Lake Joseph vs Lake Rosseau

Both lakes are sitting at about the same temperature right now. They are roughly 10 km apart in Canada.

Lake Joseph

Ontario

20.6°C

warm · modelled estimate

September average
20.6°C
Warmest month
August · 22.0°C
Coldest month
1.0°C
Swim season
July–September

Lake Joseph in Ontario, Canada reaches comfortable swimming temperatures in July and August, and freezes or near-freezes in winter.

Lake Rosseau

Ontario

20.6°C

warm · modelled estimate

September average
20.6°C
Warmest month
August · 22.0°C
Coldest month
1.0°C
Swim season
July–September

Lake Rosseau in Ontario, Canada reaches comfortable swimming temperatures in July and August, and freezes or near-freezes in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Joseph2.4°C1.0°C2.4°C6.3°C11.5°C16.8°C20.6°C22.0°C20.6°C16.8°C11.5°C6.3°C
Lake Rosseau2.4°C1.0°C2.4°C6.3°C11.5°C16.8°C20.6°C22.0°C20.6°C16.8°C11.5°C6.3°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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