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September Weather in Heimbach, Germany

Last updated: August 23, 2025

In September, the average temperature in Heimbach, Germany is a comfortable 15°C (59°F), with a minimum of 2°C (36°F) and a pleasant maximum of 33°C (92°F). Expect about 56 mm (2.2 in) of precipitation across 9 days, contributing to an average humidity level of 81%. Prepare for a mix of cozy and warm weather, perfect for various activities!

September Temperature in Heimbach

In September in Heimbach, the average temperature is 15°C (59°F), with maximums reaching 33°C (92°F) and minimums dipping as low as 2°C (36°F). This range makes it a great time to explore outdoor activities while being prepared for varying temperatures.

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

The chart illustrates September temperature patterns in Heimbach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heimbach, September typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec374044495664666659534441
Data source: Temperature data for Heimbach 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 Heimbach

In Heimbach in September, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.

September Precipitation Trends in Heimbach

The chart displays monthly precipitation patterns in Heimbach, 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 Heimbach, September typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7068743679791007856705296
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Heimbach

In Heimbach in September humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.

September Average Humidity in Heimbach

This chart illustrates the average monthly humidity levels in Heimbach, 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 Heimbach is approximately 81%, offering insight into how humid the weather typically is during this month.
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 Heimbach

In Heimbach 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 Heimbach.

Maximum UV Index Levels in Heimbach for September

The chart shows the monthly maximum UV Index (UVI) for Heimbach 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 Heimbach typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Heimbach 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 Heimbach Compares to Other Months

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

This table compares monthly weather conditions in Heimbach, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)70 mm (2.8 inches)91%low
February Weather5°C (40°F)67 mm (2.7 inches)90%low
March Weather7°C (44°F)74 mm (2.9 inches)87%moderate
April Weather10°C (49°F)36 mm (1.4 inches)84%moderate
May Weather13°C (56°F)79 mm (3.1 inches)77%high
June Weather18°C (65°F)79 mm (3.1 inches)74%very high
July Weather19°C (66°F)100 mm (3.9 inches)72%very high
August Weather19°C (66°F)77 mm (3.1 inches)71%high
September Weather15°C (59°F)56 mm (2.2 inches)81%moderate
October Weather12°C (53°F)70 mm (2.7 inches)88%moderate
November Weather7°C (44°F)52 mm (2.1 inches)91%low
December Weather5°C (41°F)96 mm (3.8 inches)92%low

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