Weather in St Moritz: August
| Average day temperature: | 59.9°F | |
| Average night temperature: | 40.0°F | |
| Number of sunny days: | 9 days | |
| Day length: | 13.4 - 14.8 hours | |
| Number of rainy days: | 11 days | |
| Precipitation totals: | 6.9 in. | |
| more information | ||
14 days
forecast
forecast
| St Moritz |
weather in
September
September
| St Moritz |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 72°F. At the same time the lowest night temperature was 29°F. Daily and nightly averages during August were 60.0°F and 39.0°F.
Sunny, partly cloudy and cloudy days
Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in St Moritz in August is 7.7 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 5.1 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 August is: 7.3.
Best time for vacation in St Moritz
St Moritz on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
St Moritz
Local time: 09:20
December 05, friday
1200

25°F
S
6 mph
6 mph
1500

25°F
S
6 mph
6 mph
1800

16°F
SW
5 mph
5 mph
2100

3°F
NW
3 mph
3 mph
December 06, saturday
0000

7°F
N
6 mph
6 mph
0300

9°F
N
5 mph
5 mph
0600

10°F
N
4 mph
4 mph
0900

12°F
N
3 mph
3 mph


























