Last updated: August 23, 2025
In December, the average temperature in Saint-Glen, France is a cool 7°C (45°F). Expect chilly days, with minimum temperatures dropping to -4°C (26°F) and peaking at a mild 15°C (59°F). Rainfall can be moderate, with 90 mm (3.5 in) expected over 15 days, contributing to an overall humidity level of 90%. Be prepared for a damp and brisk atmosphere!
In December in Saint-Glen, the average temperature is 7°C (45°F). The maximum can reach 15°C (59°F), and the minimum can be as low as -4°C (26°F). This climate suggests that travelers should pack layers to stay comfortable during their visit.
In Saint-Glen in December, the total precipitation amount is 90 mm (3.5 in), which occurs over a span of 15 days.
In Saint-Glen in December humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.
In Saint-Glen 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-Glen, you can visit Hourly UV Index in Saint-Glen.
UV Risk Categories
Weather in Saint-Glen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Glen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 42 mm (1.7 inches) | 89% | low |
| February Weather | 7°C (45°F) | 60 mm (2.4 inches) | 88% | moderate |
| March Weather | 8°C (47°F) | 57 mm (2.3 inches) | 85% | moderate |
| April Weather | 10°C (51°F) | 45 mm (1.8 inches) | 84% | high |
| May Weather | 13°C (56°F) | 64 mm (2.5 inches) | 81% | very high |
| June Weather | 17°C (62°F) | 103 mm (4.0 inches) | 77% | very high |
| July Weather | 18°C (65°F) | 48 mm (1.9 inches) | 63% | very high |
| August Weather | 18°C (64°F) | 51 mm (2.0 inches) | 71% | very high |
| September Weather | 16°C (60°F) | 45 mm (1.8 inches) | 76% | high |
| October Weather | 13°C (55°F) | 89 mm (3.5 inches) | 89% | moderate |
| November Weather | 8°C (48°F) | 66 mm (2.6 inches) | 90% | low |
| December Weather | 7°C (45°F) | 90 mm (3.5 inches) | 90% | low |