Early autumn · Weather & things to do
Québec City in September
Québec City cools off: highs slip to 67°F (20°C), from 74°F in August, with lows of 50°F (10°C) and about 4.3 in (109 mm) of rain.
September opens the best stretch on our comfort score, at 83/100 (the top score of the year).
- Avg high
- 67°F (20°C)
- Avg low
- 50°F (10°C)
- Rain
- 4.3 in (109 mm)
- Humidity
- 84%
- Cloud cover
- 57%
- Daylight
- ~12 h 19 min
- Comfort score
- 83/100 · Great
What September feels like
Expect mild afternoons around 67°F (20°C), good for long walks.
Lows average 50°F (10°C).
Some rain is likely, about 4.3 in (109 mm) in the month, so pack for a shower or two.
Plan around September
September is one of Québec City'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 58/100.
- Comfort improves from 71/100 in August to 83/100.
- September sits inside the Jun – Oct window our Montréal, Québec City & Charlevoix route recommends.
- 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 eveningsnights drop to 50°F
- Packable rain jacket or umbrellaabout 4.3 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Québec City in September
With conditions on your side, the picks below favor time outside.
Place D'Youville rink
Free outdoor skating rink just outside the Saint-Jean Gate, with skate rentals and music in the evenings.
Why now September scores 83/100 for comfort, good conditions for being outside.
Château Frontenac & Dufferin Terrace
Landmark hotel above a boardwalk with sweeping views of the St. Lawrence.
Why now Highs near 67°F and 4.3 in of monthly rain make this an easy outdoor pick.
La Citadelle de Québec
Star-shaped fortress still home to the Royal 22e Régiment, with guided tours and summer guard changes.
Bar Le Sacrilège
Easygoing pub on Rue Saint-Jean with a leafy back terrace and local beers.
Why now One to do outside while the weather is on your side.
Le Lapin Sauté
Small Petit-Champlain bistro known for rabbit dishes, cassoulet and a heated terrace.
Plains of Abraham
Battlefields park where the 1759 battle was fought, now lawns and lookouts over the river.
Nearby in September
- Charlevoix in September~65 mi · highs 64°F, 4.1 in rain · 2°C (3°F) cooler by day, about as wet
- Montréal in September~144 mi · highs 73°F, 3.5 in rain · 3°C (5°F) warmer by day, drier
- Mont-Tremblant in September~166 mi · highs 67°F, 3.9 in rain · similar daytime temperatures, about as wet
- Vermont in September~169 mi · highs 69°F, 3.6 in rain · 1°C (2°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~332 m to Québec City's ~58 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Québec City in September: quick answers
Is September a good time to visit Québec City?
Yes. On the climate data it's one of the best months, scoring 83/100. Expect highs of 67°F (20°C) and 4.3 in (109 mm) of rain. September is inside the Jun – Oct window our Montréal, Québec City & Charlevoix route recommends.
How hot is Québec City in September?
Average highs are 67°F (20°C) and average lows 50°F (10°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Québec City in September?
Some: about 4.3 in (109 mm) of rain falls across September on average, the 4th-wettest month of the year. The annual total is about 45.2 in (1147 mm).
What should I pack for Québec City in September?
Bring a warm layer for evenings (nights drop to 50°F), packable rain jacket or umbrella (about 4.3 in of rain) and comfortable walking shoes (most picks involve some walking).
More on Québec City
Routes in season in September
- Montréal, Québec City & Charlevoix Jun – Oct
Planning Québec City in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.