Sea state · Water temp · Dive sites

Diving & snorkel near you

Calm-sea windows, water temperature, depth map and the dive centres, reefs and wrecks around you.

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Diving & snorkel right now near you

Depth & spots map

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

How we score diving & snorkel

Excellent — Waves under 0.5 m and light wind: flat surface, best visibility.
Good — Waves under 0.9 m: easy entries, some surface chop.
Fair — Waves up to 1.4 m: boat dives OK, shore entries harder, lower visibility.
Poor — Rough sea or storms: stay out.

Before you go

  • Plan shore dives around slack tide (near high or low tide) for the weakest currents.
  • After heavy rain, visibility near river mouths and beaches drops for a day or two.
  • Never dive alone, and use a surface marker buoy where boats pass.
  • Check your suit against the water temperature: below 22 °C (72 °F) most divers want at least 5 mm.
  • Don't fly within 18–24 hours after diving.

Good to know

Visibility depends mostly on how calm the sea has been — not only today but the last two or three days. A long swell from far away can stir the bottom even when the surface looks flat.

The depth map shows the shape of the sea floor. Reefs and drop-offs close to shore are often the best snorkelling spots on calm days.

Dive centres, wrecks and reefs come from OpenStreetMap. Zoom in on any coast and tap "Show in this area" to load them.

Diving & snorkel 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