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September Weather in Walldorf, Germany

Last updated: August 23, 2025

In September, the average temperature in Walldorf, Germany hovers around 16°C (61°F), with daily highs reaching up to 32°C (89°F) and lows dipping to a chilly 5°C (40°F). Expect 51 mm (2.0 in) of rain spread over 7 days, accompanied by an average humidity level of 85%. Whether you're exploring or relaxing, prepare for a mix of warmth and moisture!

September Temperature in Walldorf

In September in Walldorf, the average temperature is 16°C (61°F). The maximum can reach 32°C (89°F) and the minimum can be as low as 5°C (40°F). Be prepared for a wide range of temperatures, making it a great time to enjoy both warm and cool activities while visiting.

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

The chart illustrates September temperature patterns in Walldorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walldorf, September typically has an average temperature of 16°C (61°F), with highs reaching up to 32°C (89°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec364045515868696961534339
Data source: Temperature data for Walldorf generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Walldorf

In Walldorf in September, the precipitation amount is 51 mm (2.0 in) over a period of 7 days.

September Precipitation Trends in Walldorf

The chart displays monthly precipitation patterns in Walldorf, 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. In Walldorf, September typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec7366813279726054517151119
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Walldorf

In Walldorf in September, humidity is 85%. With an average temperature of 16°C (61°F), this humidity feels like a thick blanket wrapping around you, making outdoor activities feel sticky and the air heavy, which can be challenging for traveling and exploring the area comfortably.

September Average Humidity in Walldorf

This chart illustrates the average monthly humidity levels in Walldorf, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Walldorf is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%83%79%82%83%84%86%88%89%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Walldorf

In Walldorf in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Walldorf, you can refer to this Hourly UV Index in Walldorf.

Maximum UV Index Levels in Walldorf for September

The chart shows the monthly maximum UV Index (UVI) for Walldorf 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. In September, the maximum UV index in Walldorf typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235688876421
Data source: Walldorf 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.

How September Weather in Walldorf Compares to Other Months

Weather in Walldorf varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Walldorf, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Walldorf, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)73 mm (2.9 inches)91%low
February Weather4°C (40°F)66 mm (2.6 inches)89%moderate
March Weather7°C (45°F)81 mm (3.2 inches)87%moderate
April Weather11°C (52°F)31 mm (1.2 inches)83%high
May Weather14°C (58°F)79 mm (3.1 inches)79%very high
June Weather20°C (68°F)72 mm (2.8 inches)82%very high
July Weather21°C (69°F)60 mm (2.3 inches)83%very high
August Weather21°C (69°F)54 mm (2.1 inches)84%high
September Weather16°C (61°F)51 mm (2.0 inches)85%high
October Weather12°C (53°F)71 mm (2.8 inches)88%moderate
November Weather6°C (43°F)51 mm (2.0 inches)89%low
December Weather4°C (39°F)119 mm (4.7 inches)91%low

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