Last updated: June 18, 2025
In Dolbeau-Mistassini, Canada, the average temperature in September hovers around 13°C (55°F). Expect a chilly minimum of -4°C (26°F), while it can soar to a warm 30°C (86°F). The area sees 146 mm (5.7 in) of precipitation spread over about 13 days, resulting in an average humidity of 85%. Plan your activities accordingly to enjoy the varied weather!
In September in Dolbeau-Mistassini, the average temperature is 13°C (55°F). Maximums can reach 30°C (86°F), and minimums can be as low as -4°C (26°F). Be prepared for a wide range of temperatures when traveling during this time, so pack accordingly!
In Dolbeau-Mistassini in September, the precipitation amount is 146 mm (5.7 in) over the course of 13 days.
In Dolbeau-Mistassini in September, humidity is 85%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making even short walks feel exhausting and urging travelers to seek shade and refreshment frequently.
In Dolbeau-Mistassini in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Dolbeau-Mistassini, you can refer to this Hourly UV Index in Dolbeau-Mistassini.
UV Risk Categories
Weather in Dolbeau-Mistassini varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dolbeau-Mistassini, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -15°C (6°F) | 59 mm (2.3 inches) | 96% | low |
| February Weather | -13°C (8°F) | 60 mm (2.3 inches) | 94% | moderate |
| March Weather | -7°C (20°F) | 76 mm (3.0 inches) | 91% | moderate |
| April Weather | 1°C (35°F) | 83 mm (3.3 inches) | 90% | high |
| May Weather | 10°C (50°F) | 96 mm (3.8 inches) | 80% | very high |
| June Weather | 16°C (61°F) | 87 mm (3.4 inches) | 73% | very high |
| July Weather | 19°C (67°F) | 125 mm (4.9 inches) | 81% | very high |
| August Weather | 18°C (64°F) | 138 mm (5.4 inches) | 84% | very high |
| September Weather | 13°C (55°F) | 146 mm (5.7 inches) | 85% | high |
| October Weather | 6°C (43°F) | 115 mm (4.5 inches) | 89% | moderate |
| November Weather | -3°C (27°F) | 95 mm (3.7 inches) | 91% | low |
| December Weather | -11°C (12°F) | 83 mm (3.3 inches) | 97% | low |