Lake Geneva water temperature

Lake Geneva, Nyon · Lake

The current water temperature at Lake Geneva is 22.4 °C (as of September 1, 2026, source: Eawag/Alplakes model).

Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.

22.4 °C

Measured: September 1, 2026 · continuously updated

💧 Water 22.4° · ☀️ Air 11.3° · high today 21.0°

Temperature trend of recent weeks

Lake Geneva — Photo: NicoCombi · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: good

Measurement series & statistics

This measurement series includes 477 data points since July 3, 2026.

Lowest recorded value: 20.4 °C on August 21, 2026 · highest value: 27.2 °C on August 5, 2026.

Nearby waters

Promenthouse, Gland, Route Suisse · 4.0 km away14.2 °C Lake Geneva, Plage Gitana, Bellevue · 15.3 km away22.3 °C Lake Geneva, Plage du Vengeron, Bellevue · 16.0 km away22.3 °C Aubonne, Allaman, Le Coulet · 16.8 km away11.5 °C Lac Léman, Thonon-les-Bains · 18.7 km away23.3 °C

More measuring points: Lake Geneva

Montreux23.2 °C Baignade Vieux-Port d'Ouchy, Lausanne22.9 °C Lausanne, Vidy22.9 °C Genève, Bains des Pâquis22.3 °C Plage du Vengeron, Bellevue22.3 °C Plage Gitana, Bellevue22.3 °C

Frequently asked questions

Can you swim at Lake Geneva right now?
The current water temperature is 22.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Geneva?
Currently 22.4 °C (updated continuously).

How is the water quality at Lake Geneva?
The official classification is: good.

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