Verdict: Excellent month
Quebec City Weather in September
September hits the sweet spot in Quebec City — highs around 20°C (68°F), ideal for a full day on foot. Expect showers on roughly 9 days of the month — rarely trip-ruining, worth planning around. Overall, September is one of the best months of the year to be in Quebec City.
Average high
20°C / 68°F
Average low
11°C / 52°F
Rain days
~9
Precipitation
107 mm
What to pack for Quebec City in September
- Layers — t-shirts under a light jacket or sweater
- A packable rain shell or compact umbrella earns its space
- Comfortable walking shoes — every guide on this site assumes you'll use them
September against the rest of the year
Warmest in Quebec City: Jul (25°C / 77°F) · Coolest: Jan (-6°C / 21°F) · Wettest: Jul (~17 rain days)
-6°
-14°
Jan
-4°
-14°
Feb
2°
-7°
Mar
9°
-1°
Apr
18°
7°
May
23°
13°
Jun
25°
16°
Jul
24°
15°
Aug
20°
11°
Sep
13°
5°
Oct
5°
-3°
Nov
-1°
-10°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)