Last updated: June 18, 2025
In Belleville, Canada, the average temperature in December hovers around -2°C (28°F). However, you might experience a chilling minimum of -29°C (-19°F) and a surprisingly warm maximum of 15°C (58°F). Be prepared for some moisture, as the region sees an average precipitation of 79 mm (3.1 in) over 11 days. With an average humidity of 91%, it's a month where you can truly feel the winter's embrace!
In December in Belleville, the average temperature is -2°C (28°F). Maximum temperatures can reach 15°C (58°F), while minimums can plummet as low as -29°C (-19°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for both the chilly and milder conditions.
In Belleville in December, the total precipitation amount is 79 mm (3.1 in), falling over the course of 11 days.
In Belleville in December humidity is 91%. With an average temperature of -2°C (28°F), this humidity feels like an icy grip on your skin, making every breath feel heavy and damp, which can be particularly uncomfortable for traveling.
In Belleville in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Belleville, you can visit Hourly UV Index in Belleville.
UV Risk Categories
Weather in Belleville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Belleville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 69 mm (2.7 inches) | 93% | low |
| February Weather | -5°C (24°F) | 72 mm (2.8 inches) | 94% | moderate |
| March Weather | 0°C (32°F) | 65 mm (2.6 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 114 mm (4.5 inches) | 82% | very high |
| May Weather | 13°C (56°F) | 95 mm (3.7 inches) | 74% | very high |
| June Weather | 19°C (66°F) | 92 mm (3.6 inches) | 68% | very high |
| July Weather | 22°C (72°F) | 89 mm (3.5 inches) | 67% | very high |
| August Weather | 21°C (70°F) | 102 mm (4.0 inches) | 67% | very high |
| September Weather | 17°C (63°F) | 79 mm (3.1 inches) | 74% | high |
| October Weather | 10°C (51°F) | 126 mm (5.0 inches) | 83% | moderate |
| November Weather | 3°C (37°F) | 90 mm (3.5 inches) | 89% | moderate |
| December Weather | -2°C (28°F) | 79 mm (3.1 inches) | 91% | low |