Last updated: June 18, 2025
In December, the average temperature in Hudson Bay, Canada hovers around -13°C (8°F), with extremes that can plunge to a chilling -39°C (-38°F) or rise to a mild 6°C (42°F). Expect 21 mm (0.8 in) of precipitation spread over 5 days, and prepare for high humidity levels averaging around 95%.
In December in Hudson Bay, the average temperature is -13°C (8°F). Maximums can reach 6°C (42°F), while minimums can drop to as low as -39°C (-38°F). Travelers should be well-prepared for extreme cold and dress in layers to stay warm.
In Hudson Bay in December, the precipitation amount is 21 mm (0.8 in) spread over a period of 5 days.
In Hudson Bay in December humidity is 95%. With an average temperature of -13°C (8°F), this humidity feels like a biting chill that penetrates through layers of clothing, making outdoor activities uncomfortable and travel quite challenging as the cold dampness settles in.
In Hudson Bay 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 Hudson Bay.
UV Risk Categories
Weather in Hudson Bay varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hudson Bay, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -15°C (4°F) | 26 mm (1.0 inches) | 93% | low |
| February Weather | -17°C (2°F) | 13 mm (0.5 inches) | 96% | moderate |
| March Weather | -7°C (20°F) | 33 mm (1.3 inches) | 94% | moderate |
| April Weather | 1°C (33°F) | 29 mm (1.1 inches) | 84% | high |
| May Weather | 10°C (51°F) | 44 mm (1.7 inches) | 72% | high |
| June Weather | 16°C (61°F) | 89 mm (3.5 inches) | 64% | very high |
| July Weather | 19°C (66°F) | 107 mm (4.2 inches) | 78% | very high |
| August Weather | 16°C (62°F) | 63 mm (2.5 inches) | 81% | high |
| September Weather | 11°C (52°F) | 48 mm (1.9 inches) | 79% | high |
| October Weather | 3°C (37°F) | 40 mm (1.6 inches) | 83% | moderate |
| November Weather | -8°C (18°F) | 37 mm (1.4 inches) | 91% | low |
| December Weather | -13°C (8°F) | 21 mm (0.8 inches) | 95% | low |