Welcome to the Baltic Sea Ice Service

23.02.2026

In the Bay of Bothnia, there fast ice along the coasts, up to 80 cm thick in the north and up to 45cm thick in the south. At sea there is very close ice, 20-45cm thick in the north and 10-40cm thick in the south. The Quark is covered by close ice and at the coast there is up to 50 cm thick fast ice. Along the coast of the Bothnian Sea, there is level ice and up to 45 cm thick fast ice, further out open water and new ice. In the Gulf of Finland, there is 20–45 cm thick fast ice in the east and 10-40cm thick fast ice along the northern coast. At sea there is very close ice, 20-40cm thick in the east thinning out towards the west. The Gulf of Riga is covered by mostly 5-25cm thick very close ice and up to 50cm thick fast ice is present in the northeast. Elsewhere in the Baltic region, open water or new ice is present outside the coast at places and in sheltered places like the Bodden¬waters around Rügen and the lagoons in the south and southeast there is fast ice as well as very close ice, 10-50cm thick. Close ice is drifting in the Pomeranian Bay.