September weather forecastGrafenschlag, Austria
September
Weather in September
September, the first month of the autumn in Grafenschlag, is still a comfortable month, with an average temperature fluctuating between 8.6°C (47.5°F) and 18°C (64.4°F).Temperature
In the transition to September, Grafenschlag observes a drop in the average high-temperature, moving from a moderately hot 23.3°C (73.9°F) in August to a refreshing 18°C (64.4°F). Grafenschlag in September anticipates an average nighttime temperature of 8.6°C (47.5°F).Humidity
The average relative humidity in September in Grafenschlag is 79%.Rainfall
In Grafenschlag, in September, during 15.1 rainfall days, 58mm (2.28") of precipitation is typically accumulated. Throughout the year, there are 180.1 rainfall days, and 772mm (30.39") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Grafenschlag.Daylight
The average length of the day in September in Grafenschlag is 12h and 35min.On the first day of the month, sunrise is at 06:17 and sunset at 19:41. On the last day of September, sunrise is at 06:58 and sunset at 18:40 CEST.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grafenschlag, Austria
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is January (-4.8°C).
Average pressure in September
Grafenschlag, Austria
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is May (1015.5mbar).
Average wind speed in September
Grafenschlag, Austria
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Grafenschlag, Austria
- Average humidity in September: 79%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Grafenschlag, Austria
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is June (124mm).
The driest month (with the least rainfall) is November (27mm).
Average rainfall days in September
Grafenschlag, Austria
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is May (23.4 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Grafenschlag, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is January (224mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grafenschlag, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grafenschlag, Austria
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in September
Grafenschlag, Austria
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is June (5.3 days).
Average UV index in September
Grafenschlag, Austria
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Grafenschlag, Austria
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Grafenschlag, Austria
- Average visibility in September: 9km
The months with the highest visibility are April, June, July, August and September (9km).
The months with the lowest visibility are January, February and November (7km).





