Welcome to the Baltic Sea Ice Service

19.04.2024

In the Bay of Bothnia there is fast ice in the archipelagos, up to 80 cm thick in the north and up to 50 cm thick and rotting in the south. At sea in the central and western part there is 20–70 cm thick, very close, ridged ice. In the southwestern part is very open to close, 10–40 cm thick drift ice. Along the Finnish coast is a wide lead with open water and thicker drifting floes at places. In the Quark there is rotten fast ice at the coasts and at sea there is mainly open water. At the coasts of the Sea of Bothnia there is rotten ice in places. The Gulf of Finland is ice-free.