September weather forecastBillbrook, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Billbrook, Germany, with temperature in the range of an average high of 18.4°C (65.1°F) and an average low of 10.8°C (51.4°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a pleasant 22.6°C (72.7°F) in August to a comfortable 18.4°C (65.1°F). Billbrook, during the month of September, experiences an average low-temperature of 10.8°C (51.4°F).Humidity
The average relative humidity in September in Billbrook is 81%.Rainfall
In Billbrook, in September, it is raining for 15.5 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 187.4 rainfall days, and 462mm (18.19") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Billbrook.Daylight
In September, the average length of the day in Billbrook, Germany, is 12h and 41min.On the first day of the month, sunrise is at 06:29 and sunset at 20:09. On the last day of September, in Billbrook, Germany, sunrise is at 07:20 and sunset at 18:58 CEST.
Sunshine
In September, the average sunshine in Billbrook is 7.6h.UV index
In Billbrook, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Billbrook, Germany
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is August (22.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (-0.5°C).
Average pressure in September
Billbrook, Germany
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is September (1016.3mbar).
The month with the lowest atmospheric pressure is November (1011.8mbar).
Average wind speed in September
Billbrook, Germany
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in September
Billbrook, Germany
- Average humidity in September: 81%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are April and August (76%).
Average rainfall in September
Billbrook, Germany
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Billbrook, Germany
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Billbrook, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (38mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Billbrook, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
Billbrook, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Billbrook, Germany
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is April (14.1 days).
The month with the least sunshine days is December (8.5 days).
Average UV index in September
Billbrook, Germany
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Billbrook, Germany
- Average cloud cover in September: 48
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in September
Billbrook, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, October, November and December (8km).








