Haldensee, Strandbad, Grän · Lake
The current water temperature at Haldensee is 18.4 °C (as of September 1, 2026, source: AGES).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
This measurement series includes 203 data points since July 15, 2026.
Lowest recorded value: 16.2 °C on August 23, 2026 · highest value: 24.3 °C on August 12, 2026.
Can you swim at Haldensee right now?
The current water temperature is 18.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Haldensee?
Currently 18.4 °C (updated continuously).
How is the water quality at Haldensee?
The official classification is: excellent.