Baltic Sea, Tättö Havsbad · Sea/Coast
The current water temperature at Baltic Sea is 18.0 °C (as of June 30, 2026, source: official monitoring networks).
Can you swim at Baltic Sea right now?
The current water temperature is 18.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Baltic Sea?
Currently 18.0 °C (updated continuously).