Last updated: June 18, 2025
The average temperature in Thetford-Mines, Canada during May is a comfortable 11°C (52°F). However, temperatures can vary widely, with minimums dipping to -2°C (29°F) and maximums soaring up to 29°C (84°F). Be prepared for some rain, as precipitation averages around 113 mm (4.5 in) over 14 days, and expect a humidity level of 78% to accompany the varying weather.
In May in Thetford-Mines, the average temperature is 11°C (52°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, so pack accordingly to enjoy your visit.
In Thetford-Mines in May, the precipitation amount is 113 mm (4.5 in) over a period of 14 days.
In Thetford-Mines in May humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.
In Thetford-Mines 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 Thetford-Mines.
UV Risk Categories
Weather in Thetford-Mines varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Thetford-Mines, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 91 mm (3.6 inches) | 91% | low |
| February Weather | -8°C (17°F) | 91 mm (3.6 inches) | 89% | moderate |
| March Weather | -4°C (25°F) | 91 mm (3.6 inches) | 85% | moderate |
| April Weather | 3°C (38°F) | 127 mm (5.0 inches) | 84% | high |
| May Weather | 11°C (52°F) | 113 mm (4.5 inches) | 78% | very high |
| June Weather | 16°C (61°F) | 136 mm (5.3 inches) | 72% | very high |
| July Weather | 19°C (67°F) | 132 mm (5.2 inches) | 75% | very high |
| August Weather | 18°C (65°F) | 132 mm (5.2 inches) | 74% | very high |
| September Weather | 14°C (57°F) | 79 mm (3.1 inches) | 77% | high |
| October Weather | 8°C (46°F) | 134 mm (5.3 inches) | 85% | moderate |
| November Weather | -1°C (31°F) | 117 mm (4.6 inches) | 86% | moderate |
| December Weather | -7°C (20°F) | 90 mm (3.6 inches) | 85% | low |