World Resorts Switzerland St Moritz Weather

St Moritz weather in December

Weather in St Moritz: December

Average day temperature: 24.2°F
Average night temperature: 11.5°F
Number of sunny days: 10 days
Day length: 8.6 - 8.9 hours
Number of days with precipitation: 4 days
Precipitation totals: 2.8 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 37°F. At the same time the lowest night temperature was 1°F. Daily and nightly averages during December were 31.7°F and 15.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in St Moritz in December is 3.0 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 5.9 mph The wind's strength is relatively same during the whole year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.6.

Best time for vacation in St Moritz

Sunniest months:
December 10 days
October 9 days
August 9 days
Warmest months:
August 59.9 °F
July 59.7 °F
June 56.2 °F
Coldest months:
January 22.1 °F
December 24.2 °F
February 26.0 °F
Rainiest months:
July 13 days
June 12 days
August 11 days
Windiest months:
January 6.1 mph
February 5.9 mph
December 5.8 mph

St Moritz on a weather map

St Moritz
+0°F
S 3 mph
Feels like: -8°F
Precip.: 0%
Places in Switzerland:
Name
°F
+25°F
+21°F
+21°F
+12°F
+21°F
+12°F
+25°F
+28°F
+28°F
+21°F
+25°F
+21°F
+25°F
+12°F
+23°F
24 Hours Forecast
St Moritz
Local time: 20:46
December 31, wednesday
2100
0°F
S
3 mph
January 01, thursday
0000
1°F
S
2 mph
0300
3°F
SW
2 mph
0600
3°F
S
1 mph
0900
5°F
S
1 mph
1200
28°F
NE
5 mph
1500
23°F
NE
6 mph
1800
1°F
N
6 mph
Units of measurement: °C / °F