Last updated: August 27, 2025
In December, the average temperature in Orsieres, Switzerland hovers around -8°C (17°F). Temperatures can dip as low as -25°C (-12°F), while peaking at a mild 5°C (41°F). Expect about 203 mm (8.0 in) of precipitation spread over 18 days, with an average humidity level of 90%, making the atmosphere quite chilly and moist.
In December in Orsieres, the average temperature is -8°C (17°F). Maximums can reach 5°C (41°F) and minimums can be as low as -25°C (-12°F). Travelers should be prepared for extremely cold conditions and dress warmly if visiting during this time.
In Orsieres in December, the precipitation amount is 203 mm (8.0 in) over the course of 18 days.
In Orsieres in December, humidity is 90%. With an average temperature of -8°C (17°F), this humidity feels like stepping into a thick, icy fog that clings to your skin, making travel feel heavy and uncomfortable as you navigate the damp chill that seeps into your bones.
In Orsieres 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 Orsieres, you can visit Hourly UV Index in Orsieres.
UV Risk Categories
Weather in Orsieres varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Orsieres, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 137 mm (5.4 inches) | 91% | moderate |
| February Weather | -6°C (21°F) | 96 mm (3.8 inches) | 87% | moderate |
| March Weather | -4°C (25°F) | 123 mm (4.8 inches) | 84% | very high |
| April Weather | 0°C (32°F) | 74 mm (2.9 inches) | 83% | very high |
| May Weather | 4°C (40°F) | 153 mm (6.0 inches) | 78% | very high |
| June Weather | 10°C (50°F) | 114 mm (4.5 inches) | 75% | extreme |
| July Weather | 12°C (54°F) | 125 mm (4.9 inches) | 72% | very high |
| August Weather | 12°C (53°F) | 124 mm (4.9 inches) | 63% | very high |
| September Weather | 8°C (46°F) | 82 mm (3.2 inches) | 73% | high |
| October Weather | 3°C (38°F) | 123 mm (4.8 inches) | 89% | high |
| November Weather | -4°C (25°F) | 103 mm (4.0 inches) | 90% | moderate |
| December Weather | -8°C (17°F) | 203 mm (8.0 inches) | 90% | low |