Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September involves a decrease in the average high-temperature, from a warm 23.1°C (73.6°F) to a refreshing 17.5°C (63.5°F). September nights in Grafenstein are marked by an average temperature drop to a chilly 7.1°C (44.8°F).Humidity
The average relative humidity in September in Grafenstein is 83%.Rainfall
In Grafenstein, Austria, in September, during 12.5 rainfall days, 57mm (2.24") of precipitation is typically accumulated. In Grafenstein, during the entire year, the rain falls for 152.4 days and collects up to 608mm (23.94") of precipitation.Snowfall
In Grafenstein, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September, sunrise is at 06:22 and sunset at 19:41. On the last day of the month, sunrise is at 07:00 and sunset at 18:43 CEST.
Sunshine
In September, the average sunshine is 8.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in September translates into these instructions:
Guard yourself - Avoiding sunburn is suggested. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September in Grafenstein?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Grafenstein, Austria
- Average high temperature in September: 17.5°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (0.7°C).
- Average low temperature in September: 7.1°C
The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).
Average pressure in September
Grafenstein, Austria
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is May (1015.2mbar).
Average wind speed in September
Grafenstein, Austria
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is March (6.3km/h).
The calmest month (with the lowest average wind speed) is August (4.9km/h).
Average humidity in September
Grafenstein, Austria
- Average humidity in September: 83%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Grafenstein, Austria
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Grafenstein, Austria
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Grafenstein, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (160mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Grafenstein, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grafenstein, Austria
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Grafenstein, Austria
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is December (18.3 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in September
Grafenstein, Austria
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Grafenstein, Austria
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Grafenstein, Austria
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July, August and December (8km).
The month with the lowest visibility is February (6km).
