Last updated: August 23, 2025
In December, the average temperature in Castelnau-de-Mandailles, France hovers around 3°C (38°F). Expect chilly conditions with a minimum drop to -5°C (24°F) and occasional warmth peaking at 15°C (59°F). This month also brings considerable moisture, with 155 mm (6.1 in) of precipitation spread over 16 days, resulting in an average humidity of an impressive 92%.
In December in Castelnau-de-Mandailles, the average temperature is 3°C (38°F), with maximums reaching up to 15°C (59°F) and minimums plummeting as low as -5°C (24°F). It's essential to pack layers and prepare for chilly conditions if you're planning to travel during this time.
In Castelnau-de-Mandailles, in December, the total precipitation amount is 155 mm (6.1 in) spread over 16 days.
In Castelnau-de-Mandailles in December humidity is 92%. With an average temperature of 3°C (38°F), this humidity feels like a wet chill that seeps into your bones, making outdoor activities uncomfortable and travel arrangements challenging.
In Castelnau-de-Mandailles 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 Castelnau-de-Mandailles, you can visit Hourly UV Index in Castelnau-de-Mandailles.
UV Risk Categories
Weather in Castelnau-de-Mandailles varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castelnau-de-Mandailles, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 94 mm (3.7 inches) | 91% | low |
| February Weather | 4°C (40°F) | 69 mm (2.7 inches) | 88% | moderate |
| March Weather | 6°C (43°F) | 103 mm (4.0 inches) | 84% | high |
| April Weather | 9°C (48°F) | 78 mm (3.1 inches) | 81% | high |
| May Weather | 12°C (54°F) | 110 mm (4.3 inches) | 77% | very high |
| June Weather | 16°C (62°F) | 119 mm (4.7 inches) | 76% | very high |
| July Weather | 19°C (66°F) | 56 mm (2.2 inches) | 68% | very high |
| August Weather | 19°C (66°F) | 60 mm (2.4 inches) | 61% | very high |
| September Weather | 15°C (59°F) | 55 mm (2.2 inches) | 72% | high |
| October Weather | 10°C (51°F) | 87 mm (3.4 inches) | 88% | moderate |
| November Weather | 6°C (43°F) | 100 mm (4.0 inches) | 91% | moderate |
| December Weather | 3°C (38°F) | 155 mm (6.1 inches) | 92% | low |