Last updated: August 23, 2025
In December, the average temperature in Acy, France hovers around 6°C (42°F). Expect a chill in the air with minimum temperatures dipping to -4°C (25°F), while highs can reach up to 15°C (60°F). This month typically sees about 113 mm (4.4 in) of precipitation spread over 16 days, contributing to a high average humidity of 93%, perfect for cozy indoor activities!
In December in Acy, the average temperature is 6°C (42°F). Maximum temperatures can reach 15°C (60°F), while minimums can drop to as low as -4°C (25°F). Therefore, it's advisable to pack layers and prepare for chilly and potentially variable weather conditions during your travels.
In Acy in December, the precipitation amount is 113 mm (4.4 in) spread over 16 days.
In Acy in December, humidity is 93%. With an average temperature of 6°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and necessitating extra layers to stay warm and dry while traveling.
In Acy 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 Acy.
UV Risk Categories
Weather in Acy varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Acy, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 71 mm (2.8 inches) | 91% | low |
| February Weather | 6°C (42°F) | 74 mm (2.9 inches) | 89% | moderate |
| March Weather | 8°C (46°F) | 72 mm (2.8 inches) | 86% | moderate |
| April Weather | 11°C (51°F) | 37 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (58°F) | 64 mm (2.5 inches) | 82% | very high |
| June Weather | 19°C (66°F) | 65 mm (2.5 inches) | 82% | very high |
| July Weather | 20°C (69°F) | 57 mm (2.2 inches) | 80% | very high |
| August Weather | 20°C (68°F) | 66 mm (2.6 inches) | 76% | very high |
| September Weather | 16°C (62°F) | 57 mm (2.2 inches) | 81% | high |
| October Weather | 12°C (54°F) | 83 mm (3.3 inches) | 88% | moderate |
| November Weather | 7°C (45°F) | 70 mm (2.7 inches) | 92% | low |
| December Weather | 6°C (42°F) | 113 mm (4.4 inches) | 93% | low |