Last updated: August 23, 2025
In Grand, France, the average temperature in December hovers around 4°C (40°F). Expect cool conditions with minimums dipping to -5°C (24°F) and maximums reaching up to 15°C (58°F). Prepare for 142 mm (5.6 in) of precipitation spread over 20 days, resulting in an average humidity level of 93%. Ideal for cozy, indoor activities!
In December in Grand, the average temperature is 4°C (40°F). Maximums can reach 15°C (58°F), while minimums can drop as low as -5°C (24°F). Be prepared for chilly weather and pack layers if you're planning to visit during this time.
In Grand in December, the precipitation amount is 142 mm (5.6 in) spread over 20 days.
In Grand in December, humidity is 93%. With an average temperature of 4°C (40°F), this humidity feels like a cold, damp blanket wrapping around you, making travel uncomfortable and requiring extra layers to stay warm, as every step can feel heavy in the thick, moisture-laden air.
In Grand 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 Grand.
UV Risk Categories
Weather in Grand varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Grand, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (37°F) | 101 mm (4.0 inches) | 91% | low |
| February Weather | 5°C (41°F) | 87 mm (3.4 inches) | 90% | moderate |
| March Weather | 7°C (44°F) | 95 mm (3.7 inches) | 88% | moderate |
| April Weather | 10°C (50°F) | 43 mm (1.7 inches) | 84% | high |
| May Weather | 13°C (57°F) | 86 mm (3.4 inches) | 81% | very high |
| June Weather | 18°C (65°F) | 84 mm (3.3 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 62 mm (2.4 inches) | 82% | very high |
| August Weather | 19°C (67°F) | 48 mm (1.9 inches) | 80% | very high |
| September Weather | 16°C (60°F) | 64 mm (2.5 inches) | 83% | high |
| October Weather | 11°C (53°F) | 79 mm (3.1 inches) | 89% | moderate |
| November Weather | 6°C (43°F) | 83 mm (3.3 inches) | 91% | low |
| December Weather | 4°C (40°F) | 142 mm (5.6 inches) | 93% | low |