Last updated: June 18, 2025
In September, the average temperature in Coteau-du-Lac, Canada is a mild 17°C (62°F), with minimums dipping to 1°C (34°F) and maximums reaching up to 32°C (90°F). Expect about 67 mm (2.6 in) of precipitation spread over 8 days, contributing to an average humidity of 78%.
In September, in Coteau-du-Lac, the average temperature is 17°C (62°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 1°C (34°F). This makes Coteau-du-Lac an ideal destination for travelers seeking a range of experiences, from warm days to cool, refreshing nights.
In Coteau-du-Lac in September, the total precipitation amount is 67 mm (2.6 in) over the course of 8 days.
In Coteau-du-Lac in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.
In Coteau-du-Lac 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 Coteau-du-Lac.
UV Risk Categories
Weather in Coteau-du-Lac varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Coteau-du-Lac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (19°F) | 85 mm (3.3 inches) | 93% | low |
| February Weather | -6°C (21°F) | 85 mm (3.3 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 86 mm (3.4 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 114 mm (4.5 inches) | 85% | high |
| May Weather | 14°C (57°F) | 105 mm (4.1 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 95 mm (3.7 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 97 mm (3.8 inches) | 76% | very high |
| August Weather | 21°C (70°F) | 92 mm (3.6 inches) | 75% | very high |
| September Weather | 17°C (62°F) | 67 mm (2.6 inches) | 78% | high |
| October Weather | 10°C (50°F) | 130 mm (5.1 inches) | 86% | moderate |
| November Weather | 2°C (35°F) | 110 mm (4.3 inches) | 88% | moderate |
| December Weather | -4°C (25°F) | 85 mm (3.3 inches) | 89% | low |