Last updated: June 18, 2025
In December, the average temperature in Cobourg, Canada hovers around -1°C (31°F). However, be prepared for a wide range, as temperatures can dip as low as -23°C (-8°F) or rise to a cozy 14°C (57°F). Expect about 79 mm (3.1 in) of precipitation over 12 days, contributing to an average humidity of 87%. Adjust your wardrobe accordingly!
In December in Cobourg, the average temperature is -1°C (31°F), with maximums reaching 14°C (57°F) and minimums plummeting to as low as -23°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for both chilly and milder conditions.
In Cobourg in December, the precipitation amount is 79 mm (3.1 in) over a period of 12 days.
In Cobourg in December humidity is 87%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that seeps through your clothes, making traveling incredibly uncomfortable as it adds a layer of dampness to the already cold air, leaving you shivering and wishing for warmth.
In Cobourg 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 Cobourg, you can visit Hourly UV Index in Cobourg.
UV Risk Categories
Weather in Cobourg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cobourg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 67 mm (2.6 inches) | 91% | low |
| February Weather | -4°C (25°F) | 71 mm (2.8 inches) | 91% | moderate |
| March Weather | -1°C (31°F) | 60 mm (2.4 inches) | 88% | moderate |
| April Weather | 5°C (42°F) | 109 mm (4.3 inches) | 88% | very high |
| May Weather | 12°C (53°F) | 89 mm (3.5 inches) | 82% | very high |
| June Weather | 18°C (64°F) | 77 mm (3.0 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 85 mm (3.3 inches) | 77% | very high |
| August Weather | 22°C (71°F) | 94 mm (3.7 inches) | 72% | very high |
| September Weather | 18°C (64°F) | 74 mm (2.9 inches) | 76% | high |
| October Weather | 11°C (53°F) | 105 mm (4.1 inches) | 83% | moderate |
| November Weather | 4°C (40°F) | 87 mm (3.4 inches) | 88% | moderate |
| December Weather | -1°C (31°F) | 79 mm (3.1 inches) | 87% | low |