Last updated: June 18, 2025
In Riviere-Rouge, Canada, the average temperature in September hovers around 13°C (56°F), but be prepared for a range as low as -3°C (28°F) and soaring up to 30°C (86°F). With about 114 mm (4.5 in) of precipitation spread over 11 days, you might want to bring an umbrella! The air is also quite humid, with an average humidity of 78%, making it a unique month to experience the local climate.
In September in Riviere-Rouge, the average temperature is 13°C (56°F). Maximum temperatures can reach 30°C (86°F), while minimums can dip as low as -3°C (28°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Riviere-Rouge in September, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.
In Riviere-Rouge in September, humidity is 78%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities a bit uncomfortable, creating a heavy atmosphere that clings to the skin, urging travelers to dress in layers for warmth and comfort.
In Riviere-Rouge in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Riviere-Rouge.
UV Risk Categories
Weather in Riviere-Rouge varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Riviere-Rouge, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -12°C (11°F) | 75 mm (3.0 inches) | 95% | low |
| February Weather | -10°C (14°F) | 83 mm (3.2 inches) | 94% | moderate |
| March Weather | -5°C (23°F) | 93 mm (3.7 inches) | 90% | moderate |
| April Weather | 2°C (36°F) | 114 mm (4.5 inches) | 86% | very high |
| May Weather | 11°C (52°F) | 110 mm (4.3 inches) | 77% | very high |
| June Weather | 16°C (61°F) | 115 mm (4.5 inches) | 71% | very high |
| July Weather | 19°C (67°F) | 123 mm (4.9 inches) | 79% | very high |
| August Weather | 18°C (64°F) | 118 mm (4.7 inches) | 78% | very high |
| September Weather | 13°C (56°F) | 114 mm (4.5 inches) | 78% | high |
| October Weather | 7°C (44°F) | 123 mm (4.9 inches) | 87% | moderate |
| November Weather | -2°C (29°F) | 109 mm (4.3 inches) | 90% | moderate |
| December Weather | -9°C (16°F) | 99 mm (3.9 inches) | 93% | low |