Lake Baikal vs Lake Saimaa

Lake Saimaa is the warmer swim right now at about 18.7°C. They are roughly 4549 km apart in Russia and Finland.

Lake Baikal

Siberia

13.1°C

cool · modelled estimate

September average
13.1°C
Warmest month
August · 14.0°C
Coldest month
1.0°C
Swim season
no month averages above 18°C — a wetsuit lake year-round

The world's deepest lake — famously cold, with brief swimmable shallows in August.

Lake Saimaa

South Savonia

18.7°C

mild · modelled estimate

September average
18.7°C
Warmest month
August · 20.0°C
Coldest month
1.0°C
Swim season
July–September

Finland's labyrinthine lakeland, sauna-and-swim territory in July.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Baikal1.9°C1.0°C1.9°C4.3°C7.5°C10.8°C13.1°C14.0°C13.1°C10.8°C7.5°C4.3°C
Lake Saimaa2.3°C1.0°C2.3°C5.8°C10.5°C15.3°C18.7°C20.0°C18.7°C15.3°C10.5°C5.8°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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