Thetford-Mines
September
Weather in Thetford-Mines for September 2025
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 23.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °C by the end of September.
Thetford-Mines sees moderate rainfall in September, averaging 10 rainy days.
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20
Dry days
10
Rainy days
0
Snow days
21°/9°
Temperatures
11 km/h
Avg max wind
83 %
Avg humidity
Thetford-Mines in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 18° | 3 21° | 4 25° | 5 26° | 6 26° | 7 25° |
| 8  18° | 9 18° | 10 15° | 11 20° | 12 21° | 13 21° | 14 20° |
| 15 21° | 16  20° | 17 23° | 18 21° | 19  19° | 20 17° | 21 18° |
| 22 19° | 23 18° | 24 19° | 25  15° | 26 15° | 27  18° | 28 18° |
| 29 19° | 30  19° |
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Temperatures trend during September in Thetford-Mines
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. | Mist | 23° /6° | 3.5 mm | 5 | |
| 2 Sept. | Mist | 18° /7° | 0.4 mm | 4 | |
| 3 Sept. | Fog | 21° /7° | 0 mm | 5 | |
| 4 Sept. | Mist | 25° /11° | 0 mm | 6 | |
| 5 Sept. | Fog | 26° /14° | 0 mm | 6 | |
| 6 Sept. | Fog | 26° /14° | 0.8 mm | 6 | |
| 7 Sept. | Fog | 25° /14° | 4.7 mm | 6 | |
| 8 Sept. | Light rain shower | 18° /10° | 4.5 mm | 5 | |
| 9 Sept. | Fog | 18° /8° | 0 mm | 4 | |
| 10 Sept. | Light rain shower | 15° /7° | 3.6 mm | 4 | |
| 11 Sept. | Fog | 20° /9° | 14.1 mm | 5 | |
| 12 Sept. | Fog | 21° /10° | 0.3 mm | 5 | |
| 13 Sept. | Light rain shower | 21° /12° | 4.1 mm | 5 | |
| 14 Sept. | Mist | 20° /11° | 0.1 mm | 5 | |
| 15 Sept. | Fog | 21° /7° | 0 mm | 5 | |
| 16 Sept. | Moderate rain | 20° /11° | 6.8 mm | 5 | |
| 17 Sept. | Fog | 23° /11° | 0.2 mm | 6 | |
| 18 Sept. | Light rain shower | 21° /13° | 1.3 mm | 5 | |
| 19 Sept. | Heavy rain | 19° /11° | 29.5 mm | 4 | |
| 20 Sept. | Fog | 17° /11° | 0.1 mm | 4 | |
| 21 Sept. | Mist | 18° /8° | 0 mm | 4 | |
| 22 Sept. | Mist | 19° /7° | 0 mm | 5 | |
| 23 Sept. | Mist | 18° /9° | 0 mm | 4 | |
| 24 Sept. | Mist | 19° /8° | 0 mm | 5 | |
| 25 Sept. | Cloudy | 15° /8° | 0 mm | 4 | |
| 26 Sept. | Mist | 15° /6° | 60.2 mm | 4 | |
| 27 Sept. | Sunny | 18° /8° | 0 mm | 5 | |
| 28 Sept. | Mist | 18° /7° | 0 mm | 5 | |
| 29 Sept. | Mist | 19° /8° | 0 mm | 5 | |
| 30 Sept. | Overcast | 19° /9° | 0 mm | 5 | |
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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.
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 21° and cooler nights around 9°. 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 130 mm is expected in Thetford-Mines during September, occurring over more than 10 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 11 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 ☀️
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