September weather forecastAu, Austria
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Au, Austria, with temperature in the range of an average low of 7.2°C (45°F) and an average high of 17.5°C (63.5°F).Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a pleasant 21.8°C (71.2°F) in August to a comfortable 17.5°C (63.5°F). Au, during the nights of September, experiences an average temperature drop to a frosty 7.2°C (45°F).Humidity
In Au, the average relative humidity in September is 83%.Rainfall
In September, in Au, the rain falls for 17.8 days. Throughout September, 76mm (2.99") of precipitation is accumulated. Throughout the year, there are 194.6 rainfall days, and 1150mm (45.28") of precipitation is accumulated.Snowfall
In Au, Austria, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 06:39 and sunset at 20:00. On the last day of September, in Au, Austria, sunrise is at 07:18 and sunset at 19:01 CEST.
Sunshine
The average sunshine in September in Au is 8.4h.UV index
In Au, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Au, Austria
- Average high temperature in September: 17.5°C
The warmest month (with the highest average high temperature) is August (21.8°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 7.2°C
The months with the highest average low temperature are July and August (10.8°C).
The coldest month (with the lowest average low temperature) is February (-5.1°C).
Average pressure in September
Au, Austria
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Au, Austria
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is December (9.7km/h).
The calmest month (with the lowest average wind speed) is August (6.9km/h).
Average humidity in September
Au, Austria
- Average humidity in September: 83%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in September
Au, Austria
- Average rainfall in September: 76mm
The wettest month (with the highest rainfall) is May (140mm).
The driest month (with the least rainfall) is November (56mm).
Average rainfall days in September
Au, Austria
- Average rainfall days in September: 17.8 days
The month with the highest number of rainy days is May (24.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Au, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is January (546mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Au, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Au, Austria
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Au, Austria
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (4.6 days).
Average UV index in September
Au, Austria
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
Au, Austria
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Au, Austria
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July, August and November (8km).
The months with the lowest visibility are January and February (6km).
