Last updated: June 18, 2025
In September, the average temperature in Terrebonne, Canada hovers around 16°C (61°F), offering a pleasant climate for outdoor activities. Expect a minimum chill of 1°C (33°F) and a maximum warmth of 31°C (89°F). With an average precipitation of 75 mm (3.0 in) spread over 9 days, it’s wise to be prepared for some rain. Moreover, the average humidity level is a comfortable 78%, creating a refreshing atmosphere for visitors.
In September in Terrebonne, the average temperature is 16°C (61°F). Maximums can reach 31°C (89°F), while minimums can drop to as low as 1°C (33°F). This diverse temperature range makes Terrebonne an ideal destination for travelers seeking both warmth and cooler experiences during their visit.
In Terrebonne in September, the precipitation amount is 75 mm (3.0 in) distributed over 9 days.
In Terrebonne in September, humidity is 78%. With an average temperature of 16°C (61°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as it clings to your skin and creates a heavy atmosphere that can drain your energy.
In Terrebonne 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 Terrebonne.
UV Risk Categories
Weather in Terrebonne varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Terrebonne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 84 mm (3.3 inches) | 93% | low |
| February Weather | -8°C (19°F) | 86 mm (3.4 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 87 mm (3.4 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 122 mm (4.8 inches) | 85% | high |
| May Weather | 13°C (56°F) | 100 mm (3.9 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 101 mm (4.0 inches) | 74% | very high |
| July Weather | 22°C (71°F) | 101 mm (4.0 inches) | 76% | very high |
| August Weather | 20°C (69°F) | 102 mm (4.0 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 75 mm (3.0 inches) | 78% | high |
| October Weather | 9°C (49°F) | 129 mm (5.1 inches) | 86% | moderate |
| November Weather | 1°C (33°F) | 113 mm (4.5 inches) | 88% | moderate |
| December Weather | -6°C (22°F) | 92 mm (3.6 inches) | 89% | low |