Lake Aegeri vs Lake Hallwil

Lake Hallwil is the warmer swim right now at about 18.3°C. They are roughly 35 km apart in Switzerland.

Lake Aegeri

Zug

16.8°C

mild · modelled estimate

October average
16.8°C
Warmest month
August · 21.0°C
Coldest month
4.0°C
Swim season
July–September

Lake Aegeri in Zug, Switzerland is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.

Lake Hallwil

Aargau

18.3°C

mild · modelled estimate

October average
18.3°C
Warmest month
August · 23.0°C
Coldest month
4.0°C
Swim season
June–October

Lake Hallwil in Aargau, Switzerland reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Aegeri5.1°C4.0°C5.1°C8.3°C12.5°C16.8°C19.9°C21.0°C19.9°C16.8°C12.5°C8.3°C
Lake Hallwil5.3°C4.0°C5.3°C8.8°C13.5°C18.3°C21.7°C23.0°C21.7°C18.3°C13.5°C8.8°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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