Welcome to the Baltic Sea Ice Service

30.01.2026

In the Bay of Bothnia, there is up to 65 cm thick fast ice in the northern archipelagos and up to 30cm thick fast ice in the southern part. Outside the fast ice there is level ice in the north and new ice in the south. Else the Bay of Bothnia is covered by 5-30cm thick, very close ice. The Quark is covered by new ice and there is 10–35 cm thick fast ice in bays and in the archipelago. Along the coast of the Bothnian Sea, there is new ice or level ice and up to 30 cm thick fast ice in places. In the Gulf of Finland, there is 20–40 cm thick fast ice in the east, and 5-20cm thick ice is present at sea east of 26°E. In the northern archipelagos there is 5-30cm thick fast ice. In the west there is new ice outside the northern fast ice and at the southern coast there is new ice in places. In the Gulf of Riga there is up to 30 cm thick fast ice or very close ice in the northeast. Else, there is new ice along the coasts. Elsewhere in the Baltic region, there is new ice in places along the coast. In sheltered places like the Boddenwaters around Rügen and the lagoons in the south and southeast there is very close ice, partly thicker than 20 cm.