Thetford-Mines
September
Weather in Thetford-Mines for September 2026
Your guide to Thetford-Mines weather in September - trends and predictions
In general, the average temperature in Thetford-Mines at the beginning of September is 22.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °C by the end of September.
With an average of 4 rainy days, Thetford-Mines experiences minimal rainfall in September.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
22°/7°
Temperatures
12 km/h
Avg max wind
81 %
Avg humidity
Thetford-Mines Weather September
Move between months or click on a day
Temperatures trend during September in Thetford-Mines
See the weather trend as well as the moving average line
September weather in Thetford-Mines day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Mist | 23° /7° | 2.3 mm | 5 | |
| 2 Sept. | Mist | 19° /9° | 1 mm | 4 | |
| 3 Sept. | Fog | 21° /9° | 1.1 mm | 5 | |
| 4 Sept. | Mist | 25° /12° | 0 mm | 6 | |
| 5 Sept. | Mist | 25° /13° | 0 mm | 5 | |
| 6 Sept. | Fog | 24° /13° | 12.7 mm | 5 | |
| 7 Sept. | Fog | 22° /12° | 3.1 mm | 5 | |
| 8 Sept. |  Light rain shower | 17° /8° | 3 mm | 4 | |
| 9 Sept. | Fog | 19° /7° | 0 mm | 4 | |
| 10 Sept. | Light rain shower | 18° /8° | 2.4 mm | 4 | |
| 11 Sept. | Fog | 19° /9° | 9.4 mm | 4 | |
| 12 Sept. | Fog | 19° /7° | 0.2 mm | 4 | |
| 13 Sept. | Light rain shower | 20° /10° | 2.7 mm | 4 | |
| 14 Sept. | Fog | 19° /10° | 0 mm | 4 | |
| 15 Sept. | Fog | 20° /8° | 0 mm | 5 | |
| 16 Sept. | Fog | 21° /9° | 4.5 mm | 5 | |
| 17 Sept. | Fog | 23° /10° | 0.1 mm | 5 | |
| 18 Sept. | Light rain shower | 21° /13° | 1.4 mm | 5 | |
| 19 Sept. |  Heavy rain | 17° /9° | 19.6 mm | 4 | |
| 20 Sept. | Fog | 16° /8° | 0.1 mm | 4 | |
| 21 Sept. | Mist | 18° /6° | 0 mm | 4 | |
| 22 Sept. | Mist | 19° /6° | 0.3 mm | 4 | |
| 23 Sept. | Mist | 18° /10° | 0 mm | 4 | |
| 24 Sept. | Mist | 18° /10° | 0 mm | 4 | |
| 25 Sept. |  Cloudy | 15° /9° | 11.8 mm | 4 | |
| 26 Sept. | Mist | 16° /7° | 41.6 mm | 4 | |
| 27 Sept. |  Sunny | 18° /8° | 0 mm | 5 | |
| 28 Sept. | Mist | 19° /8° | 0 mm | 4 | |
| 29 Sept. | Mist | 20° /9° | 0 mm | 5 | |
| 30 Sept. |  Overcast | 17° /8° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Thetford-Mines 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 Thetford-Mines forecast closer to your planned date for the most up-to-date weather information.
Change Month
Thetford-Mines in September - FAQ
What are the expected maximum and minimum temperatures in Thetford-Mines during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Thetford-Mines during September?
Significant rainfall exceeding 310.1 mm is expected in Thetford-Mines during September, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Thetford-Mines during September?
The average wind speed in Thetford-Mines during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Thetford-Mines
Explore the daily rainfall trends and prepare for Thetford-Miness September weather 💧
UV exposure in Thetford-Mines during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Thetford-Mines weather pages
You are here
Where is Thetford-Mines?Get accurate weather forecasts for Thetford-Mines, located at latitude 46.094 and longitude -71.305. Stay updated with localized weather information tailored for Thetford-Mines.
Found a mistake?
We appreciate your attention to details. Tell us here.