September weather forecastArolsen, Germany
September
Weather in September
September, the first month of the autumn in Arolsen, is still a refreshing month, with temperature in the range of an average low of 9.1°C (48.4°F) and an average high of 18.7°C (65.7°F).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 23.4°C (74.1°F) in August to a refreshing 18.7°C (65.7°F). In September, Arolsen experiences a temperature dip to an average of 9.1°C (48.4°F) at night.Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Arolsen, the rain falls for 13.3 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Arolsen, there are 176.4 rainfall days, and 463mm (18.23") of precipitation is accumulated.Snowfall
In Arolsen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 06:37 and sunset at 20:09. On the last day of September, sunrise is at 07:23 and sunset at 19:03 CEST.
Sunshine
In September, the average sunshine in Arolsen is 8.3h.UV index
In Arolsen, Germany, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 3 during September leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arolsen, Germany
- Average high temperature in September: 18.7°C
The warmest months (with the highest average high temperature) are July and August (23.4°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is January (-2.1°C).
Average pressure in September
Arolsen, Germany
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in September
Arolsen, Germany
- Average wind speed in September: 8.6km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in September
Arolsen, Germany
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Arolsen, Germany
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Arolsen, Germany
- Average rainfall days in September: 13.3 days
The months with the highest number of rainy days are June and July (17.8 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Arolsen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (79mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Arolsen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arolsen, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Arolsen, Germany
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
Arolsen, Germany
- 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, March, November and December (UV index 2).
Average cloud cover in September
Arolsen, Germany
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Arolsen, Germany
- Average visibility in September: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January, February, October, November and December (7km).
