September weather forecastTreffelstein, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Treffelstein, Germany, with temperature in the range of an average low of 8.1°C (46.6°F) and an average high of 17.9°C (64.2°F).Temperature
The onset of September is marked by a decrease in temperature, transitioning from a moderately hot 23.3°C (73.9°F) in August to a comfortable 17.9°C (64.2°F). September's average low-temperature reading in Treffelstein settles at a chilly 8.1°C (46.6°F).Humidity
In Treffelstein, Germany, the average relative humidity in September is 80%.Rainfall
In Treffelstein, in September, it is raining for 13.1 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Treffelstein, Germany, there are 139.1 rainfall days, and 458mm (18.03") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Treffelstein.Daylight
In September, the average length of the day in Treffelstein is 12h and 36min.On the first day of the month, sunrise is at 06:26 and sunset at 19:52. On the last day of September, sunrise is at 07:08 and sunset at 18:50 CEST.
Sunshine
In Treffelstein, Germany, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Treffelstein is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Treffelstein, Germany
- Average high temperature in September: 17.9°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 (0.6°C).
- Average low temperature in September: 8.1°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 (-4.5°C).
Average pressure in September
Treffelstein, Germany
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Treffelstein, Germany
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity in September
Treffelstein, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in September
Treffelstein, Germany
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is July (67mm).
The driest month (with the least rainfall) is November (21mm).
Average rainfall days in September
Treffelstein, Germany
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in September
Treffelstein, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (102mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Treffelstein, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Treffelstein, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
Treffelstein, Germany
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in September
Treffelstein, Germany
- 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, February and November (UV index 1).
Average cloud cover in September
Treffelstein, Germany
- Average cloud cover in September: 41
The months with the most cloud cover are January and December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Treffelstein, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The month with the lowest visibility is January (6km).
