September weather forecast
Austria

September in Austria denotes the commencement of the autumn season. The transition from summer is visible in the gradual cooling of the temperature, reducing daylight hours, and less frequent rainfall, setting a picturesque scene of vibrant foliage and more manageable temperatures for locals and visitors alike.

In the eastern city of Vienna, September temperatures range between 12°C (53.6°F) and 21°C (69.8°F), while in Linz, in the northern region, they hover from 11°C (51.8°F) to 21°C (69.8°F). This slight decrease in temperature from the preceding summer months brings a comfortable chill, particularly noticeable during the early mornings and evenings.

Rainfall in September varies from 50mm (1.97") to 90mm (3.54") across Austria. The decrease in rainfall from August aligns with the change of seasons, with less frequent occurrences of thunderstorms. Despite lower rainfall, the landscape remains lush, with forests and fields showcasing a spectacular array of autumn colors.

As for snowfall, it remains a rare occurrence in September, even in regions of high altitude above 2000 meters. However, towards the end of the month, the mountainous regions may start to see the initial signs of winter with sporadic snowfall.

Daylight hours in September reduce further, with Austria experiencing an average of six to seven hours of daylight per day. Yet, the available sunlight continues to facilitate outdoor activities and sightseeing, enhanced by the spectacular display of autumn foliage.

Relative humidity in September oscillates between 55% and 85%. Predominantly clear skies and bright sunshine are typical during this month, despite the occasional overcast conditions.

Comparing September to August, there is a noticeable decrease in temperature, daylight hours, and rainfall. As Austria progresses into October, temperatures continue to drop, rainfall fluctuates, and daylight hours decrease further, indicating the deepening of autumn and the imminent approach of winter.

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• Vienna - September »
  In Vienna, during September, the rain falls for 6.9 days and regularly aggregates up to 50mm (1.97") of precipitation. The start of September in Vienna signals a decrease in the average high-temperature, transitioning from a warm 26.6°C (79.9°F) in August to an agreeable 21.1°C (70°F).
• Graz - September »
  In Graz in September, during 11 rainfall days, 89mm (3.5") of precipitation is typically accumulated. September in Graz ushers in the fall, however the weather remains warm, ranging from 9°C (48.2°F) in the night to 20°C (68°F) during the day.
• Linz - September »
  In Linz in September, it is raining for 11.5 days, with typically 34mm (1.34") of accumulated precipitation. The Linz weather in September, reflective of the incoming autumn, brings crisp air, cooler evenings and the early appearances of an array of autumn hues in the city’s parks.
• Salzburg - September »
  On the first day of September in Salzburg, Austria, sunrise is at 06:26 and sunset at 19:48. In Salzburg in September, it is raining for 10.8 days, with typically 101mm (3.98") of accumulated precipitation.
• Innsbruck - September »
  On the first day of September in Innsbruck sunrise is at 06:34 and sunset at 19:54. On the last day of September, in Innsbruck, sunrise is at 07:12 and sunset at 18:55 CEST.
• Klagenfurt - September »
  In Klagenfurt in September, it is raining for 12.5 days, with typically 57mm (2.24") of accumulated precipitation. In Klagenfurt, in September, during 12.5 rainfall days, 57mm (2.24") of precipitation is typically accumulated.
• Villach - September »
  September witnesses a distinct shift in Villach's climate with a decline in temperature range to 6.5°C (43.7°F) to 16.5°C (61.7°F), hinting at the forthcoming fall. In Villach during September, the rain falls for 16.8 days and regularly aggregates up to 101mm (3.98") of precipitation.
• Dornbirn - September »
  In Dornbirn, in September, during 14.6 rainfall days, 60mm (2.36") of precipitation is typically accumulated. September marks the beginning of the fall season in Dornbirn with temperatures moving between 7.4°C (45.3°F) and 17.6°C (63.7°F).
• Wiener Neustadt - September »
  In Wiener Neustadt during September, the rain falls for 10.7 days and regularly aggregates up to 34mm (1.34") of precipitation. On the first day of September in Wiener Neustadt sunrise is at 06:14 and sunset at 19:35.
• Feldkirch - September »
  In Feldkirch, snow does not fall in June through September. In September, in Feldkirch, the rain falls for 13.7 days.