September Weather in Aalen, Germany

Last updated: August 23, 2025

In September, the average temperature in Aalen, Germany hovers around 14°C (57°F). Expect minimums of 0°C (33°F) and maximums reaching 28°C (82°F). With precipitation of 60 mm (2.4 in) spread over 11 days, you might want to carry an umbrella! The average humidity is quite high at 85%, making it a rather moist month overall.

September Temperature in Aalen

In September in Aalen, the average temperature is 14°C (57°F). Maximums can reach 28°C (82°F), while minimums can dip as low as 0°C (33°F). Pack layers to enjoy the diverse weather during your travels!

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

The chart illustrates September temperature patterns in Aalen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aalen, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (33°F).

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

September Precipitation in Aalen

In Aalen in September, the precipitation amount is 60 mm (2.4 in) over the course of 11 days.

September Precipitation Trends in Aalen

The chart displays monthly precipitation patterns in Aalen, 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 Aalen, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Aalen

In Aalen in September, humidity is 85%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making travel feel heavy and sluggish.

September Average Humidity in Aalen

This chart illustrates the average monthly humidity levels in Aalen, 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 Aalen is approximately 85%, 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 Aalen

In Aalen 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 Aalen, you can refer to this Hourly UV Index in Aalen.

Maximum UV Index Levels in Aalen for September

The chart shows the monthly maximum UV Index (UVI) for Aalen 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 Aalen typically reaches 6, which falls under the high exposure category.

Data source: Aalen 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 Aalen Compares to Other Months

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

This table compares monthly weather conditions in Aalen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	79 mm (3.1 inches)	91%	low
February Weather	2°C (36°F)	77 mm (3.0 inches)	89%	moderate
March Weather	5°C (40°F)	81 mm (3.2 inches)	87%	moderate
April Weather	9°C (48°F)	44 mm (1.7 inches)	83%	high
May Weather	12°C (54°F)	112 mm (4.4 inches)	79%	very high
June Weather	18°C (64°F)	125 mm (4.9 inches)	82%	very high
July Weather	18°C (65°F)	96 mm (3.8 inches)	83%	very high
August Weather	18°C (65°F)	104 mm (4.1 inches)	84%	very high
September Weather	14°C (57°F)	60 mm (2.4 inches)	85%	high
October Weather	10°C (50°F)	74 mm (2.9 inches)	88%	moderate
November Weather	4°C (40°F)	55 mm (2.2 inches)	89%	low
December Weather	2°C (35°F)	111 mm (4.4 inches)	91%	low