Last updated: August 27, 2025
In December, the average temperature in Bolligen, Switzerland hovers around 2°C (37°F). You can expect the temperatures to range from a chilly -6°C (21°F) to a mild 14°C (57°F). With precipitation reaching 125 mm (4.9 in) over 18 days, and an average humidity of 91%, prepare for a damp and cool atmosphere while exploring this picturesque locale!
In December, in Bolligen, the average temperature is 2°C (37°F). Maximum can reach 14°C (57°F), and minimum can be as low as -6°C (21°F). Be sure to pack warm layers and be prepared for chilly conditions when traveling during this time.
In Bolligen in December, the precipitation amount is 125 mm (4.9 in) spread over 18 days.
In Bolligen in December, humidity is 91%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm and dry.
In Bolligen 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 Bolligen, you can visit Hourly UV Index in Bolligen.
UV Risk Categories
Weather in Bolligen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bolligen, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 91 mm (3.6 inches) | 91% | low |
| February Weather | 4°C (39°F) | 74 mm (2.9 inches) | 89% | moderate |
| March Weather | 6°C (43°F) | 91 mm (3.6 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 61 mm (2.4 inches) | 84% | high |
| May Weather | 13°C (56°F) | 126 mm (5.0 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 93 mm (3.7 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 104 mm (4.1 inches) | 82% | very high |
| August Weather | 19°C (67°F) | 98 mm (3.8 inches) | 77% | very high |
| September Weather | 15°C (60°F) | 61 mm (2.4 inches) | 81% | high |
| October Weather | 11°C (51°F) | 95 mm (3.7 inches) | 89% | moderate |
| November Weather | 5°C (41°F) | 72 mm (2.8 inches) | 89% | low |
| December Weather | 2°C (37°F) | 125 mm (4.9 inches) | 91% | low |