Sils Maria weather in September (Grisons, Switzerland)

How is the weather in Sils Maria in September? Check out this comprehensive weather guide.

In September, Sils Maria generally has moderate temperatures and high rainfall. Anticipate daytime temperatures around 12°C, while night temperatures can drop to 3°C.

Sils Maria in September usually receives high rainfall, averaging around 126 mm for the month. Based on our climate data of the past 30 years, about 15 days of rain are anticipated.

The area enjoys a balanced 156 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Sils Maria. June, July and August typically offer the most agreeable circumstances. On the other hand, January, February, March, April, May, September, October, November and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Sils Maria climate page with graphs.

 

Sils Maria, monthly averages in September

Min Temperature 3°C  

Max Temperature 12°C  

Chance of Rain 51%  

Precipitation 126 mm  

Rainy days 15 days  

Humidity 76% *  

Sunshine 156 hours *  

Percentage Sunshine 58% *  

* Data from: Saint Moritz, Switzerland (10 KM, 6 Miles).

Where to go in Switzerland in September

Find out more about the weather in Switzerland in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Sils Maria in September?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

5/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Sils Maria.

Our site offers climate and forecast data for every country 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 recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.