Last updated: June 18, 2025
In December, the average temperature in Saint-Germain-de-Grantham, Canada is a chilly -5°C (23°F), with extremes ranging from a frosty -28°C (-18°F) to a milder 16°C (61°F). Expect around 87 mm (3.4 in) of precipitation over 13 days, contributing to an average humidity level of a damp 89%. Stay warm and prepared for the wintery weather!
In December in Saint-Germain-de-Grantham, the average temperature is -5°C (23°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -28°C (-18°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for both cold and milder conditions.
In Saint-Germain-de-Grantham in December, the precipitation amount is 87 mm (3.4 in) spread over 13 days.
In Saint-Germain-de-Grantham in December, humidity is 89%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and prompting frequent breaks to warm up indoors.
In Saint-Germain-de-Grantham 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 Saint-Germain-de-Grantham, you can visit Hourly UV Index in Saint-Germain-de-Grantham.
UV Risk Categories
Weather in Saint-Germain-de-Grantham varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Germain-de-Grantham, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (17°F) | 88 mm (3.5 inches) | 93% | low |
| February Weather | -7°C (20°F) | 83 mm (3.3 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 84 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 117 mm (4.6 inches) | 85% | high |
| May Weather | 13°C (56°F) | 102 mm (4.0 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 124 mm (4.9 inches) | 74% | very high |
| July Weather | 21°C (70°F) | 106 mm (4.2 inches) | 76% | very high |
| August Weather | 20°C (68°F) | 118 mm (4.6 inches) | 75% | very high |
| September Weather | 15°C (60°F) | 69 mm (2.7 inches) | 78% | high |
| October Weather | 9°C (49°F) | 135 mm (5.3 inches) | 86% | moderate |
| November Weather | 1°C (34°F) | 117 mm (4.6 inches) | 88% | moderate |
| December Weather | -5°C (23°F) | 87 mm (3.4 inches) | 89% | low |