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
Weather in September
Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 23.3°C (73.9°F) in August to a refreshing 19°C (66.2°F). In the month of September, an average of 11°C (51.8°F) marks the low-temperature in Datteln.Humidity
In Datteln, the average relative humidity in September is 77%.Rainfall
In Datteln, in September, during 12.9 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, there are 182.6 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Datteln is 12h and 38min.On the first day of the month, sunrise is at 06:43 and sunset at 20:17. On the last day of September, in Datteln, sunrise is at 07:30 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
The average daily maximum UV index in September in Datteln, Germany, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Be vigilant - Preventing sunburn is recommended. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What are the temperatures in Datteln in September?
What is the average humidity in September in Datteln?
How many days does it rain in September in Datteln?
When it does not snow in Datteln?
How many hours of daylight does Datteln have in September?
When is the sunrise / sunset in September in Datteln?
How many hours of sunshine does Datteln have in September?
What is the UV index reading in September in Datteln?
Average temperature in September
Datteln, Germany
- Average high temperature in September: 19°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 (4.1°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Datteln, Germany
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Datteln, Germany
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Datteln, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Datteln, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (55mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Datteln, Germany
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (12.8 days).
Average snowfall in September
Datteln, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Datteln, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Datteln, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Datteln, Germany
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
Datteln, Germany
- Average UV index in September: 4
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, November and December (UV index 2).
Average cloud cover in September
Datteln, Germany
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Datteln, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
Datteln, Germany
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