September Weather in Duesseldorf, Germany

Last updated: February 26, 2025

In Düsseldorf, Germany, September brings a tapestry of weather contrasts. Daily temperatures can soar to a maximum of 33°C (92°F), while the average rests at a mild 16°C (60°F), with nighttime lows dipping to 3°C (38°F). This month also sees a relatively humid environment, with humidity levels reaching 81%. Rainfall is not uncommon, as 65 mm (2.5 in) of precipitation typically falls over the course of 11 days. Whether basking in warm days or navigating the occasional shower, September in Düsseldorf offers a dynamic climate that beautifully bridges summer and autumn.

September Temperature in Duesseldorf

In September, Düsseldorf experiences a delightful transition from summer's warmth to autumn's crispness. With minimum temperatures averaging around 3°C (38°F) and a pleasant average of 16°C (60°F), this month offers a comfortable escape from the peak heat of summer. The maximum temperature can still reach up to 33°C (92°F), showcasing the lingering warmth of the season. As September progresses, the city begins to show signs of cooling, setting the stage for the approaching fall. Overall, this month stands out as a time of refreshing temperatures, inviting both locals and visitors to enjoy the vibrant streets and picturesque parks before the chill of winter rolls in.

September Weather in Duesseldorf: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Duesseldorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394145505766676760544541
Data source: Temperature data for Duesseldorf generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Duesseldorf

September in Düsseldorf brings a gentle embrace of autumn, characterized by an average precipitation of 65 mm (2.5 in) over 11 days. This marks a noticeable dip from the summer months, where rainfall peaks, particularly in July at 98 mm (3.9 in). The gradual decrease in precipitation reflects the transition towards a drier autumn, but September still retains a sense of moisture that's essential for the lush greenery of the city. This moderate rainfall, combined with cooler temperatures, sets the stage for the vibrant colors of fall, making it an ideal time for leisurely strolls through Düsseldorf's scenic parks and along the Rhine. The weather patterns suggest a shift towards the wetter conditions expected in October, which typically averages 106 mm (4.2 in), hinting at the cyclical nature of the region's climate.

September Precipitation Trends in Duesseldorf

The chart displays monthly precipitation patterns in Duesseldorf, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec78828241696998766510662114
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Duesseldorf

In September, Düsseldorf experiences a notable increase in humidity, with levels reaching 81% after a summer of steadily declining moisture. This marks a transition from the warm, drier months of July and August, where humidity dipped to its annual lows of 72% and 71%, respectively. As autumn approaches, the higher humidity in September foreshadows the return of moister conditions, with October climbing back up to 88%. This shift not only signals a change in the climate but also enhances the city’s vibrant atmosphere, as cooler temperatures set the stage for the cozy fall season. The gradual rise in humidity from the summer's end to the onset of winter reflects Düsseldorf's dynamic climatic patterns, showcasing the city's unique blend of seasonal transitions.

September Average Humidity in Duesseldorf

This chart illustrates the average monthly humidity levels in Duesseldorf, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Duesseldorf

In September, Düsseldorf experiences a UV Index of 5, indicating a moderate exposure category. This marks a slight decline from the peak levels seen during the summer months, where the index reached as high as 8 in July and June. With a burn time of approximately 30 minutes in early fall, it's a reminder to stay vigilant about sun protection despite the cooler weather. As the year transitions into autumn, the UV Index trends downward, but awareness remains key to safeguarding your skin. For more detailed information on UV levels throughout the year, visit Duesseldorf UV Index.

Maximum UV Index Levels in Duesseldorf for September

The chart shows the monthly maximum UV Index (UVI) for Duesseldorf in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Duesseldorf September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Duesseldorf

As summer begins to wane in Düsseldorf, September offers a beautiful transition with an impressive 313 hours of sunshine. This month showcases the city's brilliance as daylight begins to dip but still shows an abundance of light, though noticeably less than the peak summer months of July and August, which boast 405 and 377 hours, respectively. Following a steady increase from the cold winter months, with January's mere 113 hours blossoming into the vibrant sun-soaked days of May and June, the sun's presence in September signifies a gentle farewell to the summer warmth before the autumn chill sets in. With October bringing a dip to 232 hours, September serves as a cherished pause, allowing residents and visitors alike to soak in the lingering light before the drearier months unfold.

Monthly Sunshine Duration in Duesseldorf: September Highlighted

The September sunshine duration represents the total number of hours Duesseldorf experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec113h202h267h336h387h383h405h377h313h232h183h129h
Data source: Duesseldorf September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Duesseldorf During September

In September, Düsseldorf offers a 33% chance of sunny weather, mirroring the trends seen in the late summer months of July and August. This mild degree of sunshine suggests that while the warmth of summer is fading, opportunities for pleasant, sunlit days still abound. As the city transitions into autumn, sunlight becomes less predictable, with a gradual decline in clear skies leading into the chillier months of October and November. Overall, September is a sweet spot to enjoy some sun before the darker days of winter take hold.

