September Weather in Wachau, Germany

Last updated: August 23, 2025

In September, the average temperature in Wachau, Germany hovers around 15°C (60°F), with a comfortable humidity level of 81%. Expect temperatures to range from a cool 2°C (36°F) to a warm 31°C (88°F). However, don’t forget your umbrella, as 61 mm (2.4 in) of precipitation may grace the area over approximately 10 days.

September Temperature in Wachau

In September in Wachau, the average temperature is 15°C (60°F). Maximums can reach 31°C (88°F), while minimums can drop as low as 2°C (36°F). This wide temperature range makes it essential to pack versatile clothing for your travels.

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

The chart illustrates September temperature patterns in Wachau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wachau, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Wachau

In Wachau in September, the precipitation amount is 61 mm (2.4 in) over a span of 10 days.

September Precipitation Trends in Wachau

The chart displays monthly precipitation patterns in Wachau, 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 Wachau, September typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 10 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 Wachau

In Wachau in September, humidity is 81%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sluggish and draining, which can challenge even the best-prepared traveler.

September Average Humidity in Wachau

This chart illustrates the average monthly humidity levels in Wachau, 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 Wachau is approximately 81%, 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 Wachau

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

Maximum UV Index Levels in Wachau for September

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

Data source: Wachau 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 Wachau Compares to Other Months

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

This table compares monthly weather conditions in Wachau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	62 mm (2.4 inches)	90%	low
February Weather	3°C (37°F)	56 mm (2.2 inches)	89%	low
March Weather	5°C (42°F)	57 mm (2.3 inches)	87%	moderate
April Weather	9°C (49°F)	37 mm (1.4 inches)	81%	moderate
May Weather	14°C (57°F)	63 mm (2.5 inches)	71%	high
June Weather	19°C (67°F)	62 mm (2.4 inches)	75%	very high
July Weather	20°C (68°F)	64 mm (2.5 inches)	74%	very high
August Weather	20°C (69°F)	70 mm (2.8 inches)	76%	high
September Weather	15°C (60°F)	61 mm (2.4 inches)	81%	high
October Weather	11°C (53°F)	65 mm (2.5 inches)	85%	moderate
November Weather	6°C (43°F)	47 mm (1.8 inches)	88%	low
December Weather	3°C (38°F)	70 mm (2.8 inches)	92%	low