Thetford-Mines Weather in August
What's the weather like in Thetford-Mines (Quebec) in August 2025?
The climate in Thetford-Mines during August can be summarized as mild and wet.
August is in the summer in Thetford-Mines and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 12°C (53°F) is normal.
| Daytime temperature | 21.7°C 71.1°F |
|---|---|
| Nightly temperature | 11.9°C 53.4°F |
| Average temperature | 16.8°C 62.2°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 146 mm 5.7 ins |
| Rainy days | 15 days |
| Sea temperature | 15.6°C 60°F |
| Humidity | 78% |
| Windspeed | 9kph 6 mph |
On average August is the wettest month of the year in Thetford-Mines with around 146mm 5.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
August temperatures in Thetford-Mines
August rainfall
August hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Thetford-Mines in August 2025.
Other monthly averages
Best places to visit in August
Thetford-Mines weather stats
| Hottest month: | July | 23°C 73.4°F |
|---|---|---|
| Driest month: | February | 68mm 2.7ins |
| Sunniest month: | July | 8.1hrs |
| Coldest month: | January | -8.1°C 17.4°F |
| Wettest month: | August | 146mm 5.7ins |
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