Welcome to the Baltic Sea Ice Service

17.02.2026

In the Bay of Bothnia, there is up to 75 cm thick fast ice in the northern archipelagos and up to 40cm thick fast ice in the southern part. At sea there is very close ice, 20-45cm thick in the north and 15-35cm thick in the south. The Quark is covered by very close ice and at the coast there is 15–45 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 thin ice of different concentrations. 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 5-20cm thick very close ice and 15-45cm thick fast ice is present in the northeast. Elsewhere in the Baltic region, new ice drifts outside the coast in many 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. New ice is present outside the northeastern coast of the Skagerrak. Ice is present in places along the North Sea coast.