Mont-Royal
September
Weather in Mont-Royal for September 2025
Your guide to Mont-Royal weather in September - trends and predictions
In general, the average temperature in Mont-Royal at the beginning of September is 25.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.9 °C by the end of September.
Mont-Royal experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 149.1 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
22°/12°
Temperatures
14 km/h
Avg max wind
73 %
Avg humidity
Mont-Royal Weather September
Move between months or click on a day
Temperatures trend during September in Mont-Royal
See the weather trend as well as the moving average line
September weather in Mont-Royal day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 24° /11° | 3.1 mm | 5 | |
| 2 Sept. | Mist | 22° /11° | 0 mm | 5 | |
| 3 Sept. | Mist | 24° /12° | 0 mm | 6 | |
| 4 Sept. | Mist | 27° /15° | 0 mm | 7 | |
| 5 Sept. | Mist | 28° /17° | 0 mm | 7 | |
| 6 Sept. | Mist | 27° /18° | 0.1 mm | 6 | |
| 7 Sept. |  Patchy light rain with thunder | 24° /14° | 8.3 mm | 5 | |
| 8 Sept. |  Light rain shower | 20° /12° | 20.8 mm | 5 | |
| 9 Sept. |  Cloudy | 20° /9° | 0 mm | 5 | |
| 10 Sept. |  Heavy rain | 20° /12° | 4.8 mm | 5 | |
| 11 Sept. |  Overcast | 22° /11° | 2.7 mm | 6 | |
| 12 Sept. | Overcast | 24° /13° | 1.4 mm | 6 | |
| 13 Sept. |  Moderate rain | 22° /14° | 7.7 mm | 6 | |
| 14 Sept. | Overcast | 21° /13° | 0 mm | 6 | |
| 15 Sept. | Mist | 24° /12° | 0 mm | 6 | |
| 16 Sept. | Overcast | 24° /15° | 0 mm | 6 | |
| 17 Sept. |  Partly cloudy | 27° /14° | 0 mm | 7 | |
| 18 Sept. | Light rain shower | 24° /14° | 0.8 mm | 6 | |
| 19 Sept. | Heavy rain | 23° /15° | 9.8 mm | 5 | |
| 20 Sept. | Cloudy | 23° /12° | 0 mm | 6 | |
| 21 Sept. | Mist | 21° /9° | 0 mm | 5 | |
| 22 Sept. | Mist | 22° /11° | 0 mm | 5 | |
| 23 Sept. | Mist | 20° /11° | 0 mm | 5 | |
| 24 Sept. | Partly cloudy | 23° /12° | 0 mm | 6 | |
| 25 Sept. |  Sunny | 18° /10° | 16.8 mm | 5 | |
| 26 Sept. | Partly cloudy | 19° /9° | 72.7 mm | 5 | |
| 27 Sept. | Mist | 20° /9° | 0 mm | 5 | |
| 28 Sept. | Mist | 21° /11° | 0 mm | 5 | |
| 29 Sept. | Mist | 21° /10° | 0 mm | 5 | |
| 30 Sept. | Mist | 24° /10° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Mont-Royal 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 Mont-Royal forecast closer to your planned date for the most up-to-date weather information.
Change Month
Mont-Royal in September - FAQ
What are the expected maximum and minimum temperatures in Mont-Royal during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Mont-Royal during September?
Significant rainfall exceeding 149.1 mm is expected in Mont-Royal during September, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Mont-Royal during September?
The average wind speed in Mont-Royal during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Mont-Royal
Explore the daily rainfall trends and prepare for Mont-Royals September weather 💧
UV exposure in Mont-Royal during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Mont-Royal weather pages
You are here
Where is Mont-Royal?Get accurate weather forecasts for Mont-Royal, located at latitude 45.517 and longitude -73.649. Stay updated with localized weather information tailored for Mont-Royal.
Found a mistake?
We appreciate your attention to details. Tell us here.