Water temperature of the Baltic Sea in may Where to swim in the Baltic Sea in may 2025?
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 may.
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 may.
The seasonal average for the water temperature in the month of may is between 36°F and 54°F. The lowest sea temperature measured this month is 28°F and the highest is 62°F.
The sea temperature map of the Baltic Sea in may
The map below presents a monthly average of the water temperature of the Baltic Sea for the month of may 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 may.
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWhere can you swim in the Baltic Sea in may?
Below, see the average temperatures measured in may in the different countries on the shores of the Baltic Sea.
Germany
50°F to 54°F
freezing swimmingDenmark
48°F to 54°F
freezing swimmingEstonia
45°F to 47°F
freezing swimmingFinland
36°F to 45°F
freezing swimmingLapland
38°F to 39°F
freezing swimmingLatvia
48°F to 50°F
freezing swimmingLithuania
50°F to 50°F
freezing swimmingPoland
48°F to 51°F
freezing swimmingRussia
42°F to 51°F
freezing swimmingSweden
38°F to 54°F
freezing swimmingWater temperature of the Baltic Sea: choose another month
See monthly seasonal averages of the water temperature of the Baltic Sea by clicking on the links below: