Lac du Bourget water temperature

Lac du Bourget, Le Bourget-du-Lac · Lake

The current water temperature at Lac du Bourget is 27.5 °C (as of July 21, 2026, source: Eawag/Alplakes model).

27.5 °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 du Bourget right now?
The current water temperature is 27.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lac du Bourget?
Currently 27.5 °C (updated continuously).

Open in the BrrChecker app