Lac de Castillon vs Lac du Bourget
Lac de Castillon is the warmer swim right now at about 22.9°C. They are roughly 214 km apart in France.
Lac de Castillon
Provence
warm · modelled estimate
- September average
- 22.9°C
- Warmest month
- August · 24.0°C
- Coldest month
- 8.0°C
- Swim season
- June–October
Lac de Castillon in Provence, France reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Lac du Bourget
Auvergne-Rhone-Alpes
warm · modelled estimate
- September average
- 22.8°C
- Warmest month
- August · 24.0°C
- Coldest month
- 6.0°C
- Swim season
- June–October
Lac du Bourget in Auvergne-Rhone-Alpes, France reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lac de Castillon | 9.1°C | 8.0°C | 9.1°C | 12.0°C | 16.0°C | 20.0°C | 22.9°C | 24.0°C | 22.9°C | 20.0°C | 16.0°C | 12.0°C |
| Lac du Bourget | 7.2°C | 6.0°C | 7.2°C | 10.5°C | 15.0°C | 19.5°C | 22.8°C | 24.0°C | 22.8°C | 19.5°C | 15.0°C | 10.5°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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