Last updated: August 27, 2025
In Saas-Grund, Switzerland, the average temperature in December hovers around -8°C (18°F). Expect chilly conditions, with minimum temperatures dipping to -23°C (-9°F) and a maximum of 3°C (38°F). Rain and snow are part of the mix, with 137 mm (5.4 in) of precipitation spread across 15 days. With an elevated average humidity of 85%, be prepared for a brisk and damp winter experience!
In December in Saas-Grund, the average temperature is -8°C (18°F). Maximum temperatures can reach 3°C (38°F), while the minimum can drop as low as -23°C (-9°F). Be prepared for chilly weather and pack warm clothing if you plan to travel during this time.
In Saas-Grund in December, the precipitation amount is 137 mm (5.4 in) over the course of 15 days.
In Saas-Grund in December humidity is 85%. With an average temperature of -8°C (18°F), this humidity feels like an icy blanket that clings to your skin, making outdoor travel chillingly uncomfortable despite the cold air.
In Saas-Grund 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 Saas-Grund, you can visit Hourly UV Index in Saas-Grund.
UV Risk Categories
Weather in Saas-Grund varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saas-Grund, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 111 mm (4.4 inches) | 88% | moderate |
| February Weather | -6°C (21°F) | 65 mm (2.6 inches) | 81% | moderate |
| March Weather | -4°C (25°F) | 120 mm (4.7 inches) | 76% | high |
| April Weather | 0°C (32°F) | 175 mm (6.9 inches) | 77% | very high |
| May Weather | 4°C (40°F) | 221 mm (8.7 inches) | 74% | very high |
| June Weather | 10°C (50°F) | 281 mm (11.1 inches) | 71% | very high |
| July Weather | 12°C (53°F) | 253 mm (10.0 inches) | 67% | very high |
| August Weather | 11°C (52°F) | 281 mm (11.1 inches) | 64% | very high |
| September Weather | 8°C (46°F) | 164 mm (6.5 inches) | 74% | high |
| October Weather | 3°C (37°F) | 267 mm (10.5 inches) | 87% | moderate |
| November Weather | -3°C (26°F) | 209 mm (8.2 inches) | 88% | moderate |
| December Weather | -8°C (18°F) | 137 mm (5.4 inches) | 85% | low |