Lake Sarnen vs Lake Thun
Lake Thun is the warmer swim right now at about 17°C. They are roughly 44 km apart in Switzerland.
Lake Sarnen
Obwalden
16.3°C
mild · modelled estimate
- October average
- 16.3°C
- Warmest month
- August · 20.0°C
- Coldest month
- 5.0°C
- Swim season
- July–September
Lake Sarnen in Obwalden, Switzerland is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.
Lake Thun
Bernese Oberland
17.0°C
mild · modelled estimate
- October average
- 17.0°C
- Warmest month
- August · 21.0°C
- Coldest month
- 5.0°C
- Swim season
- July–September
Turquoise Bernese Oberland lake below the Eiger, with grassy swim lidos.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Sarnen | 6.0°C | 5.0°C | 6.0°C | 8.8°C | 12.5°C | 16.3°C | 19.0°C | 20.0°C | 19.0°C | 16.3°C | 12.5°C | 8.8°C |
| Lake Thun | 6.1°C | 5.0°C | 6.1°C | 9.0°C | 13.0°C | 17.0°C | 19.9°C | 21.0°C | 19.9°C | 17.0°C | 13.0°C | 9.0°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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