Weather in Terrebonne for September 2026
Until now, September 2026 in Terrebonne has been nearly identical to the historical average, with a temperature of 23.8 °C (showing only a slight deviation of 0 °C).
Expect cooler weather in the next days in Terrebonne with the forecast suggesting a temperature of 19.6 °C, lower than the historical average.
In general, the average temperature in Terrebonne at the beginning of September is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °C by the end of September.
The climate of Terrebonne in September is notably wet, with an average of 11 rainy days, and a total of 127.4 mm of precipitation.
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Terrebonne Weather September
Temperatures trend during September in Terrebonne
September weather in Terrebonne day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 25° /11° | 1.5 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 24° /12° | 14.8 mm | 5 | |
| 3 Sept. |  Overcast | 25° /14° | 12.5 mm | 5 | |
| 4 Sept. | Overcast | 26° /13° | 7.7 mm | 6 | |
| 5 Sept. |  Mist | 25° /14° | 21.2 mm | 6 | |
| 6 Sept. | Fog | 24° /15° | 2.9 mm | 6 | |
| 7 Sept. |  Patchy light rain with thunder | 24° /12° | 3.8 mm | 5 | |
| 8 Sept. | Light rain shower | 20° /11° | 10.6 mm | 4 | |
| 9 Sept. |  Sunny | 21° /8° | 4.7 mm | 4 | |
| 10 Sept. |  Moderate rain | 22° /9° | 1 mm | 5 | |
| 11 Sept. | Sunny | 21° /8° | 0 mm | 5.1 | |
| 12 Sept. | Overcast | 23° /12° | 0 mm | 5.1 | |
| 13 Sept. | Overcast | 24° /17° | 2.6 mm | 3 | |
| 14 Sept. | Sunny | 20° /10° | 5 mm | 4.7 | |
| 15 Sept. | Overcast | 17° /7° | 0 mm | 4 | |
| 16 Sept. | Overcast | 23° /14° | 7.5 mm | 6 | |
| 17 Sept. | Overcast | 19° /11° | 0 mm | 5 | |
| 18 Sept. | Sunny | 20° /9° | 0 mm | 5 | |
| 19 Sept. | Sunny | 22° /7° | 0.5 mm | 6 | |
| 20 Sept. | Sunny | 14° /4° | 0 mm | 4 | |
| 21 Sept. | Overcast | 17° /4° | 0 mm | 4 | |
| 22 Sept. | Overcast | 20° /11° | 1.9 mm | 6 | |
| 23 Sept. | Light rain shower | 15° /13° | 16.7 mm | 3 | |
| 24 Sept. | Partly cloudy | 22° /11° | 0 mm | 6 | |
| 25 Sept. |  Moderate or heavy rain shower | 16° /11° | 47.7 mm | 4 | |
| 26 Sept. | Sunny | 20° /10° | 38.6 mm | 5 | |
| 27 Sept. | Sunny | 20° /8° | 0 mm | 5 | |
| 28 Sept. | Sunny | 21° /10° | 0 mm | 5 | |
| 29 Sept. | Mist | 22° /9° | 0 mm | 5 | |
| 30 Sept. | Mist | 21° /9° | 0 mm | 5 | |
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Terrebonne in September - FAQ
What are the expected maximum and minimum temperatures in Terrebonne during September?
How much rainfall should be expected in Terrebonne during September?
What are the typical wind conditions in Terrebonne during September?
September rainfall patterns in Terrebonne
UV exposure in Terrebonne during September
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Where is Terrebonne?Get accurate weather forecasts for Terrebonne, located at latitude 45.7 and longitude -73.647. Stay updated with localized weather information tailored for Terrebonne.