Last updated: August 23, 2025
In Rion-des-Landes, France, the average temperature in December hovers around 9°C (49°F). This month can see a chillier minimum of -4°C (25°F), and occasionally reach a pleasant maximum of 19°C (67°F). Be prepared for 139 mm (5.5 in) of precipitation spread over 15 days, resulting in an average humidity level of a moist 87%.
In December in Rion-des-Landes, the average temperature is 9°C (49°F). Maximums can reach 19°C (67°F), while minimums can dip as low as -4°C (25°F). This range makes it essential for travelers to dress in layers to accommodate varying weather conditions.
In Rion-des-Landes in December, the precipitation amount is 139 mm (5.5 in), occurring over 15 days.
In Rion-des-Landes in December humidity is 87%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making travel uncomfortable and leaving you yearning for a dry breeze to refresh your spirit.
In Rion-des-Landes 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 Rion-des-Landes, you can visit Hourly UV Index in Rion-des-Landes.
UV Risk Categories
Weather in Rion-des-Landes varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rion-des-Landes, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 7°C (45°F) | 77 mm (3.0 inches) | 86% | low |
| February Weather | 10°C (50°F) | 69 mm (2.7 inches) | 85% | moderate |
| March Weather | 11°C (53°F) | 75 mm (3.0 inches) | 82% | moderate |
| April Weather | 14°C (57°F) | 67 mm (2.6 inches) | 81% | high |
| May Weather | 17°C (63°F) | 99 mm (3.9 inches) | 80% | very high |
| June Weather | 20°C (69°F) | 92 mm (3.6 inches) | 81% | very high |
| July Weather | 23°C (73°F) | 52 mm (2.1 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 56 mm (2.2 inches) | 76% | very high |
| September Weather | 20°C (68°F) | 61 mm (2.4 inches) | 75% | high |
| October Weather | 15°C (60°F) | 80 mm (3.1 inches) | 81% | moderate |
| November Weather | 10°C (51°F) | 106 mm (4.2 inches) | 85% | moderate |
| December Weather | 9°C (49°F) | 139 mm (5.5 inches) | 87% | low |