Lac de Pierre-Percee vs Lake Bostalsee

Lake Bostalsee is the warmer swim right now at about 18°C. They are roughly 122 km apart in France and Germany.

Lac de Pierre-Percee

Grand Est

17.5°C

mild · modelled estimate

October average
17.5°C
Warmest month
August · 22.0°C
Coldest month
4.0°C
Swim season
July–September

Lac de Pierre-Percee in Grand Est, France reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.

Lake Bostalsee

Saarland

18.0°C

mild · modelled estimate

October average
18.0°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

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lac de Pierre-Percee5.2°C4.0°C5.2°C8.5°C13.0°C17.5°C20.8°C22.0°C20.8°C17.5°C13.0°C8.5°C
Lake Bostalsee4.3°C3.0°C4.3°C8.0°C13.0°C18.0°C21.7°C23.0°C21.7°C18.0°C13.0°C8.0°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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