Welcome to the Baltic Sea Ice Service

0/.01.2026

In the Bay of Bothnia, there is up to 45 cm thick fast ice in the northern archipelagos. Further out there is first level ice followed by new ice, in the west to about Simpgrund and in the east out to about 23°E. In the southern Bay of Bothnia there is level ice along the coast and new ice further out. In the Quark there is 10-20cm thick level ice or fast ice in the archipelago and very open ice further out. In the Bothnian Sea, there is level ice and new ice along the coast. In the Gulf of Finland, there is level ice in the far east and mostly new ice along the coast. In the northeastern gulf of Riga and western Lake Mälaren, there is new ice or thin level ice. Elsewhere in the Baltic region, there is new ice in sheltered places along the coast.