Basel weather in September (Canton of Basel-Stadt, Switzerland)

Looking to travel to Basel in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In Basel the weather in September is generally perfect, characterized by pleasant temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 21°C. But by evening, they drop to around 10°C.

Basel in September usually receives moderate rainfall, averaging around 97 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 12 days of the month will see rainfall.

The area enjoys a balanced 162 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. September generally stands out with the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

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

 

Basel, monthly averages in September

Min Temperature 10°C  

Max Temperature 21°C  

Chance of Rain 41%  

Precipitation 97 mm  

Rainy days 12 days  

Humidity 77%  

Sunshine 162 hours  

Percentage Sunshine 47%  

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 Basel in September?

For visitors traveling to Basel, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

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

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.