September Weather in Ahlen, Germany

Last updated: August 23, 2025

In September, the average temperature in Ahlen, Germany is a comfortable 15°C (60°F). However, you might experience a range from a chilly 2°C (37°F) to a warm 32°C (89°F). Prepare for some rainfall too, as the month sees about 55 mm (2.2 in) of precipitation spread over 10 days. Adding to the mix, the average humidity hovers around 82%, contributing to a humid atmosphere.

September Temperature in Ahlen

In September in Ahlen, the average temperature is 15°C (60°F). The maximum can reach 32°C (89°F), while the minimum can drop to as low as 2°C (37°F). Pack for both warm and cool weather to ensure a comfortable trip!

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

The chart illustrates September temperature patterns in Ahlen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ahlen, September typically has an average temperature of 15°C (60°F), with highs reaching up to 32°C (89°F) and lows dropping to around 2°C (37°F).

Data source: Temperature data for Ahlen generated using information from the Copernicus Climate Change Service.

September Precipitation in Ahlen

In Ahlen in September, the precipitation amount is 55 mm (2.2 in) spread over a duration of 10 days.

September Precipitation Trends in Ahlen

The chart displays monthly precipitation patterns in Ahlen, 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 Ahlen, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Ahlen

In Ahlen in September humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.

September Average Humidity in Ahlen

This chart illustrates the average monthly humidity levels in Ahlen, 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 Ahlen is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ahlen

In Ahlen 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 Ahlen.

Maximum UV Index Levels in Ahlen for September

The chart shows the monthly maximum UV Index (UVI) for Ahlen 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 Ahlen typically reaches 5, which falls under the moderate exposure category.

Data source: Ahlen 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 Ahlen Compares to Other Months

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

This table compares monthly weather conditions in Ahlen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	69 mm (2.7 inches)	92%	low
February Weather	4°C (40°F)	75 mm (3.0 inches)	90%	low
March Weather	7°C (44°F)	74 mm (2.9 inches)	87%	moderate
April Weather	10°C (50°F)	38 mm (1.5 inches)	83%	moderate
May Weather	14°C (57°F)	58 mm (2.3 inches)	76%	high
June Weather	19°C (66°F)	56 mm (2.2 inches)	74%	very high
July Weather	19°C (67°F)	78 mm (3.1 inches)	74%	very high
August Weather	19°C (67°F)	66 mm (2.6 inches)	75%	high
September Weather	15°C (60°F)	55 mm (2.2 inches)	82%	moderate
October Weather	12°C (54°F)	82 mm (3.2 inches)	88%	moderate
November Weather	7°C (45°F)	53 mm (2.1 inches)	90%	low
December Weather	5°C (41°F)	90 mm (3.5 inches)	92%	low