Illmensee weather in September (Baden-Württemberg, Germany)

Planning a trip to Illmensee in September? Check out this comprehensive weather guide.

In Illmensee the weather in September is generally perfect, characterized by pleasant temperatures and moderate rainfall. Anticipate daytime temperatures around 20°C, while night temperatures can drop to 11°C.

Illmensee in September usually receives moderate rainfall, averaging around 98 mm for the month. When we look at the climate data from the last 30 years, we can expect around 13 days of rain.

The city usually sees around 155 hours of sunlight, indicating a moderately sunny period.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Illmensee. September typically offers the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

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

 

Illmensee, monthly averages in September

Min Temperature 11°C  

Max Temperature 20°C  

Chance of Rain 42%  

Precipitation 98 mm  

Rainy days 13 days  

Humidity 78% *  

Sunshine 155 hours *  

Percentage Sunshine 44% *  

* Data from: St. Gallen, Switzerland (48 KM, 30 Miles).

Where to go in Germany in September

Find out more about the weather in Germany 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 Illmensee in September?

For visitors traveling to Illmensee, 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 Illmensee.

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 climate conditions. Find out where to go with our weather planner.