Last updated: June 18, 2025
In May, the average temperature in St. Jean Baptiste, Canada hovers around 12°C (55°F). Expect a broad temperature range, with minimums dipping to -6°C (22°F) and maximums soaring to 32°C (89°F). Rainfall is likely, with about 42 mm (1.7 in) expected over 7 days, and the average humidity sits at a cozy 74%.
In May in St. Jean Baptiste, the average temperature is 12°C (55°F). The maximum can reach 32°C (89°F), and the minimum can be as low as -6°C (22°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.
In St. Jean Baptiste in May, the total precipitation amount is 42 mm (1.7 in) over the course of 7 days.
In St. Jean Baptiste in May, humidity is 74%. With an average temperature of 12°C (55°F), this humidity feels like a cool, damp chill clinging to your skin, making outdoor activities less enjoyable and encouraging you to seek sheltered spots or cozy cafes to stay warm while exploring the area.
In St. Jean Baptiste in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in St. Jean Baptiste.
UV Risk Categories
Weather in St. Jean Baptiste varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in St. Jean Baptiste, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -14°C (8°F) | 17 mm (0.7 inches) | 94% | low |
| February Weather | -15°C (5°F) | 17 mm (0.7 inches) | 91% | moderate |
| March Weather | -5°C (23°F) | 19 mm (0.7 inches) | 90% | moderate |
| April Weather | 3°C (37°F) | 27 mm (1.1 inches) | 81% | high |
| May Weather | 12°C (55°F) | 42 mm (1.7 inches) | 74% | very high |
| June Weather | 19°C (67°F) | 74 mm (2.9 inches) | 75% | very high |
| July Weather | 21°C (71°F) | 71 mm (2.8 inches) | 74% | very high |
| August Weather | 19°C (67°F) | 58 mm (2.3 inches) | 77% | very high |
| September Weather | 14°C (58°F) | 87 mm (3.4 inches) | 75% | high |
| October Weather | 6°C (42°F) | 71 mm (2.8 inches) | 78% | moderate |
| November Weather | -4°C (25°F) | 28 mm (1.1 inches) | 87% | low |
| December Weather | -10°C (14°F) | 26 mm (1.0 inches) | 93% | low |