Last updated: August 23, 2025
In Longueil, France, the average temperature in December hovers around 8°C (46°F), with a minimum dipping to -1°C (31°F) and a comfortable maximum reaching 14°C (57°F). Expect 139 mm (5.5 in) of precipitation spread over 20 days, contributing to an average humidity of a high 93%. Pack your umbrella and layers for a cozy and wet experience!
In December in Longueil, the average temperature is 8°C (46°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -1°C (31°F). It's a good idea to pack layers and prepare for varying weather conditions during your travels.
In Longueil in December, the total precipitation amount is 139 mm (5.5 in) spread over 20 days.
In Longueil in December humidity is 93%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities uncomfortable and travel less enjoyable.
In Longueil in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Longueil.
UV Risk Categories
Weather in Longueil varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Longueil, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 77 mm (3.0 inches) | 91% | low |
| February Weather | 7°C (45°F) | 72 mm (2.8 inches) | 89% | moderate |
| March Weather | 8°C (47°F) | 78 mm (3.1 inches) | 85% | moderate |
| April Weather | 10°C (50°F) | 33 mm (1.3 inches) | 84% | high |
| May Weather | 13°C (55°F) | 76 mm (3.0 inches) | 82% | high |
| June Weather | 16°C (61°F) | 66 mm (2.6 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 49 mm (1.9 inches) | 73% | very high |
| August Weather | 18°C (65°F) | 75 mm (2.9 inches) | 68% | very high |
| September Weather | 16°C (62°F) | 69 mm (2.7 inches) | 76% | moderate |
| October Weather | 14°C (57°F) | 104 mm (4.1 inches) | 88% | moderate |
| November Weather | 9°C (49°F) | 101 mm (4.0 inches) | 92% | low |
| December Weather | 8°C (46°F) | 139 mm (5.5 inches) | 93% | low |