September Weather in Horn, Austria

Last updated: August 22, 2025

In September, the average temperature in Horn, Austria hovers around 15°C (60°F), with a minimum dipping to 2°C (35°F) and a maximum reaching a warm 30°C (87°F). Expect about 73 mm (2.9 in) of precipitation during 9 days, contributing to an average humidity level of 75%. ☔️

September Temperature in Horn

In September in Horn, the average temperature is 15°C (60°F). Maximum temperatures can reach up to 30°C (87°F), while minimum temperatures can drop as low as 2°C (35°F). This variation makes it an ideal time for travelers to enjoy a range of outdoor activities, from warm days in the sun to cooler evenings perfect for cozying up.

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

The chart illustrates September temperature patterns in Horn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Horn, September typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (87°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Horn

In Horn in September, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.

September Precipitation Trends in Horn

The chart displays monthly precipitation patterns in Horn, 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 Horn, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 9 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 Horn

In Horn in September, humidity is 75%. With an average temperature of 15°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities slightly uncomfortable and requiring extra hydration while exploring the sights.

September Average Humidity in Horn

This chart illustrates the average monthly humidity levels in Horn, 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 Horn is approximately 75%, 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 Horn

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

Maximum UV Index Levels in Horn for September

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

Data source: Horn 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 Horn Compares to Other Months

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

This table compares monthly weather conditions in Horn, 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)	31 mm (1.2 inches)	90%	low
February Weather	2°C (36°F)	32 mm (1.2 inches)	87%	moderate
March Weather	5°C (41°F)	32 mm (1.2 inches)	85%	moderate
April Weather	10°C (50°F)	36 mm (1.4 inches)	78%	high
May Weather	14°C (57°F)	82 mm (3.2 inches)	73%	very high
June Weather	20°C (68°F)	76 mm (3.0 inches)	77%	very high
July Weather	20°C (69°F)	85 mm (3.4 inches)	76%	very high
August Weather	21°C (69°F)	80 mm (3.1 inches)	76%	high
September Weather	15°C (60°F)	73 mm (2.9 inches)	75%	high
October Weather	10°C (51°F)	42 mm (1.7 inches)	85%	moderate
November Weather	5°C (41°F)	42 mm (1.6 inches)	90%	low
December Weather	2°C (35°F)	45 mm (1.8 inches)	91%	low