Lake Annecy vs Lac du Bourget

Lac du Bourget is the warmer swim right now at about 22.9°C. They are roughly 27 km apart in France.

Lake Annecy

Haute-Savoie

21.9°C

warm · modelled estimate

September average
21.9°C
Warmest month
August · 23.0°C
Coldest month
6.0°C
Swim season
June–October

Reputedly Europe's cleanest lake, with free swim beaches all around the shore.

Lac du Bourget

Savoie

22.9°C

warm · modelled estimate

September average
22.9°C
Warmest month
August · 24.0°C
Coldest month
7.0°C
Swim season
June–October

France's largest natural lake, warm and sheltered near Aix-les-Bains.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Annecy7.1°C6.0°C7.1°C10.3°C14.5°C18.8°C21.9°C23.0°C21.9°C18.8°C14.5°C10.3°C
Lac du Bourget8.1°C7.0°C8.1°C11.3°C15.5°C19.8°C22.9°C24.0°C22.9°C19.8°C15.5°C11.3°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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