Last updated: August 23, 2025
In December, the average temperature in Fort-Mahon-Plage, France hovers around 8°C (46°F). Expect chilly days with a minimum temperature dropping to -1°C (31°F) and a maximum reaching 14°C (57°F). Precipitation is prevalent, with about 146 mm (5.7 in) falling over 20 days, contributing to a high average humidity of 92%.
In December in Fort-Mahon-Plage, 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 Fort-Mahon-Plage in December, the precipitation amount is 146 mm (5.7 in) spread over a duration of 20 days.
In Fort-Mahon-Plage in December, humidity is 92%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that settles deep into your bones, making outdoor adventures uncomfortable and necessitating extra layers to stay warm while you explore.
In Fort-Mahon-Plage 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 Fort-Mahon-Plage.
UV Risk Categories
Weather in Fort-Mahon-Plage varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fort-Mahon-Plage, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 83 mm (3.3 inches) | 91% | low |
| February Weather | 7°C (44°F) | 75 mm (3.0 inches) | 89% | low |
| March Weather | 8°C (47°F) | 82 mm (3.2 inches) | 86% | moderate |
| April Weather | 10°C (51°F) | 31 mm (1.2 inches) | 85% | high |
| May Weather | 13°C (55°F) | 72 mm (2.8 inches) | 82% | high |
| June Weather | 16°C (62°F) | 65 mm (2.6 inches) | 81% | very high |
| July Weather | 18°C (65°F) | 50 mm (2.0 inches) | 76% | very high |
| August Weather | 18°C (65°F) | 79 mm (3.1 inches) | 73% | very high |
| September Weather | 16°C (62°F) | 71 mm (2.8 inches) | 80% | moderate |
| October Weather | 14°C (57°F) | 116 mm (4.6 inches) | 89% | moderate |
| November Weather | 10°C (49°F) | 101 mm (4.0 inches) | 92% | low |
| December Weather | 8°C (46°F) | 146 mm (5.7 inches) | 92% | low |