Last updated: August 23, 2025
In Thionville, France, the average temperature in December hovers around 4°C (40°F). You might experience chilly days, with temperatures dipping to a brisk -6°C (22°F) and peaking at a mild 15°C (59°F). Prepare for some rain, as the region sees about 115 mm (4.5 in) of precipitation spread over 19 days. Plus, don't forget to account for the high humidity, averaging a damp 93%!
In December in Thionville, the average temperature is 4°C (40°F), with maximums reaching 15°C (59°F) and minimums dropping as low as -6°C (22°F). It's advisable to pack warm clothing and prepare for chilly conditions if you're planning to visit.
In Thionville in December, the precipitation amount is 115 mm (4.5 in) over a span of 19 days.
In Thionville in December, humidity is 93%. With an average temperature of 4°C (40°F), this humidity feels like a cold, damp blanket wrapping around you, making travel uncomfortable and requiring extra layers to stay warm, as every step can feel heavy in the thick, moisture-laden air.
In Thionville 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 Thionville.
UV Risk Categories
Weather in Thionville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Thionville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 71 mm (2.8 inches) | 91% | low |
| February Weather | 5°C (40°F) | 72 mm (2.8 inches) | 90% | moderate |
| March Weather | 7°C (44°F) | 70 mm (2.8 inches) | 88% | moderate |
| April Weather | 10°C (51°F) | 38 mm (1.5 inches) | 84% | high |
| May Weather | 14°C (57°F) | 70 mm (2.8 inches) | 81% | very high |
| June Weather | 19°C (66°F) | 67 mm (2.6 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 65 mm (2.6 inches) | 82% | very high |
| August Weather | 20°C (68°F) | 47 mm (1.8 inches) | 80% | very high |
| September Weather | 16°C (60°F) | 63 mm (2.5 inches) | 83% | high |
| October Weather | 11°C (53°F) | 72 mm (2.8 inches) | 89% | moderate |
| November Weather | 6°C (43°F) | 70 mm (2.8 inches) | 91% | low |
| December Weather | 4°C (40°F) | 115 mm (4.5 inches) | 93% | low |