Last updated: August 23, 2025
In Siran, France, the average temperature in December hovers around 5°C (41°F), with extremes ranging from a chilly -12°C (11°F) to a mild 15°C (60°F). Expect 217 mm (8.6 in) of precipitation spread over 18 days, contributing to a notably high average humidity of 92%. Prepare for a damp and cool atmosphere as you explore this captivating destination!
In December in Siran, the average temperature is 5°C (41°F). Maximums can reach 15°C (60°F) and minimums can be as low as -12°C (11°F). Travelers should be prepared for a range of temperatures, so it's advisable to pack both warm clothing and lighter layers.
In Siran in December, the precipitation amount is 217 mm (8.6 in) spread over 18 days.
In Siran in December humidity is 92%. With an average temperature of 5°C (41°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable and dampening the spirits of those unprepared for the chill.
In Siran 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 Siran, you can visit Hourly UV Index in Siran.
UV Risk Categories
Weather in Siran varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Siran, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 127 mm (5.0 inches) | 90% | low |
| February Weather | 6°C (42°F) | 104 mm (4.1 inches) | 87% | moderate |
| March Weather | 7°C (45°F) | 131 mm (5.1 inches) | 85% | high |
| April Weather | 10°C (51°F) | 78 mm (3.1 inches) | 84% | high |
| May Weather | 13°C (56°F) | 147 mm (5.8 inches) | 84% | very high |
| June Weather | 18°C (64°F) | 139 mm (5.5 inches) | 82% | very high |
| July Weather | 20°C (67°F) | 95 mm (3.7 inches) | 79% | very high |
| August Weather | 19°C (67°F) | 75 mm (3.0 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 93 mm (3.7 inches) | 79% | high |
| October Weather | 12°C (53°F) | 106 mm (4.2 inches) | 86% | moderate |
| November Weather | 7°C (45°F) | 126 mm (5.0 inches) | 90% | moderate |
| December Weather | 5°C (41°F) | 217 mm (8.6 inches) | 92% | low |