Water temperature of the Baltic Sea in december Where to swim in the Baltic Sea in december 2024?

Several countries border the seaside of the Baltic Sea, including: Germany, Denmark, Estonia, Finland, Lapland, Latvia, Lithuania, Poland, Russia and Sweden. We measure the water temperature daily in these countries and archive it in order to calculate monthly averages, like those of the month of december.

The seasonal average for the water temperature in the month of december is between 35°F and 44°F. The lowest sea temperature measured this month is 29°F and the highest is 50°F.

The sea temperature map of the Baltic Sea in december

The map below presents a monthly average of the water temperature of the Baltic Sea for the month of december for several coastal cities. You can zoom and move around on the map. By clicking on the markers, you can see sea temperature details by city in december.