Düsseldorf Weather in September
September in Düsseldorf typically sees daytime highs of 21°C (70°F) and nighttime lows of 11°C (52°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Düsseldorf in September
Typically around 15 days of rainfall are expected, averaging 79 mm (3.1 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Düsseldorf in September
September tends to be one of the perfect months in Düsseldorf, with 21°C (70°F) in the afternoon and 11°C (52°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Düsseldorf in September
The month experiences a moderate amount of sunlight, with 142 hours of sunshine. This provides a nice balance between sunshine and clouds.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Düsseldorf's climate page.
Düsseldorf Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
21°C (70°F)
Chance of Rain
50%
Precipitation
79 mm (3.1 in)
Rainy days
15 days
Humidity
77%
Sunshine
142 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Düsseldorf typically drop from around 21°C (70°F) at the start of September to approximately 18°C (64°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Düsseldorf in September
Browse day-by-day weather records for Düsseldorf spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Düsseldorf historical weather extremes in September
Based on weather observations in Düsseldorf between 1976 and 2025, these are the recorded extremes during September.
- The warmest day in September was on September 15, 2020, with a maximum of 34°C (93°F).
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 17, 1986.
- Nighttime temperatures dropped to 2°C (36°F) on September 29, 2018, marking the coldest September night on record.
Best Places in Germany in September
Find out more about the weather in Germany and which places have the best travel conditions in this month. See all of Germany in September →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Düsseldorf in September
For Düsseldorf in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Düsseldorf in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Düsseldorf's climate page.
Temperature Rainfall Sunshine Humidity
See the full Düsseldorf climate overview or explore weather in Germany.
