The current water temperature at Lac d'Annecy is 26.2 °C (as of July 21, 2026, source: Eawag/Alplakes model).
26.2 °C
Measured: July 21, 2026 · continuously updated
Temperature trend of recent weeks
Water quality
EU classification: excellent
Frequently asked questions
Can you swim at Lac d'Annecy right now? The current water temperature is 26.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lac d'Annecy? Currently 26.2 °C (updated continuously).