Lake Mjøsa vs Lake Siljan

Lake Mjøsa is the warmer swim right now at about 14.8°C. They are roughly 208 km apart in Norway and Sweden.

Lake Mjøsa

Innlandet

14.8°C

cool · modelled estimate

October average
14.8°C
Warmest month
August · 19.0°C
Coldest month
2.0°C
Swim season
August–August

Norway's largest lake, with warm shallow beaches near Hamar in July.

Lake Siljan

Dalarna

14.5°C

cool · modelled estimate

October average
14.5°C
Warmest month
August · 19.0°C
Coldest month
1.0°C
Swim season
August–August

Lake Siljan in Dalarna, Sweden is swimmable in high summer, brisk either side of it, and freezes or near-freezes in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Mjøsa3.1°C2.0°C3.1°C6.3°C10.5°C14.8°C17.9°C19.0°C17.9°C14.8°C10.5°C6.3°C
Lake Siljan2.2°C1.0°C2.2°C5.5°C10.0°C14.5°C17.8°C19.0°C17.8°C14.5°C10.0°C5.5°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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