Weather in East Gwillimbury for September 2025
Until now, September 2025 in East Gwillimbury is cooler than usual, with temperatures averaging 21.4 °C, this is -2.2 °C below the typical seasonal average.
The forecast for the upcoming days in East Gwillimbury predicts a temperature of 25.2 °C, which is slightly above the historical average.
In general, the average temperature in East Gwillimbury at the beginning of September is 24.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 23.6 °C by the end of September.
East Gwillimbury experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 51.3 mm.
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East Gwillimbury Weather September
Temperatures trend during September in East Gwillimbury
September weather in East Gwillimbury day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 24° /10° | 0 mm | 5 | |
| 2 Sept. | Mist | 22° /11° | 0.2 mm | 5 | |
| 3 Sept. |  Partly cloudy | 27° /12° | 0.5 mm | 6 | |
| 4 Sept. | Partly cloudy | 26° /14° | 14.5 mm | 6 | |
| 5 Sept. | Partly cloudy | 27° /13° | 0 mm | 7 | |
| 6 Sept. |  Thundery outbreaks possible | 25° /15° | 4.7 mm | 5 | |
| 7 Sept. |  Light rain shower | 19° /11° | 4 mm | 4 | |
| 8 Sept. |  Overcast | 20° /7° | 0.1 mm | 5 | |
| 9 Sept. | Mist | 23° /8° | 1.6 mm | 5 | |
| 10 Sept. | Mist | 23° /10° | 0 mm | 5 | |
| 11 Sept. | Patchy rain possible | 24° /12° | 0.3 mm | 6 | |
| 12 Sept. |  Moderate or heavy rain shower | 24° /13° | 5.7 mm | 6 | |
| 13 Sept. |  Cloudy | 22° /12° | 0 mm | 5 | |
| 14 Sept. | Overcast | 24° /12° | 0 mm | 6 | |
| 15 Sept. | Mist | 24° /10° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 28° /9° | 0 mm | 1.3 | |
| 17 Sept. |  Sunny | 26° /13° | 0 mm | 1.3 | |
| 18 Sept. | Partly cloudy | 29° /13° | 0 mm | 1.2 | |
| 19 Sept. | Sunny | 21° /10° | 0 mm | 1.4 | |
| 20 Sept. | Sunny | 19° /6° | 0 mm | 0 | |
| 21 Sept. | Patchy rain possible | 28° /13° | 2 mm | 4 | |
| 22 Sept. | Patchy rain possible | 30° /17° | 0.5 mm | 5 | |
| 23 Sept. | Partly cloudy | 28° /15° | 0.1 mm | 6 | |
| 24 Sept. | Sunny | 28° /15° | 0 mm | 6 | |
| 25 Sept. | Sunny | 23° /11° | 0 mm | 5 | |
| 26 Sept. | Sunny | 20° /8° | 0 mm | 4 | |
| 27 Sept. | Sunny | 19° /6° | 0 mm | 4 | |
| 28 Sept. | Sunny | 25° /9° | 0 mm | 5 | |
| 29 Sept. | Sunny | 29° /14° | 0 mm | 6 | |
| 30 Sept. | Mist | 21° /12° | 0 mm | 5 | |
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East Gwillimbury in September - FAQ
September rainfall patterns in East Gwillimbury
UV exposure in East Gwillimbury during September
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Where is East Gwillimbury?Get accurate weather forecasts for East Gwillimbury, located at latitude 44.101 and longitude -79.438. Stay updated with localized weather information tailored for East Gwillimbury.