Lake Jasna vs Lake Ossiach
Lake Ossiach is the warmer swim right now at about 23.7°C. They are roughly 27 km apart in Slovenia and Austria.
Lake Jasna
Kranjska Gora
17.0°C
mild · modelled estimate
- September average
- 17.0°C
- Warmest month
- August · 18.0°C
- Coldest month
- 3.0°C
- Swim season
- August–August
Small emerald alpine lake at the foot of the Vršič pass.
Lake Ossiach
Carinthia
23.7°C
warm · modelled estimate
- September average
- 23.7°C
- Warmest month
- August · 25.0°C
- Coldest month
- 5.0°C
- Swim season
- June–October
Lake Ossiach in Carinthia, Austria warms into the mid-20s °C for reliable summer swimming, 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 Jasna | 4.0°C | 3.0°C | 4.0°C | 6.8°C | 10.5°C | 14.3°C | 17.0°C | 18.0°C | 17.0°C | 14.3°C | 10.5°C | 6.8°C |
| Lake Ossiach | 6.3°C | 5.0°C | 6.3°C | 10.0°C | 15.0°C | 20.0°C | 23.7°C | 25.0°C | 23.7°C | 20.0°C | 15.0°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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