Weather in Muskoka for September 2026
Until now, September 2026 in Muskoka is slightly cooler than the historical average by 0.7 °C.
An exceptional deviation from the historical average is forecasted for next days of September 2026 in Muskoka with the forecasted temperature being 15.6 °C, much lower than usual.
In general, the average temperature in Muskoka at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 21.1 °C by the end of September.
Muskoka experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 167.2 mm.
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Muskoka Weather September
Temperatures trend during September in Muskoka
September weather in Muskoka day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Moderate rain at times | 24° /13° | 3 mm | 4 | |
| 2 Sept. |  Sunny | 22° /13° | 2 mm | 4 | |
| 3 Sept. |  Partly cloudy | 23° /13° | 0 mm | 6 | |
| 4 Sept. | Sunny | 21° /10° | 30 mm | 6 | |
| 5 Sept. | Sunny | 22° /10° | 0 mm | 6 | |
| 6 Sept. | Moderate or heavy rain shower | 18° /12° | 7.5 mm | 5 | |
| 7 Sept. |  Heavy rain at times | 16° /7° | 7.7 mm | 4 | |
| 8 Sept. |  Overcast | 19° /9° | 0.5 mm | 3 | |
| 9 Sept. | Moderate or heavy rain shower | 21° /11° | 7.6 mm | 4 | |
| 10 Sept. |  Patchy rain possible | 21° /10° | 0.1 mm | 5 | |
| 11 Sept. | Partly cloudy | 22° /9° | 0 mm | 6 | |
| 12 Sept. | Overcast | 23° /10° | 0 mm | 6 | |
| 13 Sept. | Sunny | 23° /13° | 1.3 mm | 5 | |
| 14 Sept. | Partly cloudy | 22° /12° | 0 mm | 6 | |
| 15 Sept. | Sunny | 23° /12° | 1.3 mm | 4 | |
| 16 Sept. | Sunny | 24° /12° | 0 mm | 4 | |
| 17 Sept. |  Cloudy | 24° /12° | 0 mm | 4 | |
| 18 Sept. | Overcast | 22° /11° | 0 mm | 4 | |
| 19 Sept. | Overcast | 20° /8° | 0 mm | 4 | |
| 20 Sept. | Overcast | 21° /8° | 0 mm | 5 | |
| 21 Sept. | Moderate or heavy rain shower | 18° /9° | 3.1 mm | 3 | |
| 22 Sept. | Patchy rain possible | 21° /11° | 22.4 mm | 5 | |
| 23 Sept. | Moderate or heavy rain shower | 20° /12° | 17.4 mm | 4 | |
| 24 Sept. | Moderate or heavy rain shower | 19° /12° | 2.2 mm | 4 | |
| 25 Sept. | Heavy rain at times | 20° /12° | 16.6 mm | 5 | |
| 26 Sept. | Overcast | 22° /9° | 0 mm | 4.5 | |
| 27 Sept. | Overcast | 21° /11° | 0 mm | 4.8 | |
| 28 Sept. | Partly cloudy | 22° /11° | 0 mm | 4.7 | |
| 29 Sept. | Overcast | 22° /14° | 0 mm | 4 | |
| 30 Sept. | Overcast | 22° /13° | 2.6 mm | 5 | |
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Muskoka in September - FAQ
What are the expected maximum and minimum temperatures in Muskoka during September?
How much rainfall should be expected in Muskoka during September?
What are the typical wind conditions in Muskoka during September?
September rainfall patterns in Muskoka
UV exposure in Muskoka during September
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