Measurements:
°C
°F
St Moritz
44°F
N 6 mph
Feels like: 42°F
Precip: 7%
World Resorts Switzerland St Moritz Weather September Weather in St Moritz

St Moritz Weather: September

Average Day Temperature: 52.4°F
Average Night Temperature: 32.3°F
Number of Sunny Days: 9 days
Sunshine Hours: 11.8 - 13.3 hours
Number of Rainy Days: 5 days
Precipitation Totals: 3.8 in

Air Temperature in September, °F

Select Year: 2026 2025 2024

The highest day temperature in September 2026 was 66°F. The lowest night temperature was 31°F. The average values for day and night temperatures during September were 53.8°F и 39.3°F respectivly.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in September, in

Precipitation total in September for St Moritz is 3.8 in.

Wind Speed in September, mph

The average wind speed in September is 5.2 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for St Moritz in September is 6.3 hours.

Best Time to Visit St Moritz
The most sunny months:
December 10 days
October 9 days
November 9 days
The most warm months:
August 61.0 °F
July 61.0 °F
June 57.0 °F
The most cold months:
January 19.1 °F
December 21.3 °F
February 23.5 °F
The most rainy months:
July 12 days
August 11 days
June 11 days
The most windy months:
January 6 mph
February 6 mph
December 6 mph

St Moritz on the Weather Map

Switzerland Resorts:
NAME
F°
Berne +64
Geneva +68
Gstaad +52
Interlaken +62
Lake Geneva +66
Lausanne +72
Lugano +58
Montreux +58
Spitz +64
St Gallen +68
Verbier +46
Vevey +58
Winterthur +62
Zermatt +38
Zurich +64
24 Hours Weather Forecast
St Moritz
Local time: 01:11
29 sep, tuesday
0300 42°F
N
6 mph
0600 42°F
N
5 mph
0900 48°F
N
6 mph
1200 54°F
N
6 mph
1500 56°F
NE
7 mph
1800 52°F
N
6 mph
2100 42°F
N
7 mph
30 sep, wednesday
0000 40°F
N
7 mph