Lake Lucerne vs Lake Thun

Lake Lucerne is the warmer swim right now at about 20.9°C. They are roughly 63 km apart in Switzerland.

Lake Lucerne

Central Switzerland

20.9°C

warm · modelled estimate

September average
20.9°C
Warmest month
August · 22.0°C
Coldest month
5.0°C
Swim season
July–September

Dramatic mountain-walled lake with lidos at Lucerne and Weggis.

Lake Thun

Bernese Oberland

19.9°C

mild · modelled estimate

September average
19.9°C
Warmest month
August · 21.0°C
Coldest month
5.0°C
Swim season
July–September

Turquoise Bernese Oberland lake below the Eiger, with grassy swim lidos.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Lucerne6.1°C5.0°C6.1°C9.3°C13.5°C17.8°C20.9°C22.0°C20.9°C17.8°C13.5°C9.3°C
Lake Thun6.1°C5.0°C6.1°C9.0°C13.0°C17.0°C19.9°C21.0°C19.9°C17.0°C13.0°C9.0°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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