September weather forecastHolenberg, Germany
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Holenberg, Germany, with an average temperature varying between 10.2°C (50.4°F) and 18.8°C (65.8°F).Temperature
In September, the average high-temperature marginally decreases from a moderately hot 23.4°C (74.1°F) in August to an enjoyable 18.8°C (65.8°F). Holenberg reports an average low-temperature of 10.2°C (50.4°F) during the nights of September.Humidity
The average relative humidity in September is 78%.Rainfall
In Holenberg, in September, it is raining for 14.8 days, with typically 33mm (1.3") of accumulated precipitation. In Holenberg, during the entire year, the rain falls for 182.8 days and collects up to 469mm (18.46") of precipitation.Snowfall
In Holenberg, snow does not fall in May through October.Daylight
In September, the average length of the day in Holenberg is 12h and 39min.On the first day of the month, sunrise is at 06:34 and sunset at 20:08. On the last day of September, sunrise is at 07:21 and sunset at 19:01 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holenberg, Germany
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).
Average pressure in September
Holenberg, Germany
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Holenberg, Germany
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (15km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Holenberg, Germany
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Holenberg, Germany
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is July (55mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Holenberg, Germany
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (11.2 days).
Average snowfall in September
Holenberg, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (51mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Holenberg, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Holenberg, Germany
- Average daylight in September: 12h and 36min
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 24min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Holenberg, Germany
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is October (13.8 days).
The month with the least sunshine days is December (9.1 days).
Average UV index in September
Holenberg, 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
Holenberg, Germany
- Average cloud cover in September: 46
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Holenberg, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January, February, March, May, September, October, November and December (8km).





