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Dusseldorf in September: Weather, Average temperature and Climate

Discover the weather for Dusseldorf in September and if it’s a good time to travel (based on historical data).
Check flight prices to Dusseldorf on Avionero:
September

Weather in Dusseldorf in September 2025

OK Weather
Mild
🌧️
Rainy
September could be a good time to visit Dusseldorf, as the weather is generally fine. The average high temperature is around +66°F, and there are typically 6 sunny days in September. However, expect about 16 rainy days, and total monthly rainfall of approximately 60 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+66°F
Avg. max. temperature
+36°F
Min.
+91°F
Max.
60 mm
Total precipitation
76%
Avg. humidity
2 m/s
Avg. wind
6 ☀️
Sunny Days
7 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Dusseldorf has OK weather in September.

Average temperature in Dusseldorf in September

Here are the expected maximum, average and minimum temperatures in Dusseldorf for September based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in September is +75°F with a maximum of +88°F and a minimum of +50°F.

The average maximum temperature goes down 10% by the end of the month, compared with the beginning of the month, from +70°F to +66°F.

Is Dusseldorf warm or cold in September?

Dusseldorf is typically mild in September.

Maximum temperatures go down compared to the previous month from +73°F to +66°F. The minimum temperature also goes down from +57°F to +52°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how September is compared to other months in Dusseldorf:

Climate in Dusseldorf in September

Dusseldorf weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+73°F+66°F+59°F
Min. temperature
+43°F+36°F+23°F
Max. temperature
+99°F+91°F+81°F
Rainfall
68 mm60 mm69 mm
Wind
2 m/s2 m/s3 m/s
Humidity
71%76%80%
Air pressure
1015 HPa1016 HPa1015 HPa
Sunny days
665
Cloudy days
679
Rainy days
161616
Snowy days
000

September typically has worse weather conditions compared to August. It’s getting colder in September. From +73°F in the day, the average maximum temperature lowers to +66°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 68 mm to 60 mm. Humidity rises from 71% to 76%. The average wind speed doesn’t change much during September, staying around 2 m/s. The amount of sunny days stay about the same, averaging 6 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Dusseldorf in September based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Dusseldorf is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Dusseldorf based on historical data.
Last Year
Historical Data
Total precipitation in September is about 98 mm, with a 43% chance of rain on a typical day. The maximum amount of rainfall per day is around 27 mm, which is moderate rain. September is a pretty wet month with over 13 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Dusseldorf wettest month is December, where a typical day has a 48% chance of precipitation and 75 mm of rainfall per day. April, on the other hand, is the driest month with a mere 50% chance of precipitation and 49 mm of rainfall per day.

How was the weather last September in Dusseldorf?

This is the weather in Dusseldorf in September 2023:
1 September
☀️
+69°F
2 September
☀️
+74°F
3 September
☀️
+75°F
4 September
☀️
+81°F
5 September
☀️
+85°F
6 September
☀️
+86°F
7 September
☀️
+86°F
8 September
☀️
+87°F
9 September
☀️
+86°F
10 September
☀️
+88°F
11 September
☀️
+86°F
12 September
☀️
+77°F
13 September
☁️
+68°F
14 September
☀️
+70°F
15 September
☀️
+74°F
16 September
☀️
+79°F
17 September
☀️
+79°F
18 September
☀️
+77°F
19 September
☀️
+70°F
20 September
☀️
+75°F
21 September
☀️
+72°F
22 September
☀️
+67°F
23 September
☀️
+64°F
24 September
☀️
+69°F
25 September
☀️
+72°F
26 September
☀️
+73°F
27 September
☀️
+75°F
28 September
☀️
+71°F
29 September
☀️
+72°F
30 September
☀️
+66°F
In September 2023 Dusseldorf had 29 sunny days, 1 cloudy days, and 0 rainy days. The average maximum temperature was +75°F, with an absolute maximum of +88°F and a minimum of +64°F. The average humidity was 79%, with a maximum of 100% and a minimum of 47%. The average wind speed was 3 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Dusseldorf climate has changed over the last 43 years.

The climate in Dusseldorf in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1985 (+54°F) and the highest in 2022 (+62°F). The driest year was 1991 with only 566 mm of rainfall, and the wettest year was 2023 with 1469 mm.

FAQ

Frequently asked questions about the weather in Dusseldorf in September:

Is September a good time to visit Dusseldorf?

It’s always a good time to visit Dusseldorf, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Dusseldorf in September?

September has mild temperatures in Dusseldorf. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Dusseldorf rainy in September?

Dusseldorf is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Dusseldorf in September?

Usually, it’s not very sunny in Dusseldorf in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Germany

Check out the weather for other cities in Germany.

Monthly weather in Dusseldorf

Source of the data

For this page, we’ve looked at the typical weather in Dusseldorf, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.