Last updated: August 23, 2025
In December, the average temperature in Wellen, Germany hovers around 4°C (39°F), with extremes ranging from a brisk -12°C (10°F) to a mild 14°C (57°F). Expect about 57 mm (2.3 in) of precipitation spread over 14 days, and prepare for the high humidity levels, averaging at a cozy 92%.
In December in Wellen, the average temperature is 4°C (39°F). Maximum temperatures can reach 14°C (57°F), while minimum temperatures can drop as low as -12°C (10°F). Be prepared for chilly conditions, and pack layered clothing to stay comfortable during your travels.
In Wellen in December, the precipitation amount is 57 mm (2.3 in) over a span of 14 days.
In Wellen in December humidity is 92%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel feel burdensome as you navigate through the thick, muggy air.
In Wellen 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 Wellen.
UV Risk Categories
Weather in Wellen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Wellen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (37°F) | 50 mm (2.0 inches) | 91% | low |
| February Weather | 3°C (38°F) | 48 mm (1.9 inches) | 89% | low |
| March Weather | 5°C (42°F) | 54 mm (2.1 inches) | 87% | moderate |
| April Weather | 9°C (49°F) | 34 mm (1.3 inches) | 83% | moderate |
| May Weather | 14°C (57°F) | 57 mm (2.3 inches) | 78% | high |
| June Weather | 19°C (67°F) | 63 mm (2.5 inches) | 77% | very high |
| July Weather | 19°C (67°F) | 76 mm (3.0 inches) | 77% | high |
| August Weather | 20°C (68°F) | 58 mm (2.3 inches) | 75% | high |
| September Weather | 15°C (60°F) | 53 mm (2.1 inches) | 82% | moderate |
| October Weather | 11°C (53°F) | 56 mm (2.2 inches) | 86% | moderate |
| November Weather | 6°C (44°F) | 43 mm (1.7 inches) | 89% | low |
| December Weather | 4°C (39°F) | 57 mm (2.3 inches) | 92% | low |