September weather forecastTreffen, Austria
September
Weather in September
September, the first month of the autumn in Treffen, is still a refreshing month, with temperature in the range of an average high of 16.5°C (61.7°F) and an average low of 6.5°C (43.7°F).Temperature
The beginning of September involves a decrease in the average high-temperature, transitioning from an agreeable 21.9°C (71.4°F) in August to a comfortable 16.5°C (61.7°F). September witnesses an average nighttime temperature of 6.5°C (43.7°F).Humidity
The average relative humidity in September is 83%.Rainfall
In Treffen, in September, during 16.8 rainfall days, 101mm (3.98") of precipitation is typically accumulated. Throughout the year, there are 211.4 rainfall days, and 1234mm (48.58") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Treffen, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:25 and sunset at 19:43. On the last day of September, sunrise is at 07:02 and sunset at 18:46 CEST.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Treffen, Austria
- Average high temperature in September: 16.5°C
The warmest months (with the highest average high temperature) are July and August (21.9°C).
The month with the lowest average high temperature is January (0.1°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is August (9.7°C).
The coldest month (with the lowest average low temperature) is January (-6.8°C).
Average pressure in September
Treffen, Austria
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.2mbar).
Average wind speed in September
Treffen, Austria
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is March (6.9km/h).
The calmest month (with the lowest average wind speed) is August (5.3km/h).
Average humidity in September
Treffen, Austria
- Average humidity in September: 83%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Treffen, Austria
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is November (145mm).
The driest month (with the least rainfall) is January (54mm).
Average rainfall days in September
Treffen, Austria
- Average rainfall days in September: 16.8 days
The month with the highest number of rainy days is May (24.8 days).
The month with the least rainy days is January (11.2 days).
Average snowfall in September
Treffen, Austria
- Average snowfall in September: 0mm
The month with the highest snowfall is February (223mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Treffen, Austria
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Treffen, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and November (Average sunshine: 4h and 30min).
Average sunshine days in September
Treffen, Austria
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is October (14.2 days).
The month with the least sunshine days is July (3.9 days).
Average UV index in September
Treffen, 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, March, October, November and December (UV index 2).
Average cloud cover in September
Treffen, Austria
- Average cloud cover in September: 46
The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Treffen, 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).
