Lac de Robertville vs Lake Bostalsee
Lake Bostalsee is the warmer swim right now at about 21.7°C. They are roughly 118 km apart in Belgium and Germany.
Lac de Robertville
Liege
mild · modelled estimate
- September average
- 19.9°C
- Warmest month
- August · 21.0°C
- Coldest month
- 4.0°C
- Swim season
- July–September
Lac de Robertville in Liege, Belgium is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.
Lake Bostalsee
Saarland
warm · modelled estimate
- September average
- 21.7°C
- Warmest month
- August · 23.0°C
- Coldest month
- 3.0°C
- Swim season
- June–October
Lake Bostalsee in Saarland, Germany 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 Robertville | 5.1°C | 4.0°C | 5.1°C | 8.3°C | 12.5°C | 16.8°C | 19.9°C | 21.0°C | 19.9°C | 16.8°C | 12.5°C | 8.3°C |
| Lake Bostalsee | 4.3°C | 3.0°C | 4.3°C | 8.0°C | 13.0°C | 18.0°C | 21.7°C | 23.0°C | 21.7°C | 18.0°C | 13.0°C | 8.0°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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