Percentage of Sunny Days in September in Duesseldorf

The chart illustrates the percentage of sunny days in Duesseldorf throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Duesseldorf experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%30%39%38%28%31%31%33%33%28%23%14%
Data source: Duesseldorf September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Duesseldorf in September

As summer gracefully transitions into autumn in Düsseldorf, the daylight duration in September offers a gentle reminder of the changing seasons, with about 12 hours of daylight to enjoy. Following the peak of 16 hours in June, the daylight gradually diminishes, dipping to 14 hours in August. This month reflects a balance of light as nature prepares for the upcoming chill of October, where the daylight further decreases to 10 hours. Overall, September stands as a beautiful midpoint, allowing residents and visitors alike to relish the golden hues of fall while still basking in ample sunlight.

Average Daylight Hours in Duesseldorf for September

The chart illustrates the variation in daylight duration in Duesseldorf throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 27m10h11h 55m13h 52m15h 34m16h 28m15h 59m14h 28m12h 34m10h 38m8h 53m7h 57m
Data source: Duesseldorf daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Duesseldorf

As September unfolds in Düsseldorf, the gentle whisper of the wind graces the city with an average speed of 2.6 m/s (6 mph), marking a noticeable decline from the breezier summer months. This shift towards calmer conditions echoes the transition to autumn, where winds tend to soften after the spicier gusts of July and August. Interestingly, September often feels like a lull before the wind picks up again in October, which returns to 4.0 m/s (9 mph), suggesting that while the month may bring a sense of serenity, it’s merely a precursor to the invigorating breezes that autumn will bring. The gradual ebb and flow of Düsseldorf's wind speeds reflect the city's dynamic climate, inviting both residents and visitors to enjoy the mild, tranquil days before the winds of change arrive.

Average September Wind Speed in Duesseldorf

The chart displays monthly wind speed patterns in Duesseldorf, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.03.63.13.82.62.93.12.6 m/s4.03.13.7
Data source: Duesseldorf September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Duesseldorf Compares to Other Months

The weather in Duesseldorf changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Duesseldorf and find detailed weather information for every month.

September and January present strikingly different weather patterns. In September, temperatures range from a comfortable minimum of 3°C (38°F) to a warm maximum of 33°C (92°F), with an average of 16°C (60°F) and relatively low precipitation of 65 mm (2.5 in) over about 11 days. The humidity is also high at 81%, contributing to a muggy feel during warmer days. In contrast, January experiences much colder conditions, with minimum temperatures plummeting to -8°C (18°F) and a maximum of only 14°C (58°F), averaging at 4°C (39°F). The month sees a slight increase in precipitation to 78 mm (3.1 in) over 14 days, coupled with even higher humidity at 91%, making it feel quite damp and chilly. For more details about the January weather in Düsseldorf, visit Duesseldorf weather in January.

September and February exhibit stark contrasts in weather. September boasts a wide temperature range, with minimums around 3°C (38°F), averaging 16°C (60°F), and reaching highs of 33°C (92°F), making it significantly warmer. In contrast, February brings much colder temperatures, with minimums plummeting to -10°C (14°F) and an average of only 5°C (41°F), peaking at 19°C (67°F).

Additionally, while September experiences 65 mm (2.5 in) of rainfall over 11 days at a humidity level of 81%, February sees an increase in precipitation to 82 mm (3.2 in) over 13 days, accompanied by even higher humidity at 90%. This difference in climate highlights the transition from late summer warmth to the chill of late winter. For more details on February conditions, visit Duesseldorf weather in February.

September and March in Düsseldorf present contrasting weather patterns that reflect the transition between summer and spring. In September, temperatures range from a mild 3°C (38°F) at their lowest to a warm 33°C (92°F) at their peak, averaging around 16°C (60°F). The month experiences about 65 mm (2.5 in) of precipitation over roughly 11 days, with humidity levels at 81%.

In contrast, March sees cooler temperatures, dipping as low as -8°C (18°F) and peaking at 22°C (72°F), with an average of 7°C (45°F). While it receives slightly more precipitation at 82 mm (3.2 in) over about 15 days, humidity rises to 87%. For more details on the weather during this month, visit Duesseldorf weather in March. Overall, September tends to be warmer and drier, while March is characterized by cooler temperatures and more frequent rainfall.

