Last updated: August 23, 2025
In December, the average temperature in Saint-Gildas-des-Bois, France hovers around 8°C (46°F). Temperatures can dip to a chilly -3°C (27°F) at night, while daytime highs may reach up to 16°C (61°F). Expect 99 mm (3.9 in) of precipitation spread over approximately 14 days, combined with a high average humidity of 90%, making for a moist and crisp atmosphere.
In December in Saint-Gildas-des-Bois, the average temperature is 8°C (46°F), with maximums possibly reaching 16°C (61°F) and minimums dropping to as low as -3°C (27°F). Be prepared for a range of weather conditions if you're planning to travel during this time.
In Saint-Gildas-des-Bois in December, the precipitation amount is 99 mm (3.9 in) over the course of 14 days.
In Saint-Gildas-des-Bois in December, humidity is 90%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers and stay dry while exploring the sights.
In Saint-Gildas-des-Bois 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 Saint-Gildas-des-Bois, you can visit Hourly UV Index in Saint-Gildas-des-Bois.
UV Risk Categories
Weather in Saint-Gildas-des-Bois varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Gildas-des-Bois, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (44°F) | 45 mm (1.8 inches) | 88% | low |
| February Weather | 8°C (46°F) | 63 mm (2.5 inches) | 87% | moderate |
| March Weather | 9°C (49°F) | 64 mm (2.5 inches) | 84% | moderate |
| April Weather | 12°C (53°F) | 49 mm (1.9 inches) | 83% | high |
| May Weather | 15°C (59°F) | 66 mm (2.6 inches) | 81% | very high |
| June Weather | 18°C (65°F) | 84 mm (3.3 inches) | 75% | very high |
| July Weather | 20°C (68°F) | 46 mm (1.8 inches) | 65% | very high |
| August Weather | 19°C (67°F) | 45 mm (1.8 inches) | 67% | very high |
| September Weather | 17°C (63°F) | 39 mm (1.6 inches) | 75% | high |
| October Weather | 13°C (56°F) | 84 mm (3.3 inches) | 85% | moderate |
| November Weather | 9°C (48°F) | 74 mm (2.9 inches) | 88% | low |
| December Weather | 8°C (46°F) | 99 mm (3.9 inches) | 90% | low |