September Weather in Gastern, Austria

Last updated: August 22, 2025

In September, the average temperature in Gastern, Austria hovers around 14°C (58°F), with pleasant highs reaching up to 29°C (84°F) and chilly lows dipping to 0°C (32°F). Expect about 66 mm (2.6 in) of precipitation spread over 10 days, contributing to an average humidity of 75%. Whether you're planning outdoor adventures or cozy indoor activities, this month's weather is sure to offer a unique experience!

September Temperature in Gastern

In September in Gastern, the average temperature is 14°C (58°F), with maximums reaching 29°C (84°F) and minimums dipping as low as 0°C (32°F). Be prepared for a mix of warmth and cooler moments, making it ideal for layering your travel wardrobe.

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

The chart illustrates September temperature patterns in Gastern, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gastern, September typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around 0°C (32°F).

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

September Precipitation in Gastern

In Gastern in September, the precipitation amount is 66 mm (2.6 in) over the course of 10 days.

September Precipitation Trends in Gastern

The chart displays monthly precipitation patterns in Gastern, 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 Gastern, September typically receives around 66 mm (2.6 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 Gastern

In Gastern in September humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.

September Average Humidity in Gastern

This chart illustrates the average monthly humidity levels in Gastern, 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 Gastern 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 Gastern

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

Maximum UV Index Levels in Gastern for September

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

Data source: Gastern 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 Gastern Compares to Other Months

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

This table compares monthly weather conditions in Gastern, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	44 mm (1.7 inches)	90%	low
February Weather	1°C (35°F)	40 mm (1.6 inches)	87%	moderate
March Weather	4°C (40°F)	44 mm (1.7 inches)	85%	moderate
April Weather	9°C (48°F)	38 mm (1.5 inches)	78%	high
May Weather	13°C (55°F)	89 mm (3.5 inches)	73%	very high
June Weather	18°C (65°F)	79 mm (3.1 inches)	77%	very high
July Weather	19°C (66°F)	89 mm (3.5 inches)	76%	very high
August Weather	19°C (67°F)	72 mm (2.8 inches)	76%	very high
September Weather	14°C (58°F)	66 mm (2.6 inches)	75%	high
October Weather	10°C (50°F)	51 mm (2.0 inches)	85%	moderate
November Weather	4°C (40°F)	43 mm (1.7 inches)	90%	low
December Weather	1°C (34°F)	55 mm (2.2 inches)	91%	low