THRUST MARITIME

Sea State Explorer

Historical sea state by location

85 named offshore working areas, grouped by region. Each page gives the percentage of time significant wave height exceeds 1 to 4 m by calendar month, the mean wave height, wind and weather windows where the data carries them, the data point used, and a citation line. The figure beside each name is the share of the year with significant wave height above 2 m.

Data basis: WAVERYS wave reanalysis (Copernicus Marine) + ERA5 wind, 1980-2023, 3 hourly, 0.2° grid, nearest cell to each named position. For any other point use the explorer; how the numbers are made is in the How it works.

North Sea

• Ekofisk36% above 2 m over the year
• Forties41% above 2 m over the year
• Statfjord60% above 2 m over the year
• Sleipner45% above 2 m over the year
• Troll48% above 2 m over the year
• Johan Sverdrup47% above 2 m over the year
• Dogger Bank wind farm zone23% above 2 m over the year
• Leman13% above 2 m over the year
• Tyra32% above 2 m over the year
• Gemini wind farm21% above 2 m over the year

West of Shetland

• Clair66% above 2 m over the year

Irish Sea

• Morecambe Bay gas fields10% above 2 m over the year

Atlantic Ireland

• Corrib72% above 2 m over the year

Norwegian Sea

• Heidrun58% above 2 m over the year
• Ormen Lange58% above 2 m over the year
• Aasta Hansteen60% above 2 m over the year

Barents Sea

• Goliat47% above 2 m over the year
• Johan Castberg53% above 2 m over the year
• Prirazlomnoye8.2% above 2 m over the year

Baltic Sea

• Arkona Basin wind farms0.8% above 2 m over the year

Mediterranean

• Zohr6.4% above 2 m over the year
• Leviathan6.0% above 2 m over the year
• Raven (West Nile Delta)7.7% above 2 m over the year
• Bouri6.5% above 2 m over the year
• Barbara (Adriatic)1.3% above 2 m over the year

Black Sea

• Sakarya6.4% above 2 m over the year
• Neptun Deep6.2% above 2 m over the year

Red Sea

• Northern Red Sea off Hurghada0.6% above 2 m over the year

Persian Gulf

• Marjan0.3% above 2 m over the year
• North Field and South Pars2.0% above 2 m over the year
• Upper Zakum0.3% above 2 m over the year

Caspian Sea

• Azeri-Chirag-Guneshli4.1% above 2 m over the year
• Kashagan<0.1% above 2 m over the year

Gulf of Mexico

• Mars-Ursa6.8% above 2 m over the year
• Thunder Horse6.9% above 2 m over the year
• Perdido9.9% above 2 m over the year
• Louisiana shelf (Ship Shoal and South Timbalier)3.4% above 2 m over the year
• Cantarell0.9% above 2 m over the year

Brazil

• Roncador35% above 2 m over the year
• Tupi43% above 2 m over the year
• Búzios40% above 2 m over the year
• Sergipe deepwater16% above 2 m over the year

Guyana and Suriname

• Liza (Stabroek)27% above 2 m over the year
• Block 58 Suriname25% above 2 m over the year

West Africa

• Girassol and Dalia (Block 17)6.8% above 2 m over the year
• Bonga3.2% above 2 m over the year
• Akpo and Egina (OML 130)1.7% above 2 m over the year
• Sankofa and Jubilee area3.3% above 2 m over the year
• Greater Tortue Ahmeyim22% above 2 m over the year
• Sangomar11% above 2 m over the year

Southern Africa

• Venus (Orange Basin)74% above 2 m over the year
• Brulpadda and Luiperd92% above 2 m over the year

East Africa

• Coral South (Rovuma)7.7% above 2 m over the year

NW Shelf Australia

• Gorgon29% above 2 m over the year
• Ichthys and Prelude4.1% above 2 m over the year
• Scarborough68% above 2 m over the year
• North Rankin and Goodwyn9.8% above 2 m over the year
• Bayu-Undan4.4% above 2 m over the year

Bass Strait

• Kingfish (Gippsland)25% above 2 m over the year
• Thylacine (Otway)85% above 2 m over the year

SE Asia

• Kikeh and Gumusut-Kakap3.9% above 2 m over the year
• Tapis8.1% above 2 m over the year
• Bongkot1.0% above 2 m over the year
• Bach Ho17% above 2 m over the year
• Kutei deepwater (Jangkrik and Merakes)<0.1% above 2 m over the year
• Malampaya9.5% above 2 m over the year
• Yadana8.9% above 2 m over the year

East Asia

• Bozhong 19-6 (Bohai)1.8% above 2 m over the year
• Pinghu (East China Sea)22% above 2 m over the year
• Liuhua 11-135% above 2 m over the year
• Ulsan offshore (Donghae-1)11% above 2 m over the year
• Changhua wind farm zone29% above 2 m over the year

India

• Mumbai High21% above 2 m over the year
• KG-D66.9% above 2 m over the year

East Coast Canada

• Hibernia67% above 2 m over the year
• Bay du Nord (Flemish Pass)72% above 2 m over the year

Alaska

• Beaufort Sea off Prudhoe Bay12% above 2 m over the year
• Chukchi Sea (Burger)14% above 2 m over the year
• North Aleutian Basin26% above 2 m over the year

US Atlantic

• Vineyard Wind17% above 2 m over the year
• Empire Wind (New York Bight)6.5% above 2 m over the year
• Coastal Virginia Offshore Wind8.0% above 2 m over the year
• Georges Bank28% above 2 m over the year

Caribbean

• Columbus Basin (Trinidad)22% above 2 m over the year

New Zealand

• Maui (Taranaki)58% above 2 m over the year

Pages built 2026-10-23.

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