into inlets and harbour mouths.

Waves are shown as the significant wave height: the average of the highest third. Single waves can be almost twice as high, especially when the swell period is long.

The sea marks layer comes from OpenSeaMap: buoys, beacons, lights, harbours and anchorages drawn on top of the map. It is a great planning aid, but never a replacement for official nautical charts.

Boating forecasts by country

United States 778 Brazil 366 Spain 342 Australia 293 Italy 289 Germany 284 United Kingdom 245 France 217 South Africa 176 Sweden 135 Denmark 133 Mexico 121 Canada 118 Greece 110 Netherlands 102 New Zealand 94 Ireland 94 Portugal 85 Philippines 81 Argentina 77 Bahamas 73 Thailand 62 Egypt 59 Chile 56 Norway 55 Peru 55 Japan 44 Morocco 40 Türkiye 34 Poland 32 Mauritius / Maurice 32 Costa Rica 31 China 29 Cuba 28 Colombia 27 Indonesia 27 Puerto Rico 26 Venezuela 25 Cape Verde 24 Dominican Republic 23 Taiwan 23 Moçambique 22 South Korea 21 Fiji 20 Croatia 19 Namibia 19 Belgium 18 Vietnam 18 Panama 18 Tunisia 18 Latvija 17 Bulgaria 17 Cyprus 17 Maldives 16 Israel 16 Österreich 16 Ukraine 16 Oman 15 Switzerland 15 Eesti 15