World Resorts Switzerland St Moritz Weather

St Moritz weather in May

Weather in St Moritz: May

Average day temperature: 43.2°F
Average night temperature: 28.0°F
Number of sunny days: 3 days
Day length: 14.4 - 15.5 hours
Number of days with precipitation: 10 days
Precipitation totals: 6.1 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 58°F. At the same time the lowest night temperature was 15°F. Daily and nightly averages during May were 41.3°F and 28.4°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in May, in.

Precipitation total value in St Moritz in May is 6.4 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 5.4 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 May is: 4.2.

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 24.3 °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
+16°F
SW 3 mph
Feels like: +12°F
Precip.: 0%
Places in Switzerland:
Name
°F
+30°F
+25°F
+27°F
+23°F
+27°F
+21°F
+28°F
+32°F
+28°F
+32°F
+32°F
+28°F
+27°F
+28°F
+27°F
24 Hours Forecast
St Moritz
Local time: 07:22
December 28, sunday
0900
18°F
SW
4 mph
1200
39°F
SW
4 mph
1500
36°F
W
2 mph
1800
19°F
N
5 mph
2100
18°F
N
6 mph
December 29, monday
0000
16°F
N
6 mph
0300
18°F
N
4 mph
0600
16°F
NW
1 mph
Units of measurement: °C / °F