Last updated: June 18, 2025
In May, the average temperature in St-Jean-Port-Joli, Canada hovers around 9°C (48°F). Expect variations, with minimums dipping to -2°C (28°F) and maximums soaring up to 27°C (80°F). Be prepared for 111 mm (4.4 in) of precipitation over approximately 15 days, contributing to a 79% average humidity.
In May in St-Jean-Port-Joli, the average temperature is 9°C (48°F). The maximum can reach 27°C (80°F) and the minimum can be as low as -2°C (28°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!
In St-Jean-Port-Joli in May, the total precipitation amount is 111 mm (4.4 in) spread over 15 days.
In St-Jean-Port-Joli in May humidity is 79%. With an average temperature of 9°C (48°F), this humidity feels like a chilly mist wrapping around you, making outdoor activities brisk yet invigorating, but it can also leave you feeling damp and slightly chilled if you're not dressed appropriately for the conditions.
In St-Jean-Port-Joli 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 St-Jean-Port-Joli.
UV Risk Categories
Weather in St-Jean-Port-Joli varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in St-Jean-Port-Joli, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 90 mm (3.6 inches) | 95% | low |
| February Weather | -9°C (17°F) | 82 mm (3.2 inches) | 93% | moderate |
| March Weather | -4°C (25°F) | 98 mm (3.9 inches) | 90% | moderate |
| April Weather | 2°C (35°F) | 138 mm (5.4 inches) | 87% | high |
| May Weather | 9°C (48°F) | 111 mm (4.4 inches) | 79% | very high |
| June Weather | 15°C (60°F) | 96 mm (3.8 inches) | 73% | very high |
| July Weather | 19°C (66°F) | 78 mm (3.1 inches) | 81% | very high |
| August Weather | 19°C (66°F) | 82 mm (3.2 inches) | 81% | very high |
| September Weather | 14°C (58°F) | 85 mm (3.3 inches) | 81% | high |
| October Weather | 8°C (47°F) | 158 mm (6.2 inches) | 87% | moderate |
| November Weather | 0°C (32°F) | 130 mm (5.1 inches) | 89% | moderate |
| December Weather | -6°C (21°F) | 104 mm (4.1 inches) | 92% | low |