Last updated: August 23, 2025
In December, the average temperature in Ria-Sirach, France hovers around 5°C (41°F). Expect a chilly range, with minimums dipping to -5°C (23°F) and maximums climbing to 17°C (63°F). Be prepared for 48 mm (1.9 in) of precipitation spread over 7 days, and brace for a rather damp atmosphere, as the average humidity sits at a notable 88%.
In December, in Ria-Sirach, the average temperature is 5°C (41°F). Maximums can reach 17°C (63°F), while minimums can drop to as low as -5°C (23°F). Pack for a wide range of temperatures and enjoy the beauty of Ria-Sirach during this month!
In Ria-Sirach in December, the total precipitation amount is 48 mm (1.9 in) over a span of 7 days.
In Ria-Sirach in December humidity is 88%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making it essential to bundle up for your travels, as every breath feels heavy in the air and the landscape appears cloaked in a misty shroud.
In Ria-Sirach 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 Ria-Sirach, you can visit Hourly UV Index in Ria-Sirach.
UV Risk Categories
Weather in Ria-Sirach varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ria-Sirach, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 84 mm (3.3 inches) | 87% | moderate |
| February Weather | 6°C (43°F) | 48 mm (1.9 inches) | 83% | moderate |
| March Weather | 7°C (46°F) | 79 mm (3.1 inches) | 80% | high |
| April Weather | 10°C (50°F) | 109 mm (4.3 inches) | 77% | very high |
| May Weather | 14°C (57°F) | 110 mm (4.3 inches) | 75% | very high |
| June Weather | 18°C (64°F) | 109 mm (4.3 inches) | 74% | extreme |
| July Weather | 20°C (69°F) | 85 mm (3.4 inches) | 72% | extreme |
| August Weather | 20°C (69°F) | 85 mm (3.3 inches) | 70% | very high |
| September Weather | 16°C (62°F) | 93 mm (3.7 inches) | 73% | very high |
| October Weather | 12°C (55°F) | 114 mm (4.5 inches) | 82% | high |
| November Weather | 7°C (45°F) | 89 mm (3.5 inches) | 87% | moderate |
| December Weather | 5°C (41°F) | 48 mm (1.9 inches) | 88% | low |