Bonn weather in September (North Rhine-Westphalia, Germany)

How is September weather typically in Bonn? Check out this detailed guide to the month’s weather conditions.

Temperatures

You’ll find the weather in Bonn during September to be perfect, with pleasant temperatures and moderate rainfall. During the daylight hours, temperatures often reach 20°C. After dark they usually decrease to around 11°C.

Precipitation

Bonn in September usually receives moderate rainfall, averaging around 72 mm for the month. Historically, the month has about 15 days of rain.

Average sunshine

Expect a moderate amount of sunlight, with approximately 142 hours. This means a pleasant mix of sun and clouds.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Bonn. June, July, August and September typically offer the most agreeable circumstances. On the other hand, January, February, 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 Bonn climate page with graphs.

 

Bonn, monthly averages in September

Min Temperature 11°C  

Max Temperature 20°C  

Chance of Rain 48%  

Precipitation 72 mm  

Rainy days 15 days  

Sunshine 142 hours  

Percentage Sunshine  

Where to go in Germany in September

Find out more about the weather in Germany and which places have the best travel 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 this month?

For visitors traveling to Bonn, 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.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Bonn.

Our site offers climate and forecast data for every country in the world. Are you going to Germany? On this website you can find historical weather averages for many cities in Germany. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.