Early autumn · Weather & things to do
Mont-Tremblant in September
Mont-Tremblant cools off: highs slip to 67°F (20°C), from 74°F in August, with lows of 48°F (9°C) and about 3.9 in (98 mm) of rain.
September opens the best stretch on our comfort score, at 84/100 (the top score of the year).
- Avg high
- 67°F (20°C)
- Avg low
- 48°F (9°C)
- Rain
- 3.9 in (98 mm)
- Humidity
- 81%
- Cloud cover
- 58%
- Daylight
- ~12 h 19 min
- Comfort score
- 84/100 · Great
What September feels like
Expect mild afternoons around 67°F (20°C), good for long walks.
Nights cool to an average low of 48°F (9°C).
Some rain is likely, about 3.9 in (98 mm) in the month, so pack for a shower or two.
Plan around September
September is one of Mont-Tremblant's best months on the climate data.
- Opens the best-scoring stretch on our comfort score: May & June and September.
- Last of the best-scoring months: by October, the score drops to 57/100.
- Comfort improves from 75/100 in August to 84/100.
- Our Quebec City & Mont-Tremblant route recommends Late Nov – Mar, so September falls outside its suggested window.
What to pack for September
- A warm layer for eveningslows near 48°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Mont-Tremblant in September
With conditions on your side, the picks below favor time outside.
Microbrasserie La Diable
Long-running village brewpub making its own beers, the classic apres-ski stop with burgers and sausages.
Lac Tremblant
Long glacial lake below the mountain, frozen and snow-covered through most of winter.
Why now September scores 84/100 for comfort, good conditions for being outside.
Chapelle Saint-Bernard
Small white wooden chapel from 1942 at the foot of the village, decorated for Christmas services.
Scandinave Spa Mont-Tremblant
Outdoor Nordic baths, saunas and steam rooms in the forest beside the Diable River, open year-round.
Why now Highs near 67°F and 3.9 in of monthly rain make this an easy outdoor pick.
Nearby in September
- Montréal in September~69 mi · highs 73°F, 3.5 in rain · 3°C (5°F) warmer by day, about as wet
- Vermont in September~150 mi · highs 69°F, 3.6 in rain · similar daytime temperatures, about as wet
- Stowe in September~152 mi · highs 69°F, 3.6 in rain · 1°C (2°F) warmer by day, about as wet
- Québec City in September~166 mi · highs 67°F, 4.3 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Mont-Tremblant in September: quick answers
Is September a good time to visit Mont-Tremblant?
Yes. On the climate data it's one of the best months, scoring 84/100. Expect highs of 67°F (20°C) and 3.9 in (98 mm) of rain. Our Quebec City & Mont-Tremblant route recommends Late Nov – Mar, so September is outside its suggested window.
How hot is Mont-Tremblant in September?
Average highs are 67°F (20°C) and average lows 48°F (9°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Mont-Tremblant in September?
Some: about 3.9 in (98 mm) of rain falls across September on average, the 5th-wettest month of the year. The annual total is about 44.7 in (1136 mm).
What should I pack for Mont-Tremblant in September?
Bring a warm layer for evenings (lows near 48°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Mont-Tremblant
Planning Mont-Tremblant in September?
Share this September plan with your group, poll everyone on dates and keep the packing list in one place.