St. Moritz weather in December
December in St. Moritz: freezing, rainy, with clean air — a good time to visit.
#8 of 12 months in St. Moritz · #339 of 604 destinations to visit in December · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
St. Moritz climate normals — December
| Daytime high | -3°C / 27°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -10°C / 14°F | |
| Feels like (high) | -7°C / 19°F | |
| Rainfall | 116 mm / 4.6 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | -9°C / 16°F | |
| Sunshine | 5.2 h/day | |
| Daylight | 8.6 h | |
| Wind | 8 km/h / 5 mph | |
| Snowfall | 121.9 cm / 48 in | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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St. Moritz in December — FAQ
- Is December a good time to visit St. Moritz?
- December in St. Moritz: freezing, rainy, with clean air — a good time to visit. It ranks #8 of 12 months for St. Moritz on SeasonMap's comfort score (68/100).
- What is the weather like in St. Moritz in December?
- In December, St. Moritz averages a daily high of -3°C and a low of -9.8°C, with about 115.9 mm of rain over roughly 13.2 rainy days.
- What is the air quality in St. Moritz in December?
- St. Moritz has a mean US Air Quality Index of about 38 in December.
- Does it snow in St. Moritz in December?
- St. Moritz sees roughly 121.9 cm of snowfall in December.