Last updated: August 23, 2025
In December, the average temperature in Bierne, France hovers around 7°C (45°F). Expect chilly moments, as temperatures can dip to a minimum of -3°C (27°F), while highs can reach up to 16°C (61°F). Rainy days are frequent, with an average precipitation total of 99 mm (3.9 in) over about 14 days. The air is quite humid, with an average humidity level of 90%, so be prepared for a damp but vibrant atmosphere!
In December in Bierne, the average temperature is 7°C (45°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -3°C (27°F). Be prepared for a mix of cool and chilly weather, ideal for layering and enjoying outdoor activities.
In Bierne in December, the precipitation amount is 99 mm (3.9 in) over the course of 14 days.
In Bierne in December humidity is 90%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting travelers to seek shelter indoors or in cozy cafes.
In Bierne in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Bierne, you can visit Hourly UV Index in Bierne.
UV Risk Categories
Weather in Bierne varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bierne, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (42°F) | 48 mm (1.9 inches) | 88% | low |
| February Weather | 7°C (45°F) | 62 mm (2.4 inches) | 87% | moderate |
| March Weather | 9°C (48°F) | 66 mm (2.6 inches) | 84% | moderate |
| April Weather | 12°C (53°F) | 44 mm (1.7 inches) | 83% | high |
| May Weather | 15°C (59°F) | 63 mm (2.5 inches) | 81% | very high |
| June Weather | 19°C (66°F) | 90 mm (3.6 inches) | 75% | very high |
| July Weather | 20°C (69°F) | 39 mm (1.5 inches) | 65% | very high |
| August Weather | 20°C (68°F) | 42 mm (1.7 inches) | 67% | very high |
| September Weather | 17°C (63°F) | 43 mm (1.7 inches) | 75% | high |
| October Weather | 13°C (56°F) | 86 mm (3.4 inches) | 85% | moderate |
| November Weather | 8°C (47°F) | 75 mm (3.0 inches) | 88% | low |
| December Weather | 7°C (45°F) | 99 mm (3.9 inches) | 90% | low |