Lake Bostalsee vs Lake Rursee

Lake Bostalsee is the warmer swim right now at about 18°C. They are roughly 127 km apart in Germany.

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.

Lake Rursee

North Rhine-Westphalia

17.3°C

mild · modelled estimate

October average
17.3°C
Warmest month
August · 22.0°C
Coldest month
3.0°C
Swim season
July–September

Lake Rursee in North Rhine-Westphalia, Germany reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
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
Lake Rursee4.3°C3.0°C4.3°C7.8°C12.5°C17.3°C20.7°C22.0°C20.7°C17.3°C12.5°C7.8°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.

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