Average weather in September in St. Moritz (Grisons), Switzerland

The average minimum temperature (usually the minimum temperature is noted during the night) in St. Moritz in September is 0.0°C (32°F). The amount of rain/snow in September is normal with an average of 83mm (3.3in). The average maximum daytime temperature lies around 15.0°C (59°F). Bring a thick blanket because during the night it can cool down to temperatures below freezing. The sun will occasionally show itself with 166 hours of sunshine during the whole month.


So what to wear in September? Visitors traveling to St. Moritz should plan on bringing a totally waterproof rain jacket since it will often be raining. You can also expect some days or nights with snow. So bring gloves or mittens and wear a warm hat.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.

Monthly Averages in September

Show in Celsius

Min Temperature 32 °F
Max Temperature 59 °F
Precipitation 3 in
Sunshine Hours 166

Where to stay in St. Moritz

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Swimming
5/10
Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
9/10

Weather Forecasts for St. Moritz (Grisons)

FRI Jan 21
16°F | -8°F
Light freezing rain

Light freezing rain

SAT Jan 22
24°F | -5°F
Cloudy

Cloudy

SUN Jan 23
34°F | 6°F
Partly cloudy

Partly cloudy

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in St. Moritz.

Our site offers climate and forecast data for almost all countries in the world. Are you going to Switzerland? On this website you can find historical weather averages for many cities in Switzerland. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.