Lac de Chalain vs Lake Geneva
Lac de Chalain is the warmer swim right now at about 19.3°C. They are roughly 59 km apart in France and Switzerland.
Lac de Chalain
Jura
19.3°C
mild · modelled estimate
- October average
- 19.3°C
- Warmest month
- August · 24.0°C
- Coldest month
- 5.0°C
- Swim season
- June–October
Lac de Chalain in Jura, France reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Lake Geneva
Vaud / Geneva
18.0°C
mild · modelled estimate
- October average
- 18.0°C
- Warmest month
- August · 22.0°C
- Coldest month
- 6.0°C
- Swim season
- June–October
Crescent-shaped Swiss–French lake with city bains at Geneva and Lausanne.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lac de Chalain | 6.3°C | 5.0°C | 6.3°C | 9.8°C | 14.5°C | 19.3°C | 22.7°C | 24.0°C | 22.7°C | 19.3°C | 14.5°C | 9.8°C |
| Lake Geneva | 7.1°C | 6.0°C | 7.1°C | 10.0°C | 14.0°C | 18.0°C | 20.9°C | 22.0°C | 20.9°C | 18.0°C | 14.0°C | 10.0°C |
Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.
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