Capitale-Nationale (Québec)
September
Weather in Capitale-Nationale for September 2025
Your guide to Capitale-Nationale weather in September - trends and predictions
In general, the average temperature in Capitale-Nationale at the beginning of September is 23.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.1 °C by the end of September.
Capitale-Nationale sees moderate rainfall in September, averaging 10 rainy days.
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20
Dry days
10
Rainy days
0
Snow days
21°/10°
Temperatures
13 km/h
Avg max wind
83 %
Avg humidity
Capitale-Nationale in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  19° | 3 22° | 4 25° | 5 25° | 6  26° | 7  25° |
| 8  19° | 9 19° | 10  17° | 11 20° | 12 20° | 13  21° | 14 18° |
| 15 22° | 16 21° | 17 25° | 18 23° | 19 19° | 20 18° | 21 19° |
| 22 20° | 23 19° | 24 20° | 25  15° | 26 15° | 27 19° | 28 19° |
| 29 19° | 30 20° |
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Temperatures trend during September in Capitale-Nationale
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 23° /7° | 4.4 mm | 6 | |
| 2 Sept. | Mist | 19° /8° | 0.1 mm | 4 | |
| 3 Sept. | Mist | 22° /9° | 0 mm | 6 | |
| 4 Sept. | Mist | 25° /12° | 0 mm | 6 | |
| 5 Sept. | Fog | 25° /14° | 0 mm | 6 | |
| 6 Sept. | Patchy light rain with thunder | 26° /14° | 0.4 mm | 6 | |
| 7 Sept. | Moderate or heavy rain shower | 25° /13° | 7.3 mm | 6 | |
| 8 Sept. | Light rain shower | 19° /11° | 6.6 mm | 5 | |
| 9 Sept. | Mist | 19° /9° | 0.2 mm | 5 | |
| 10 Sept. | Moderate rain | 17° /8° | 1.7 mm | 4 | |
| 11 Sept. | Mist | 20° /9° | 3.3 mm | 5 | |
| 12 Sept. | Mist | 20° /11° | 0 mm | 5 | |
| 13 Sept. | Heavy rain | 21° /13° | 19.8 mm | 5 | |
| 14 Sept. | Fog | 18° /11° | 0 mm | 5 | |
| 15 Sept. | Mist | 22° /8° | 0 mm | 5 | |
| 16 Sept. | Moderate rain | 21° /13° | 2.2 mm | 5 | |
| 17 Sept. | Mist | 25° /12° | 0.1 mm | 6 | |
| 18 Sept. | Fog | 23° /15° | 0.5 mm | 6 | |
| 19 Sept. | Moderate rain | 19° /13° | 13.8 mm | 5 | |
| 20 Sept. | Fog | 18° /11° | 0.4 mm | 4 | |
| 21 Sept. | Mist | 19° /8° | 0 mm | 5 | |
| 22 Sept. | Mist | 20° /7° | 0 mm | 6 | |
| 23 Sept. | Mist | 19° /8° | 0 mm | 5 | |
| 24 Sept. | Mist | 20° /8° | 0 mm | 5 | |
| 25 Sept. | Sunny | 15° /9° | 0.9 mm | 4 | |
| 26 Sept. | Partly cloudy | 15° /7° | 59.4 mm | 4 | |
| 27 Sept. | Sunny | 19° /9° | 0 mm | 5 | |
| 28 Sept. | Mist | 19° /8° | 0 mm | 5 | |
| 29 Sept. | Mist | 19° /7° | 0 mm | 5 | |
| 30 Sept. | Mist | 20° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Capitale-Nationale 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 Capitale-Nationale forecast closer to your planned date for the most up-to-date weather information.
Capitale-Nationale in September - FAQ
What are the expected maximum and minimum temperatures in Capitale-Nationale during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Capitale-Nationale during September?
Significant rainfall exceeding 101.3 mm is expected in Capitale-Nationale during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Capitale-Nationale during September?
The average wind speed in Capitale-Nationale during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Capitale-Nationale
Explore the daily rainfall trends and prepare for Capitale-Nationales September weather 💧
UV exposure in Capitale-Nationale during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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