Québec
September
Weather in Québec for September 2026
Your guide to Québec weather in September - trends and predictions
Until now, September 2026 in Québec is cooler than usual, with temperatures averaging 19.2 °C, this is 2.1 °C below the typical seasonal average.
The forecast for the next days in Québec predicts a temperature of 16.3 °C, which is cooler than the historical average.
In general, the average temperature in Québec at the beginning of September is 21.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.3 °C by the end of September.
Québec experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 115.7 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
22
Dry days
8
Rainy days
0
Snow days
19°/10°
Temperatures
14 km/h
Avg max wind
78 %
Avg humidity
Québec Weather September
Move between months or click on a day
What’s the Weather Like in Québec This September?
Discover the average temperatures and weather trends across Québec’s cities this September.
Temperatures trend during September in Québec
See the weather trend as well as the moving average line
September weather in Québec day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 21° /10° | 1.6 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 21° /10° | 0.4 mm | 5 | |
| 3 Sept. |  Mist | 23° /12° | 12.7 mm | 5 | |
| 4 Sept. |  Partly cloudy | 23° /12° | 11.8 mm | 5 | |
| 5 Sept. | Overcast | 21° /12° | 4.2 mm | 4 | |
| 6 Sept. |  Moderate or heavy rain shower | 22° /11° | 9.7 mm | 5 | |
| 7 Sept. | Patchy rain possible | 22° /10° | 2.5 mm | 5 | |
| 8 Sept. | Light rain shower | 20° /10° | 4.6 mm | 5 | |
| 9 Sept. | Overcast | 20° /9° | 1.4 mm | 4 | |
| 10 Sept. |  Heavy rain at times | 20° /10° | 12.8 mm | 5 | |
| 11 Sept. | Partly cloudy | 20° /10° | 1.1 mm | 5 | |
| 12 Sept. | Overcast | 21° /9° | 0 mm | 5.3 | |
| 13 Sept. | Light rain shower | 19° /14° | 5.9 mm | 1.1 | |
| 14 Sept. |  Sunny | 14° /8° | 0.1 mm | 3.4 | |
| 15 Sept. | Overcast | 19° /5° | 0 mm | 4 | |
| 16 Sept. | Overcast | 20° /13° | 1.1 mm | 6 | |
| 17 Sept. | Overcast | 15° /9° | 0 mm | 3 | |
| 18 Sept. | Overcast | 9° /6° | 10 mm | 2 | |
| 19 Sept. | Overcast | 11° /7° | 0 mm | 3 | |
| 20 Sept. | Sunny | 18° /8° | 0 mm | 5 | |
| 21 Sept. | Sunny | 17° /6° | 0 mm | 5 | |
| 22 Sept. | Sunny | 19° /7° | 0 mm | 5 | |
| 23 Sept. | Partly cloudy | 20° /9° | 1 mm | 5 | |
| 24 Sept. | Patchy rain possible | 15° /7° | 5.3 mm | 4 | |
| 25 Sept. |  Cloudy | 11° /5° | 2.2 mm | 3 | |
| 26 Sept. | Patchy rain possible | 18° /9° | 25.5 mm | 4 | |
| 27 Sept. | Sunny | 18° /8° | 1.5 mm | 5 | |
| 28 Sept. | Cloudy | 18° /8° | 0.2 mm | 4 | |
| 29 Sept. | Patchy rain possible | 17° /7° | 0.2 mm | 4 | |
| 30 Sept. | Moderate rain at times | 17° /7° | 0.4 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Québec 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 Québec forecast closer to your planned date for the most up-to-date weather information.
Change Month
Québec in September - FAQ
What are the expected maximum and minimum temperatures in Québec 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 Québec during September?
Significant rainfall exceeding 115.7 mm is expected in Québec during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Québec during September?
The average wind speed in Québec during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Québec
Explore the daily rainfall trends and prepare for Québecs September weather 💧
Typically, Québec has 8 rainy days in September with a total of 115.7 mm of rainfall.
UV exposure in Québec during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in Quebec
Select a province for an accurate weather forecast
Top locations in Quebec
Select a location for an accurate weather forecast
More Locations Quick links
More Québec weather pages
You are here
Where is Québec?Get accurate weather forecasts for Québec, located at latitude 46.812 and longitude -71.215. Stay updated with localized weather information tailored for Québec.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.