Mont-Tremblant
September
Weather in Mont-Tremblant for September 2026
Your guide to Mont-Tremblant weather in September - trends and predictions
So far, September 2026 in Mont-Tremblant is slightly warmer than the historical average by 1.7 °C.
The forecast for the next days in Mont-Tremblant predicts a temperature of 14.1 °C, which is cooler than the historical average.
In general, the average temperature in Mont-Tremblant at the beginning of September is 20.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16 °C by the end of September.
Mont-Tremblant experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 95.6 mm.
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Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
19°/10°
Temperatures
12 km/h
Avg max wind
76 %
Avg humidity
Mont-Tremblant Weather September
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Temperatures trend during September in Mont-Tremblant
See the weather trend as well as the moving average line
September weather in Mont-Tremblant day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 21° /11° | 2.3 mm | 4 | |
| 2 Sept. | Patchy rain possible | 20° /11° | 27.8 mm | 4 | |
| 3 Sept. |  Partly cloudy | 21° /11° | 9.6 mm | 4 | |
| 4 Sept. |  Sunny | 22° /12° | 7.6 mm | 6 | |
| 5 Sept. |  Mist | 21° /10° | 8.8 mm | 5 | |
| 6 Sept. | Mist | 20° /11° | 0 mm | 5 | |
| 7 Sept. | Light rain shower | 18° /8° | 5.8 mm | 5 | |
| 8 Sept. |  Overcast | 14° /7° | 5.3 mm | 3 | |
| 9 Sept. | Mist | 19° /6° | 5.9 mm | 3 | |
| 10 Sept. | Mist | 19° /5° | 0.1 mm | 5 | |
| 11 Sept. | Sunny | 19° /7° | 0 mm | 5 | |
| 12 Sept. | Overcast | 19° /9° | 0 mm | 5.2 | |
| 13 Sept. | Light rain shower | 21° /11° | 4.2 mm | 3.3 | |
| 14 Sept. | Sunny | 13° /4° | 0 mm | 4.8 | |
| 15 Sept. | Overcast | 14° /6° | 0.5 mm | 3 | |
| 16 Sept. | Overcast | 17° /11° | 0.3 mm | 4 | |
| 17 Sept. | Overcast | 15° /8° | 0 mm | 3 | |
| 18 Sept. | Light rain shower | 8° /6° | 7.4 mm | 2 | |
| 19 Sept. | Fog | 10° /6° | 0.9 mm | 3 | |
| 20 Sept. | Sunny | 14° /6° | 0 mm | 4 | |
| 21 Sept. | Partly cloudy | 16° /6° | 0 mm | 5 | |
| 22 Sept. | Sunny | 16° /8° | 0 mm | 5 | |
| 23 Sept. | Patchy rain possible | 15° /10° | 7.6 mm | 3 | |
| 24 Sept. | Patchy rain possible | 11° /2° | 0.7 mm | 2 | |
| 25 Sept. | Overcast | 9° /-1° | 0 mm | 2 | |
| 26 Sept. |  Moderate or heavy rain shower | 17° /11° | 16.3 mm | 4 | |
| 27 Sept. | Overcast | 18° /8° | 0 mm | 4 | |
| 28 Sept. | Mist | 20° /12° | 0 mm | 5 | |
| 29 Sept. | Mist | 21° /8° | 0 mm | 5 | |
| 30 Sept. | Partly cloudy | 16° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Mont-Tremblant in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mont-Tremblant forecast closer to your planned date for the most up-to-date weather information.
Change Month
Mont-Tremblant in September - FAQ
What are the expected maximum and minimum temperatures in Mont-Tremblant during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Mont-Tremblant during September?
Moderate rainfall is anticipated in Mont-Tremblant during September, with a total of 95.6 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Mont-Tremblant during September?
The average wind speed in Mont-Tremblant during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Mont-Tremblant
Explore the daily rainfall trends and prepare for Mont-Tremblants September weather 💧
Typically, Mont-Tremblant has 6 rainy days in September with a total of 95.6 mm of rainfall.
UV exposure in Mont-Tremblant during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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