Saint-Jérôme
September
Weather in Saint-Jérôme for September 2025
Your guide to Saint-Jérôme weather in September - trends and predictions
Until now, September 2025 in Saint-Jérôme is slightly cooler than the historical average by -1.1 °C.
The forecast for the next days in Saint-Jérôme predicts temperatures to be around 23 °C, close to the historical average.
In general, the average temperature in Saint-Jérôme at the beginning of September is 24 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 21.3 °C by the end of September.
Saint-Jérôme experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 103.8 mm.
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Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
22°/11°
Temperatures
14 km/h
Avg max wind
75 %
Avg humidity
Saint-Jérôme Weather September
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Temperatures trend during September in Saint-Jérôme
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September weather in Saint-Jérôme day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 24° /11° | 2 mm | 6 | |
| 2 Sept. |  Patchy rain possible | 22° /11° | 0.1 mm | 5 | |
| 3 Sept. |  Partly cloudy | 24° /12° | 0 mm | 6 | |
| 4 Sept. |  Fog | 26° /13° | 13.3 mm | 6 | |
| 5 Sept. | Fog | 27° /13° | 5.1 mm | 6 | |
| 6 Sept. |  Overcast | 24° /15° | 0.1 mm | 5 | |
| 7 Sept. |  Patchy light rain with thunder | 21° /12° | 8.4 mm | 5 | |
| 8 Sept. | Light rain shower | 17° /9° | 4.2 mm | 4 | |
| 9 Sept. | Sunny | 21° /7° | 0 mm | 5 | |
| 10 Sept. | Overcast | 21° /9° | 0 mm | 5 | |
| 11 Sept. | Overcast | 22° /10° | 0.4 mm | 5 | |
| 12 Sept. | Partly cloudy | 21° /10° | 1.1 mm | 5 | |
| 13 Sept. |  Moderate rain | 21° /11° | 2.8 mm | 5 | |
| 14 Sept. | Mist | 21° /11° | 0 mm | 5 | |
| 15 Sept. | Sunny | 23° /12° | 0 mm | 6 | |
| 16 Sept. | Sunny | 26° /12° | 0 mm | 1.2 | |
| 17 Sept. | Sunny | 27° /14° | 0 mm | 1.2 | |
| 18 Sept. | Moderate rain | 25° /15° | 8.5 mm | 1.1 | |
| 19 Sept. | Moderate rain | 18° /6° | 11.9 mm | 1.1 | |
| 20 Sept. | Sunny | 18° /3° | 0 mm | 0 | |
| 21 Sept. | Sunny | 22° /4° | 0 mm | 4 | |
| 22 Sept. | Patchy rain possible | 26° /14° | 0.2 mm | 4 | |
| 23 Sept. | Sunny | 31° /17° | 0 mm | 6 | |
| 24 Sept. | Sunny | 27° /15° | 0 mm | 6 | |
| 25 Sept. | Sunny | 21° /9° | 0 mm | 5 | |
| 26 Sept. | Sunny | 17° /4° | 0 mm | 4 | |
| 27 Sept. | Sunny | 18° /7° | 0 mm | 4 | |
| 28 Sept. | Sunny | 22° /7° | 0 mm | 4 | |
| 29 Sept. | Sunny | 21° /8° | 0 mm | 4 | |
| 30 Sept. | Partly cloudy | 23° /12° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Saint-Jérôme 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 Saint-Jérôme forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint-Jérôme in September - FAQ
What are the expected maximum and minimum temperatures in Saint-Jérôme during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saint-Jérôme during September?
Significant rainfall exceeding 103.8 mm is expected in Saint-Jérôme during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint-Jérôme during September?
The average wind speed in Saint-Jérôme during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Saint-Jérôme
Explore the daily rainfall trends and prepare for Saint-Jérômes September weather 💧
UV exposure in Saint-Jérôme during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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