Last updated: August 23, 2025
In December, the average temperature in Chatelais, France hovers around 7°C (45°F). Expect a range of temperatures, with lows of -3°C (26°F) and highs reaching 16°C (61°F). You'll also encounter 99 mm (3.9 in) of precipitation spread over about 15 days, contributing to a notably high average humidity of 90%.
In December in Chatelais, the average temperature is 7°C (45°F). Maximums can reach 16°C (61°F) and minimums can be as low as -3°C (26°F). This means travelers should be prepared for a mix of cool and mild weather, making it a great time for layering and enjoying outdoor activities.
In Chatelais in December, the total precipitation amount is 99 mm (3.9 in) over the course of 15 days.
In Chatelais in December humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.
In Chatelais 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 Chatelais, you can visit Hourly UV Index in Chatelais.
UV Risk Categories
Weather in Chatelais varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chatelais, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (42°F) | 49 mm (1.9 inches) | 88% | low |
| February Weather | 7°C (45°F) | 62 mm (2.5 inches) | 87% | moderate |
| March Weather | 9°C (48°F) | 63 mm (2.5 inches) | 84% | moderate |
| April Weather | 11°C (53°F) | 48 mm (1.9 inches) | 83% | high |
| May Weather | 14°C (58°F) | 64 mm (2.5 inches) | 81% | very high |
| June Weather | 18°C (65°F) | 96 mm (3.8 inches) | 75% | very high |
| July Weather | 20°C (68°F) | 43 mm (1.7 inches) | 65% | very high |
| August Weather | 19°C (67°F) | 45 mm (1.8 inches) | 67% | very high |
| September Weather | 17°C (62°F) | 48 mm (1.9 inches) | 75% | high |
| October Weather | 13°C (56°F) | 83 mm (3.3 inches) | 85% | moderate |
| November Weather | 8°C (47°F) | 75 mm (3.0 inches) | 88% | low |
| December Weather | 7°C (45°F) | 99 mm (3.9 inches) | 90% | low |