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September Weather in Aerzen, Germany

Last updated: August 23, 2025

In September, the average temperature in Aerzen, Germany hovers around 14°C (58°F). Expect minimums to dip to 2°C (35°F), while daytime highs can reach up to 30°C (87°F). During this month, anticipate approximately 59 mm (2.3 in) of precipitation spread over 10 days, accompanied by an average humidity level of 82%.

September Temperature in Aerzen

In September in Aerzen, the average temperature is 14°C (58°F), with maximums reaching up to 30°C (87°F) and minimums dropping as low as 2°C (35°F). This varied climate makes Aerzen an ideal destination for travelers seeking to experience a mix of warm and cool weather.

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

The chart illustrates September temperature patterns in Aerzen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aerzen, September typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec363842485564656558524339
Data source: Temperature data for Aerzen 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 Aerzen

In Aerzen in September, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

September Precipitation Trends in Aerzen

The chart displays monthly precipitation patterns in Aerzen, 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 Aerzen, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec737577466874997859845184
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aerzen

In Aerzen in September, humidity is 82%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and sticky.

September Average Humidity in Aerzen

This chart illustrates the average monthly humidity levels in Aerzen, 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 Aerzen is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%87%83%76%74%74%75%82%88%91%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aerzen

In Aerzen in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Aerzen.

Maximum UV Index Levels in Aerzen for September

The chart shows the monthly maximum UV Index (UVI) for Aerzen 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 Aerzen typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Aerzen 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 Aerzen Compares to Other Months

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

This table compares monthly weather conditions in Aerzen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)73 mm (2.9 inches)92%low
February Weather3°C (38°F)75 mm (3.0 inches)90%low
March Weather5°C (42°F)77 mm (3.0 inches)87%moderate
April Weather9°C (48°F)46 mm (1.8 inches)83%moderate
May Weather13°C (55°F)68 mm (2.7 inches)76%high
June Weather18°C (64°F)74 mm (2.9 inches)74%very high
July Weather18°C (65°F)99 mm (3.9 inches)74%very high
August Weather18°C (66°F)78 mm (3.1 inches)75%high
September Weather14°C (58°F)59 mm (2.3 inches)82%moderate
October Weather11°C (52°F)84 mm (3.3 inches)88%moderate
November Weather6°C (43°F)51 mm (2.0 inches)90%low
December Weather4°C (39°F)84 mm (3.3 inches)92%low

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