Welcome to the Baltic Sea Ice Service

20.04.2026

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. There is very open ice from Oulu to Raahe. Along the southern coast it is ice-free. The Quark and the Bothnian Sea are with exception of the Ångermanälven ice-free. In the Gulf of Finland, there are last remnants of melting ice northwest of Gogland. The Gulf of Riga is ice-free.