Last updated: June 18, 2025
In May, the average temperature in Saint-Denis-sur-Richelieu, Canada is a pleasant 14°C (57°F). However, temperatures can vary significantly, with a minimum of -2°C (29°F) and a maximum soaring to 35°C (96°F). Prepare for some rain, as the region sees an average of 97 mm (3.8 in) of precipitation across about 12 days. Don't forget, the average humidity hovers around 80%, adding a touch of mugginess to the air!
In May in Saint-Denis-sur-Richelieu, the average temperature is 14°C (57°F). The maximum can reach 35°C (96°F), and the minimum can be as low as -2°C (29°F). Be prepared for a wide range of weather conditions during your travels to Saint-Denis-sur-Richelieu this month.
In Saint-Denis-sur-Richelieu in May, the precipitation amount is 97 mm (3.8 in) spread over 12 days.
In Saint-Denis-sur-Richelieu in May, humidity is 80%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making travel uncomfortable and sticky, as sweat clings to your skin and the air feels heavy with moisture.
In Saint-Denis-sur-Richelieu in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Saint-Denis-sur-Richelieu.
UV Risk Categories
Weather in Saint-Denis-sur-Richelieu varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saint-Denis-sur-Richelieu, 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 | -7°C (19°F) | 82 mm (3.2 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 85 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 121 mm (4.8 inches) | 85% | very high |
| May Weather | 14°C (57°F) | 97 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 101 mm (4.0 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 96 mm (3.8 inches) | 76% | very high |
| August Weather | 21°C (70°F) | 111 mm (4.4 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 67 mm (2.6 inches) | 78% | high |
| October Weather | 10°C (50°F) | 132 mm (5.2 inches) | 86% | moderate |
| November Weather | 1°C (34°F) | 117 mm (4.6 inches) | 88% | moderate |
| December Weather | -5°C (23°F) | 90 mm (3.6 inches) | 89% | low |