Lake Couchiching vs Lake Rosseau
Lake Couchiching is the warmer swim right now at about 21.5°C. They are roughly 62 km apart in Canada.
Lake Couchiching
Ontario
warm · modelled estimate
- September average
- 21.5°C
- Warmest month
- August · 23.0°C
- Coldest month
- 1.0°C
- Swim season
- July–September
Lake Couchiching in Ontario, Canada reaches comfortable swimming temperatures in July and August, and freezes or near-freezes in winter.
Lake Rosseau
Ontario
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
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lake Couchiching | 2.5°C | 1.0°C | 2.5°C | 6.5°C | 12.0°C | 17.5°C | 21.5°C | 23.0°C | 21.5°C | 17.5°C | 12.0°C | 6.5°C |
| Lake Rosseau | 2.4°C | 1.0°C | 2.4°C | 6.3°C | 11.5°C | 16.8°C | 20.6°C | 22.0°C | 20.6°C | 16.8°C | 11.5°C | 6.3°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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