Last updated: June 18, 2025
In December, the average temperature in Gatineau, Canada hovers around -5°C (22°F), with extremes ranging from a frigid -29°C (-20°F) to a milder 14°C (58°F). Expect a total precipitation of 80 mm (3.2 in) spread over 12 days, contributing to the region's high average humidity of 89%.
In December in Gatineau, the average temperature is -5°C (22°F), with maximums reaching 14°C (58°F) and minimums dropping as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures and dress warmly for their visit.
In Gatineau in December, the precipitation amount is 80 mm (3.2 in) over a span of 12 days.
In Gatineau in December humidity is 89%. With an average temperature of -5°C (22°F), this humidity feels like an unexpected chill that seeps into your bones, making travel outside a frosty challenge where each breath forms a small cloud in the air.
In Gatineau 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 Gatineau, you can visit Hourly UV Index in Gatineau.
UV Risk Categories
Weather in Gatineau varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Gatineau, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 76 mm (3.0 inches) | 93% | low |
| February Weather | -8°C (18°F) | 81 mm (3.2 inches) | 93% | moderate |
| March Weather | -3°C (27°F) | 87 mm (3.4 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 112 mm (4.4 inches) | 82% | very high |
| May Weather | 13°C (56°F) | 117 mm (4.6 inches) | 75% | very high |
| June Weather | 18°C (65°F) | 98 mm (3.9 inches) | 68% | very high |
| July Weather | 21°C (70°F) | 114 mm (4.5 inches) | 69% | very high |
| August Weather | 20°C (68°F) | 94 mm (3.7 inches) | 67% | very high |
| September Weather | 15°C (60°F) | 79 mm (3.1 inches) | 72% | high |
| October Weather | 9°C (48°F) | 132 mm (5.2 inches) | 83% | moderate |
| November Weather | 0°C (33°F) | 97 mm (3.8 inches) | 88% | moderate |
| December Weather | -5°C (22°F) | 80 mm (3.2 inches) | 89% | low |