Last updated: August 23, 2025
In December, the average temperature in Saint-Jean-Trolimon, France hovers around 11°C (51°F), with a minimum dipping to 5°C (41°F) and a maximum reaching 14°C (58°F). Expect about 138 mm (5.4 in) of precipitation over 18 days, contributing to an average humidity of 82%. Stay prepared for a mix of cool, wet weather!
In December in Saint-Jean-Trolimon, the average temperature is 11°C (51°F). The maximum can reach 14°C (58°F), while the minimum can be as low as 5°C (41°F). It's a mild time to visit, making it ideal for outdoor activities and exploring the area comfortably.
In Saint-Jean-Trolimon in December, the precipitation amount is 138 mm (5.4 in), occurring over the course of 18 days.
In Saint-Jean-Trolimon in December, humidity is 82%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring additional layers to stay warm while exploring.
In Saint-Jean-Trolimon 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-Jean-Trolimon, you can visit Hourly UV Index in Saint-Jean-Trolimon.
UV Risk Categories
Weather in Saint-Jean-Trolimon varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Jean-Trolimon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (48°F) | 68 mm (2.7 inches) | 82% | low |
| February Weather | 9°C (49°F) | 93 mm (3.6 inches) | 83% | moderate |
| March Weather | 10°C (50°F) | 71 mm (2.8 inches) | 81% | moderate |
| April Weather | 11°C (52°F) | 36 mm (1.4 inches) | 82% | high |
| May Weather | 13°C (57°F) | 56 mm (2.2 inches) | 82% | very high |
| June Weather | 16°C (62°F) | 53 mm (2.1 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 42 mm (1.6 inches) | 77% | very high |
| August Weather | 18°C (64°F) | 52 mm (2.1 inches) | 78% | very high |
| September Weather | 17°C (62°F) | 50 mm (2.0 inches) | 79% | high |
| October Weather | 14°C (58°F) | 96 mm (3.8 inches) | 82% | moderate |
| November Weather | 12°C (53°F) | 106 mm (4.2 inches) | 81% | low |
| December Weather | 11°C (51°F) | 138 mm (5.4 inches) | 82% | low |