Kellersee, Kellersee, Eutin, Sielbeck · Lake
The current water temperature at Kellersee is 18.0 °C (as of September 1, 2026, source: Badegewässer Schleswig-Holstein (Open Data SH)).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Can you swim at Kellersee 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 Kellersee?
Currently 18.0 °C (updated continuously).
How is the water quality at Kellersee?
The official classification is: excellent.