Lake Biel vs Lake Sarnen
Lake Biel is the warmer swim right now at about 17.5°C. They are roughly 83 km apart in Switzerland.
Lake Biel
Bern
mild · modelled estimate
- October average
- 17.5°C
- Warmest month
- August · 22.0°C
- Coldest month
- 4.0°C
- Swim season
- July–September
Lake Biel in Bern, Switzerland reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.
Lake Sarnen
Obwalden
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.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Biel | 5.2°C | 4.0°C | 5.2°C | 8.5°C | 13.0°C | 17.5°C | 20.8°C | 22.0°C | 20.8°C | 17.5°C | 13.0°C | 8.5°C |
| 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 |
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.
Related lake comparisons
Want a different mix? Compare up to four lakes side by side or browse all lake water temperatures.
Explore every sea temperature page
Jump straight to a country, coastal region, city, seasonal ranking or comparison.