Ernen weather in September (Canton of Valais, Switzerland)

How is the weather in Ernen in September? This guide provides all the details you need.

In September, Ernen generally has low temperatures and heavy rainfall. Throughout the day, temperatures typically settle at around 12°C. But by evening, they drop to around 2°C.

Ernen in September usually receives heavy rainfall, averaging around 170 mm for the month. Typically around 15 days of rainfall is expected.

The area experiences a moderate amount of sunshine, with approximately 149 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If your ideal day consists of dry skies and moderate temperatures generally stand out with the best circumstances. While tend to showcase less optimal conditions.

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

 

Ernen, monthly averages in September

Min Temperature 2°C  

Max Temperature 12°C  

Chance of Rain 50%  

Precipitation 170 mm  

Rainy days 15 days  

Humidity 80% *  

Sunshine 149 hours *  

Percentage Sunshine 52% *  

* Data from: Interlaken, Switzerland (35 KM, 22 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

Map not visible? Whoops sorry! Please refresh the page.

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 Ernen 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 Ernen.

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.