The temperatures in Mont Tremblant in September are quite cold with temperatures between 7°C and 17°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mont Tremblant during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Mont Tremblant in September 2025.
If you’re planning to visit Mont Tremblant in the near future, we highly recommend that you review the 14 day weather forecast for Mont Tremblant before you arrive.
Temperatures
17° / 7°
Rainy Days
7
Snowy Days
0
Dry Days
23
Rainfall
131
mm
Sun Hours
8.8
Hrs
