Last updated: June 18, 2025
In Swan River, Canada, the average temperature in December hovers around -13°C (10°F). During this month, you may experience a chilling minimum of -37°C (-35°F), while temperatures can occasionally rise to a maximum of 4°C (40°F). Expect 21 mm (0.8 in) of precipitation spread over 6 days, and brace yourself for an average humidity level of 95%, making it feel even colder.
In December in Swan River, the average temperature is -13°C (10°F). The maximum can reach 4°C (40°F) while the minimum can drop as low as -37°C (-35°F). Be prepared for extreme cold conditions if you plan to travel during this time.
In Swan River in December, the total precipitation amount is 21 mm (0.8 in), occurring over a span of 6 days.
In Swan River in December humidity is 95%. With an average temperature of -13°C (10°F), this humidity feels like a biting chill that seeps through layers of clothing, making any outdoor activities feel daunting and uncomfortable for travelers.
In Swan River 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 Swan River.
UV Risk Categories
Weather in Swan River varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Swan River, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -15°C (6°F) | 25 mm (1.0 inches) | 93% | low |
| February Weather | -17°C (2°F) | 16 mm (0.6 inches) | 94% | moderate |
| March Weather | -7°C (20°F) | 33 mm (1.3 inches) | 92% | moderate |
| April Weather | 0°C (33°F) | 27 mm (1.1 inches) | 82% | high |
| May Weather | 10°C (50°F) | 37 mm (1.4 inches) | 73% | very high |
| June Weather | 16°C (61°F) | 99 mm (3.9 inches) | 69% | very high |
| July Weather | 19°C (66°F) | 67 mm (2.6 inches) | 77% | very high |
| August Weather | 17°C (62°F) | 60 mm (2.4 inches) | 78% | high |
| September Weather | 11°C (52°F) | 41 mm (1.6 inches) | 76% | high |
| October Weather | 3°C (37°F) | 41 mm (1.6 inches) | 80% | moderate |
| November Weather | -7°C (19°F) | 35 mm (1.4 inches) | 88% | low |
| December Weather | -13°C (10°F) | 21 mm (0.8 inches) | 95% | low |