In September, the weather tends to be warmer overall, with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 33°C (92°F), averaging about 16°C (60°F). The month experiences 65 mm (2.5 in) of precipitation over 11 days, with humidity levels around 81%. In contrast, April brings cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 27°C (81°F), averaging 10°C (51°F). This month has lower precipitation at 41 mm (1.6 in) spread over 9 days and slightly higher humidity at 84%. For more detailed insights into April’s weather, check Duesseldorf weather in April.

When comparing the weather in September and May, both months feature a maximum temperature that can reach up to 33°C (91°F), but their overall patterns diverge significantly. September enjoys a higher average temperature of 16°C (60°F) compared to May's 14°C (57°F), indicating a warmer feel during the early autumn days. Additionally, September witnesses slightly more rainfall with 65 mm (2.5 in) over 11 days, while May sees 69 mm (2.7 in) spread over 13 days. Humidity levels also differ, with September recording a higher humidity of 81% versus May's 77%, making September feel a bit more muggy. For a more detailed look at May's weather, you can check Duesseldorf weather in May.

September and June offer distinct weather experiences, reflecting the transition from summer to autumn. In June, temperatures range from a minimum of 8°C (46°F) to a maximum of 35°C (96°F), with an average around 19°C (66°F), and slightly lower humidity at 74%. In contrast, September sees cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 33°C (92°F), averaging 16°C (60°F), while experiencing higher humidity at 81%. Both months have comparable precipitation levels, with June at 69 mm (2.7 in) and September at 65 mm (2.5 in), both spread over 11 days. For more detailed insights, check out Duesseldorf weather in June.

September weather exhibits a broader temperature range, with minimums dropping to 3°C (38°F) and maximums reaching up to 33°C (92°F). In contrast, July tends to be warmer, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 39°C (103°F). While September experiences slightly less precipitation (65 mm or 2.5 in across 11 days) compared to July's 98 mm (3.9 in over 12 days), it has higher humidity at 81% versus July’s 72%. For a more comprehensive look at July’s weather in Düsseldorf, you can visit Duesseldorf weather in July.

In September, the weather features a more pronounced temperature range with minimums dropping to 3°C (38°F) and maximums reaching 33°C (92°F), compared to August, which sees a narrower range with minimums at 8°C (46°F) and maximums peaking at 37°C (98°F). While September has slightly lower total precipitation at 65 mm (2.5 in) over 11 days, August is wetter with 76 mm (3.0 in) over 14 days. Additionally, September boasts higher humidity levels at 81%, making the air feel a bit muggy, whereas August maintains a lower humidity of 71%. For more detailed insights about August weather, visit Duesseldorf weather in August.

September and October present contrasting weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 33°C (92°F), with an average of 16°C (60°F) and relatively high humidity at 81%. Precipitation is moderate at 65 mm (2.5 in) over 11 days. In contrast, October sees a drop in average temperatures to 12°C (54°F), with daily highs peaking at 27°C (81°F) and lows falling to 2°C (35°F). This month experiences increased precipitation, totaling 106 mm (4.2 in) over 15 days, alongside a rise in humidity to 88%. For more specific details, check out Duesseldorf weather in October.

September weather offers a much warmer experience compared to November, with average temperatures reaching around 16°C (60°F) and highs soaring to 33°C (92°F). In contrast, November brings cooler weather, with average temperatures dropping to 7°C (45°F) and a maximum of just 20°C (68°F). While both months experience similar precipitation levels—65 mm in September and 62 mm in November—November sees slightly more rainy days (12) than September (11). Additionally, humidity levels rise from 81% in September to a higher 91% in November, contributing to a chillier atmosphere as the fall progresses. For more details, check out Duesseldorf weather in November.

In September, the weather features a wide temperature range, with minimums averaging around 3°C (38°F) and maximums reaching a warm 33°C (92°F). The month is characterized by a relatively moderate level of precipitation, totaling 65 mm (2.5 in) over about 11 days, and humidity sits at a comfortable 81%. In contrast, December brings a notable drop in temperatures, with averages hovering around 5°C (41°F) and maximums capping at 15°C (59°F). This month sees increased precipitation, reaching 114 mm (4.5 in) across 20 days, and a rise in humidity to 92%. For more detailed insights into December weather, you can visit Duesseldorf weather in December.

Compare Duesseldorf's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Duesseldorf

As September rolls into Düsseldorf, the weather starts to transition, offering a blend of summer warmth and early autumn chill. While the days can still reach comfortable highs, the cooler evenings remind us that fall is approaching. Rainfall becomes more frequent, with a noticeable uptick in precipitation compared to the drier summer months. Additionally, higher humidity levels create a unique atmosphere that can feel both refreshing and a bit muggy at times. Embrace the shifting seasons in Düsseldorf by exploring the city's vibrant culture, and for a deeper understanding of how the weather patterns evolve, check out Duesseldorf Climate.