Last updated: August 23, 2025
In December, the average temperature in Biwer, Luxembourg hovers around 4°C (39°F), with variations ranging from a chilly -5°C (23°F) to a mild 14°C (57°F). Expect a significant precipitation amount of 111 mm (4.4 in) spread across 18 days, leading to a notably high average humidity of 93%. Prepare for a damp and cool month!
In December in Biwer, the average temperature is 4°C (39°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -5°C (23°F). It's a good idea to pack warm layers and prepare for varying weather conditions while traveling to Biwer.
In Biwer in December, the precipitation amount is 111 mm (4.4 in) over the course of 18 days.
In Biwer in December, humidity is 93%. With an average temperature of 4°C (39°F), this humidity feels like a damp, chilly blanket that clings to your skin, making outdoor exploration uncomfortable and necessitating extra layers to stay warm and dry.
In Biwer 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 Biwer.
UV Risk Categories
Weather in Biwer varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Biwer, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 67 mm (2.6 inches) | 91% | low |
| February Weather | 4°C (39°F) | 70 mm (2.7 inches) | 90% | moderate |
| March Weather | 6°C (43°F) | 76 mm (3.0 inches) | 88% | moderate |
| April Weather | 9°C (49°F) | 40 mm (1.6 inches) | 84% | high |
| May Weather | 13°C (56°F) | 69 mm (2.7 inches) | 81% | very high |
| June Weather | 18°C (64°F) | 69 mm (2.7 inches) | 82% | very high |
| July Weather | 19°C (66°F) | 72 mm (2.9 inches) | 82% | very high |
| August Weather | 19°C (66°F) | 64 mm (2.5 inches) | 80% | high |
| September Weather | 15°C (59°F) | 58 mm (2.3 inches) | 83% | high |
| October Weather | 11°C (51°F) | 74 mm (2.9 inches) | 89% | moderate |
| November Weather | 5°C (42°F) | 65 mm (2.6 inches) | 91% | low |
| December Weather | 4°C (39°F) | 111 mm (4.4 inches) | 93% | low |