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
Welcoming September, Gratwein observes a shift in the average high-temperature, falling from August's moderately hot 24.3°C (75.7°F) to a comfortable 18.5°C (65.3°F). Gratwein usually reports an average low-temperature of 8.2°C (46.8°F) during the month of September.Humidity
In Gratwein, the average relative humidity in September is 80%.Rainfall
In Gratwein, in September, it is raining for 14.6 days, with typically 51mm (2.01") of accumulated precipitation. Throughout the year, there are 160.4 rainfall days, and 601mm (23.66") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:18 and sunset at 19:38. On the last day of the month, sunrise is at 06:56 and sunset at 18:40 CEST.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the UV index of 3 transforms into the following advice:
Exercise prevention - Warding off sunburn is urged. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Gratwein in September?
How many hours of daylight does Gratwein have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Gratwein, Austria
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (1.9°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is July (11.9°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).
Average pressure in September
Gratwein, Austria
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is May (1015.3mbar).
Average wind speed in September
Gratwein, Austria
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is May (7km/h).
The calmest month (with the lowest average wind speed) is November (5.4km/h).
Average humidity in September
Gratwein, Austria
- Average humidity in September: 80%
The months with the highest relative humidity are January and November (86%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Gratwein, Austria
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is July (104mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Gratwein, Austria
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (21.4 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Gratwein, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (176mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Gratwein, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gratwein, 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: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Gratwein, Austria
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is July (6.3 days).
Average UV index in September
Gratwein, Austria
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Gratwein, Austria
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Gratwein, Austria
- Average visibility in September: 8km
The months with the highest visibility are March, April, June and July (9km).
The months with the lowest visibility are January, February and November (7km).
