Laurentides (Boisbriand)
September
Weather in Laurentides for September 2026
Your guide to Laurentides weather in September - trends and predictions
Until now, September 2026 in Laurentides is slightly cooler than the historical average by 0.8 °C.
Expect cooler weather in the next days in Laurentides with the forecast suggesting a temperature of 19.3 °C, lower than the historical average.
In general, the average temperature in Laurentides at the beginning of September is 24.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °C by the end of September.
The climate of Laurentides in September is notably wet, with an average of 13 rainy days, and a total of 140.7 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
13
Rainy days
0
Snow days
22°/12°
Temperatures
14 km/h
Avg max wind
73 %
Avg humidity
Laurentides Weather September
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Temperatures trend during September in Laurentides
See the weather trend as well as the moving average line
September weather in Laurentides day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 24° /12° | 1.9 mm | 5 | |
| 2 Sept. |  Overcast | 24° /13° | 39.2 mm | 5 | |
| 3 Sept. | Fog | 25° /14° | 10 mm | 6 | |
| 4 Sept. | Mist | 26° /15° | 8.7 mm | 6 | |
| 5 Sept. | Mist | 25° /14° | 8.9 mm | 6 | |
| 6 Sept. | Mist | 24° /15° | 3.7 mm | 6 | |
| 7 Sept. |  Light rain shower | 23° /12° | 5.8 mm | 5 | |
| 8 Sept. | Light rain shower | 21° /11° | 12.6 mm | 4 | |
| 9 Sept. |  Cloudy | 21° /9° | 4.8 mm | 4 | |
| 10 Sept. |  Moderate rain | 22° /11° | 1.6 mm | 6 | |
| 11 Sept. |  Sunny | 20° /10° | 0 mm | 5.2 | |
| 12 Sept. | Overcast | 24° /10° | 0 mm | 5.4 | |
| 13 Sept. | Overcast | 25° /16° | 4.2 mm | 3.7 | |
| 14 Sept. | Sunny | 18° /10° | 0 mm | 4.8 | |
| 15 Sept. | Overcast | 18° /8° | 0.8 mm | 4 | |
| 16 Sept. | Overcast | 21° /15° | 19.8 mm | 5 | |
| 17 Sept. | Overcast | 18° /14° | 0.3 mm | 4 | |
| 18 Sept. | Overcast | 17° /10° | 0 mm | 4 | |
| 19 Sept. | Sunny | 17° /8° | 0 mm | 5 | |
| 20 Sept. | Sunny | 18° /8° | 0 mm | 5 | |
| 21 Sept. | Sunny | 21° /11° | 0 mm | 6 | |
| 22 Sept. | Overcast | 20° /11° | 0 mm | 5 | |
| 23 Sept. | Overcast | 13° /10° | 0.5 mm | 4 | |
| 24 Sept. | Sunny | 20° /8° | 0 mm | 5 | |
| 25 Sept. | Sunny | 18° /11° | 47 mm | 5 | |
| 26 Sept. |  Partly cloudy | 20° /10° | 40.3 mm | 5 | |
| 27 Sept. | Partly cloudy | 20° /8° | 0 mm | 6 | |
| 28 Sept. | Overcast | 21° /11° | 0 mm | 5 | |
| 29 Sept. | Mist | 22° /10° | 0 mm | 5 | |
| 30 Sept. | Mist | 21° /10° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Laurentides 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 Laurentides forecast closer to your planned date for the most up-to-date weather information.
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Laurentides in September - FAQ
What are the expected maximum and minimum temperatures in Laurentides 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 Laurentides during September?
Significant rainfall exceeding 140.7 mm is expected in Laurentides during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Laurentides during September?
The average wind speed in Laurentides during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Laurentides
Explore the daily rainfall trends and prepare for Laurentidess September weather 💧
Typically, Laurentides has 13 rainy days in September with a total of 140.7 mm of rainfall.
UV exposure in Laurentides during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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