September weather forecastAlthornbach, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Althornbach, Germany, with temperature in the range of an average high of 19.1°C (66.4°F) and an average low of 9.4°C (48.9°F).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 23.7°C (74.7°F) in August to a comfortable 19.1°C (66.4°F). During the nights in September, Althornbach observes an average low-temperature of 9.4°C (48.9°F).Humidity
In September, the average relative humidity in Althornbach is 80%.Rainfall
In Althornbach, in September, it is raining for 10.4 days, with typically 29mm (1.14") of accumulated precipitation. Throughout the year, there are 156.6 rainfall days, and 400mm (15.75") of precipitation is accumulated.Snowfall
April, June through October are months without snowfall.Daylight
In Althornbach, Germany, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 06:47 and sunset at 20:13. On the last day of the month, sunrise is at 07:29 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September in Althornbach is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Althornbach, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is July (23.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Althornbach, 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 (1014.7mbar).
Average wind speed in September
Althornbach, Germany
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in September
Althornbach, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall in September
Althornbach, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (44mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Althornbach, Germany
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (16.5 days).
The months with the least rainy days are February and September (10.4 days).
Average snowfall in September
Althornbach, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (52mm).
The months with the least snowfall are April, June, July, August, September and October (0mm).
Average snowfall days in September
Althornbach, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Althornbach, 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 12min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Althornbach, Germany
- Average sunshine days in September: 17 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in September
Althornbach, 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 November and December (UV index 1).
Average cloud cover in September
Althornbach, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Althornbach, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are November and December (7km).
