Last updated: August 23, 2025
In December, the average temperature in Castelnau-Riviere-Basse, France hovers around 8°C (47°F) with a minimum dipping to -4°C (25°F) and a maximum reaching up to 20°C (68°F). Expect significant precipitation of 160 mm (6.3 in) over approximately 16 days, paired with a high average humidity of 88%. 🌧️
In December in Castelnau-Riviere-Basse, the average temperature is 8°C (47°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -4°C (25°F). Overall, this month offers a mix of mild days and chilly nights, making it essential for travelers to dress in layers.
In Castelnau-Riviere-Basse in December, the total precipitation amount is 160 mm (6.3 in) spread over 16 days.
In Castelnau-Riviere-Basse in December, humidity is 88%. With an average temperature of 8°C (47°F), this humidity feels like a thick, damp blanket wrapping around you, making even short walks feel heavy and uninviting for travel.
In Castelnau-Riviere-Basse 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-Riviere-Basse, you can visit Hourly UV Index in Castelnau-Riviere-Basse.
UV Risk Categories
Weather in Castelnau-Riviere-Basse varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Castelnau-Riviere-Basse, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 92 mm (3.6 inches) | 87% | low |
| February Weather | 9°C (48°F) | 80 mm (3.1 inches) | 83% | moderate |
| March Weather | 10°C (51°F) | 86 mm (3.4 inches) | 80% | high |
| April Weather | 13°C (56°F) | 91 mm (3.6 inches) | 77% | high |
| May Weather | 16°C (62°F) | 118 mm (4.6 inches) | 75% | very high |
| June Weather | 20°C (68°F) | 98 mm (3.9 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 68 mm (2.7 inches) | 72% | very high |
| August Weather | 22°C (72°F) | 53 mm (2.1 inches) | 70% | very high |
| September Weather | 19°C (67°F) | 73 mm (2.9 inches) | 73% | high |
| October Weather | 15°C (59°F) | 83 mm (3.3 inches) | 82% | moderate |
| November Weather | 9°C (49°F) | 113 mm (4.4 inches) | 87% | moderate |
| December Weather | 8°C (47°F) | 160 mm (6.3 inches) | 88% | low |