Welcome to the Baltic Sea Ice Service

09.01.2026

In the Bay of Bothnia, there is up to 45 cm thick fast ice in the northern archipelagos. Further out there is mostly level ice, but also new ice and open ice covering almost the whole region north of 65°N, an ice-free region going from about Farstugrunden to Rödkallen to Simpgrundet. In the southern Bay of Bothnia there is new ice or level ice along the coast, and very open ice at sea in the east. In the Quark there is 10 – 20 cm 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 easternmost part and new or thin 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. Elsewhere in the Baltic region, there is new ice in sheltered places along the coast.