Last updated: June 18, 2025
In December, the average temperature in Sainte-Marthe-sur-le-Lac, Canada hovers around -5°C (24°F), with lows dipping to a frigid -27°C (-16°F) and highs reaching up to a mild 15°C (59°F). Expect about 90 mm (3.5 in) of precipitation spread over 11 days, contributing to an average humidity of 89%. Dress warmly and prepare for the wet conditions!
In December in Sainte-Marthe-sur-le-Lac, the average temperature is -5°C (24°F). The maximum can reach 15°C (59°F), while the minimum can drop as low as -27°C (-16°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort.
In Sainte-Marthe-sur-le-Lac in December, the total precipitation amounts to 90 mm (3.5 in) over the course of 11 days.
In Sainte-Marthe-sur-le-Lac 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-Marthe-sur-le-Lac 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-Marthe-sur-le-Lac, you can visit Hourly UV Index in Sainte-Marthe-sur-le-Lac.
UV Risk Categories
Weather in Sainte-Marthe-sur-le-Lac varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sainte-Marthe-sur-le-Lac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (17°F) | 86 mm (3.4 inches) | 93% | low |
| February Weather | -7°C (20°F) | 88 mm (3.5 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 88 mm (3.4 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 119 mm (4.7 inches) | 85% | high |
| May Weather | 13°C (56°F) | 101 mm (4.0 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 102 mm (4.0 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 98 mm (3.9 inches) | 76% | very high |
| August Weather | 21°C (70°F) | 101 mm (4.0 inches) | 75% | very high |
| September Weather | 16°C (62°F) | 76 mm (3.0 inches) | 78% | high |
| October Weather | 10°C (50°F) | 133 mm (5.2 inches) | 86% | moderate |
| November Weather | 2°C (35°F) | 113 mm (4.5 inches) | 88% | moderate |
| December Weather | -5°C (24°F) | 90 mm (3.5 inches) | 89% | low |