Welcome to the Baltic Sea Ice Service

15.01.2026

In the Bay of Bothnia, there is up to 50 cm thick fast ice in the northern archipelagos with thin level ice further out. At sea north of 64°55’N, there is mainly level or close to very close, up to 20 cm thick ice. In the southern Bay of Bothnia, there is up to 25 cm thick fast ice or level ice along the coast and new ice and very open ice further out. In the Quark, there is 10 – 25 cm thick level ice or fast ice in the archipelago and open to close, thin ice at sea. In the Bothnian Sea, there is level ice and new ice along the coast. In the Gulf of Finland, there is fast ice in the easternmost part and new ice slightly further west. Elsewhere along the coast is mostly new ice or thin level ice. In the northeastern Gulf of Riga and western Lake Mälaren, there is new ice or thin level ice. Else in the Baltic region, there is new ice in sheltered places along the coast as well as very close ice, thicker than 10 cm in the Boddenwaters around Rügen and the lagoons in the south and southeast.