Last updated: June 18, 2025
In Sainte-Catherine, Canada, the average temperature in December hovers around -5°C (24°F). Be prepared for chilly extremes, as temperatures can dip to a frigid -26°C (-15°F), while the mildest days reach up to 14°C (57°F). Expect about 88 mm (3.5 in) of precipitation spread across 12 days, contributing to an average humidity of a damp 89%. Bundle up and enjoy the wintery charm!
In December in Sainte-Catherine, the average temperature is -5°C (24°F). Maximums can reach 14°C (57°F), while minimums can drop as low as -26°C (-15°F). Be prepared for a wide range of temperatures if you plan to travel during this time.
In Sainte-Catherine in December, the precipitation amount is 88 mm (3.5 in) over a span of 12 days.
In Sainte-Catherine in December humidity is 89%. With an average temperature of -5°C (24°F), this humidity feels like an uncomfortable chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm while battling the dampness in the air.
In Sainte-Catherine 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 Sainte-Catherine, you can visit Hourly UV Index in Sainte-Catherine.
UV Risk Categories
Weather in Sainte-Catherine varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sainte-Catherine, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (17°F) | 84 mm (3.3 inches) | 93% | low |
| February Weather | -7°C (20°F) | 82 mm (3.2 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 84 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 121 mm (4.7 inches) | 85% | high |
| May Weather | 14°C (57°F) | 97 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 103 mm (4.1 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 103 mm (4.1 inches) | 76% | very high |
| August Weather | 21°C (70°F) | 109 mm (4.3 inches) | 75% | very high |
| September Weather | 16°C (62°F) | 73 mm (2.9 inches) | 78% | high |
| October Weather | 10°C (50°F) | 139 mm (5.5 inches) | 86% | moderate |
| November Weather | 2°C (35°F) | 118 mm (4.6 inches) | 88% | moderate |
| December Weather | -5°C (24°F) | 88 mm (3.5 inches) | 89% | low |