Last updated: August 27, 2025
In December, the average temperature in Attiswil, Switzerland is 2°C (36°F). You'll experience a minimum temperature of -7°C (20°F) and a maximum of 13°C (57°F). Expect about 130 mm (5.1 in) of precipitation spread over 19 days, with an average humidity level of 91%. Embrace the chill and prepare for a wet, cool month!
In December in Attiswil, the average temperature is 2°C (36°F). The maximum can reach 13°C (57°F) and the minimum can be as low as -7°C (20°F). Be sure to pack warm clothing for your trip, as temperatures can be quite chilly during this time.
In Attiswil in December, the total precipitation amount is 130 mm (5.1 in), occurring over a span of 19 days.
In Attiswil in December humidity is 91%. With an average temperature of 2°C (36°F), this humidity feels like a damp chill that clings to your skin, making every step outside a reminder of the cold, crisp air that sharpens your senses but can also dampen your spirits as you navigate the wet conditions.
In Attiswil 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 Attiswil, you can visit Hourly UV Index in Attiswil.
UV Risk Categories
Weather in Attiswil varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Attiswil, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 97 mm (3.8 inches) | 91% | low |
| February Weather | 3°C (38°F) | 80 mm (3.1 inches) | 89% | moderate |
| March Weather | 6°C (42°F) | 97 mm (3.8 inches) | 87% | moderate |
| April Weather | 9°C (49°F) | 69 mm (2.7 inches) | 84% | high |
| May Weather | 13°C (55°F) | 149 mm (5.9 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 134 mm (5.3 inches) | 82% | very high |
| July Weather | 19°C (67°F) | 140 mm (5.5 inches) | 82% | very high |
| August Weather | 19°C (66°F) | 145 mm (5.7 inches) | 77% | very high |
| September Weather | 15°C (59°F) | 77 mm (3.0 inches) | 81% | high |
| October Weather | 10°C (50°F) | 102 mm (4.0 inches) | 89% | moderate |
| November Weather | 4°C (40°F) | 79 mm (3.1 inches) | 89% | low |
| December Weather | 2°C (36°F) | 130 mm (5.1 inches) | 91% | low |