Last updated: August 27, 2025
In Sils im Domleschg, Switzerland, the average temperature in December hovers around -6°C (21°F). Expect chilly conditions, with minimums dropping to -26°C (-15°F) and a possible maximum of 6°C (42°F). The month also sees 130 mm (5.1 in) of precipitation, spread over 17 days, contributing to an average humidity of 90%. Stay warm and prepared for wet conditions!
In December in Sils im Domleschg, the average temperature is -6°C (21°F), with a maximum reaching 6°C (42°F) and a minimum plunging to as low as -26°C (-15°F). Travelers should be prepared for extremely cold conditions and pack accordingly to enjoy their time in this wintry destination.
In Sils im Domleschg in December, the total precipitation amount is 130 mm (5.1 in) over a span of 17 days.
In Sils im Domleschg in December humidity is 90%. With an average temperature of -6°C (21°F), this humidity feels like a heavy, icy mist that clings to your skin, making every breath feel sharp and cold, which can be quite challenging for traveling.
In Sils im Domleschg 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 Sils im Domleschg, you can visit Hourly UV Index in Sils im Domleschg.
UV Risk Categories
Weather in Sils im Domleschg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sils im Domleschg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 92 mm (3.6 inches) | 92% | low |
| February Weather | -4°C (25°F) | 66 mm (2.6 inches) | 89% | moderate |
| March Weather | -2°C (29°F) | 95 mm (3.7 inches) | 87% | high |
| April Weather | 2°C (36°F) | 93 mm (3.7 inches) | 84% | very high |
| May Weather | 6°C (43°F) | 157 mm (6.2 inches) | 80% | very high |
| June Weather | 11°C (53°F) | 148 mm (5.8 inches) | 82% | very high |
| July Weather | 12°C (54°F) | 148 mm (5.8 inches) | 83% | very high |
| August Weather | 12°C (54°F) | 201 mm (7.9 inches) | 80% | very high |
| September Weather | 8°C (47°F) | 136 mm (5.3 inches) | 83% | high |
| October Weather | 4°C (40°F) | 142 mm (5.6 inches) | 90% | moderate |
| November Weather | -2°C (29°F) | 104 mm (4.1 inches) | 88% | moderate |
| December Weather | -6°C (21°F) | 130 mm (5.1 inches) | 90% | low |