Last updated: June 18, 2025
In Rimouski, Canada during December, the average temperature hovers around -5°C (23°F). Expect chilly nights where temperatures can plummet to a brisk -19°C (-2°F), while daytime highs may reach up to 14°C (57°F). This month brings about 86 mm (3.4 in) of precipitation spread over 13 days, contributing to a high average humidity of 94%.
In December in Rimouski, the average temperature is -5°C (23°F). The maximum can reach 14°C (57°F), while the minimum can dip as low as -19°C (-2°F). Be prepared for a wide range of temperatures when traveling during this month.
In Rimouski, in December, the precipitation amount is 86 mm (3.4 in) over the course of 13 days.
In Rimouski in December, humidity is 94%. With an average temperature of -5°C (23°F), this humidity feels like a chilling dampness that seeps into your bones, making travel uncomfortable and requiring extra layers to combat the biting cold.
In Rimouski in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Rimouski.
UV Risk Categories
Weather in Rimouski varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rimouski, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (15°F) | 78 mm (3.1 inches) | 94% | low |
| February Weather | -9°C (16°F) | 62 mm (2.4 inches) | 93% | moderate |
| March Weather | -4°C (24°F) | 75 mm (3.0 inches) | 91% | moderate |
| April Weather | 1°C (35°F) | 104 mm (4.1 inches) | 89% | high |
| May Weather | 7°C (45°F) | 82 mm (3.2 inches) | 82% | very high |
| June Weather | 13°C (55°F) | 69 mm (2.7 inches) | 74% | very high |
| July Weather | 16°C (62°F) | 64 mm (2.5 inches) | 80% | very high |
| August Weather | 17°C (63°F) | 61 mm (2.4 inches) | 83% | very high |
| September Weather | 13°C (55°F) | 83 mm (3.3 inches) | 85% | high |
| October Weather | 8°C (46°F) | 123 mm (4.8 inches) | 88% | moderate |
| November Weather | 1°C (34°F) | 108 mm (4.3 inches) | 89% | low |
| December Weather | -5°C (23°F) | 86 mm (3.4 inches) | 94% | low |