Welcome to the Baltic Sea Ice Service

22.04.2026

In the Bay of Bothnia, there is rotten fast ice along the coasts in the north. At sea in the north, there is very close, 20–50 cm thick and in places ridged and rafted ice. Areas of open water and leads occur in the ice field. In the east, there is open to very close ice with drifting floes to Ulkokala in the south. Further south it is ice-free.