Frisches Haff, Osłonka · Sea/Coast
The current water temperature at Frisches Haff is 11.3 °C (as of December 3, 2025, source: IMGW).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
Can you swim at Frisches Haff right now?
The current water temperature is 11.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Frisches Haff?
Currently 11.3 °C (updated continuously).