Last updated: June 18, 2025
In December, the average temperature in Denman Island, Canada hovers around 4°C (40°F). This month can bring temperature extremes, with lows of -9°C (16°F) and highs reaching up to 11°C (53°F). Expect a fair amount of rain, with an average precipitation of 262 mm (10.3 in) spread over 21 days. Additionally, the air tends to be quite moist, boasting an average humidity of 87%.
In December in Denman Island, the average temperature is 4°C (40°F). The maximum can reach 11°C (53°F), while the minimum can drop to as low as -9°C (16°F). Be prepared for cold weather if you plan to travel during this time!
In Denman Island in December, the total precipitation amount is 262 mm (10.3 in) over the course of 21 days.
In Denman Island in December humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.
In Denman Island 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 Denman Island.
UV Risk Categories
Weather in Denman Island varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Denman Island, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 266 mm (10.5 inches) | 86% | low |
| February Weather | 3°C (38°F) | 151 mm (5.9 inches) | 85% | moderate |
| March Weather | 5°C (42°F) | 133 mm (5.3 inches) | 86% | moderate |
| April Weather | 8°C (47°F) | 122 mm (4.8 inches) | 86% | high |
| May Weather | 12°C (55°F) | 59 mm (2.3 inches) | 81% | high |
| June Weather | 15°C (60°F) | 58 mm (2.3 inches) | 83% | very high |
| July Weather | 18°C (65°F) | 24 mm (1.0 inches) | 84% | very high |
| August Weather | 19°C (66°F) | 47 mm (1.8 inches) | 77% | very high |
| September Weather | 15°C (59°F) | 149 mm (5.9 inches) | 76% | high |
| October Weather | 10°C (50°F) | 188 mm (7.4 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 296 mm (11.7 inches) | 87% | low |
| December Weather | 4°C (40°F) | 262 mm (10.3 inches) | 87% | low |