September weather forecastGriffen, Austria
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Griffen, Austria, with an average temperature fluctuating between 16.7°C (62.1°F) and 7.1°C (44.8°F).Temperature
September implies a gentle temperature shift, with average high-temperatures reducing from August's agreeable 21.8°C (71.2°F) to a refreshing 16.7°C (62.1°F). Griffen encounters an average low-temperature of 7.1°C (44.8°F) during September nights.Humidity
The average relative humidity in September in Griffen is 84%.Rainfall
In Griffen, Austria, in September, during 16.9 rainfall days, 82mm (3.23") of precipitation is typically accumulated. In Griffen, during the entire year, the rain falls for 182.9 days and collects up to 983mm (38.7") of precipitation.Snowfall
In Griffen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 06:21 and sunset at 19:40. On the last day of September, in Griffen, sunrise is at 06:59 and sunset at 18:42 CEST.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Griffen is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Griffen, Austria
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (0.3°C).
- Average low temperature in September: 7.1°C
The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).
Average pressure in September
Griffen, Austria
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is May (1015.3mbar).
Average wind speed in September
Griffen, Austria
- Average wind speed in September: 5.9km/h
The windiest months (with the highest average wind speed) are March, April and May (6.9km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Griffen, Austria
- Average humidity in September: 84%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is April (78%).
Average rainfall in September
Griffen, Austria
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is June (147mm).
The driest month (with the least rainfall) is January (30mm).
Average rainfall days in September
Griffen, Austria
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is July (24.2 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in September
Griffen, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (345mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Griffen, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Griffen, Austria
- Average daylight in September: 12h and 36min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Griffen, Austria
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is May (5.1 days).
Average UV index in September
Griffen, 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 January, February, October, November and December (UV index 2).
Average cloud cover in September
Griffen, Austria
- Average cloud cover in September: 50
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in September
Griffen, Austria
- Average visibility in September: 7km
The months with the highest visibility are March, April, June, July and August (8km).
The months with the lowest visibility are January, February and November (6km).
