Weather in September 2025

Graubunden weather in September 2025

The weather in Graubunden in September is very cold with temperatures between 2°C and 15°C, warm clothes are a must.

You can expect rain for roughly half of the month of September in Graubunden. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Please note that Graubunden can expect a few days of snow in September.

Our weather forecast can give you a great sense of what weather to expect in Graubunden in September 2025.

If you’re planning to visit Graubunden in the near future, we highly recommend that you review the 14 day weather forecast for Graubunden before you arrive.

Temperatures
Temperatures
15° / 2°
Rainy Days
Rainy Days
10
Snowy Days
Snowy Days
2
Dry Days
Dry Days
18
Rainfall
Rainfall
115
mm
10.7
Sun Hours
10.7
Hrs

Graubunden annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January -2° / -13° 6 5 21 119 mm
Awful
February -1° / -13° 5 5 20 84 mm
Awful
March 2° / -9° 8 5 20 97 mm
Awful
April 7° / -5° 10 5 15 114 mm
Awful
May 11° / -1° 17 6 9 166 mm
Awful
June 16° / 3° 16 13 1 199 mm
Ok
July 18° / 5° 16 15 0 176 mm
Ok
August 18° / 5° 14 17 0 194 mm
Ok
September 15° / 2° 10 18 2 115 mm
Bad
October 9° / -2° 6 17 8 111 mm
Bad
November 4° / -6° 6 10 15 113 mm
Awful
December -1° / -11° 5 7 20 115 mm
Awful
Temperatures in Graubunden in September
Rain in Graubunden in September

Recommended Hotels in Graubunden

We know that finding the ideal hotel in Graubunden can be a hard task...

That’s why we run our special tools and found the best hotels in Graubunden. Click on hotel for more details.

Weather in Graubunden in September - FAQ

What is the average temperature in Graubunden in September?
The average temperature in Graubunden in September is 2/15° C.
What is the chance of rain in Graubunden in September?
On average, there are 10 rainy days in Graubunden during September.
Weather wise, is September a good time to visit Graubunden?
The weather in Graubunden in September is bad.
Can it snow in Graubunden in September?
On average, there are 2 snowy days in Graubunden in September.
Cities in Graubunden

For a more accurate weather forecast please select a city

See more locations
More about the weather in Graubunden