September weather forecastAltbach, Germany
September
Weather in September
September, the first month of the autumn in Altbach, is also an enjoyable month, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 19.1°C (66.4°F).Temperature
As September arrives, Altbach's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 24°C (75.2°F) to a refreshing 19.1°C (66.4°F). The average temperature during September nights dips to a frosty 9.7°C (49.5°F).Humidity
In Altbach, the average relative humidity in September is 78%.Rainfall
April and September are months with the least rain when the rain falls for 12.5 days and typically aggregates up to 32mm (1.26") of rain.Snowfall
In Altbach, snow does not fall in May through September.Daylight
In Altbach, the average length of the day in September is 12h and 35min.On the first day of September in Altbach, Germany, sunrise is at 06:40 and sunset at 20:04. On the last day of the month, sunrise is at 07:21 and sunset at 19:03 CEST.
Sunshine
In September, the average sunshine in Altbach is 8.9h.UV index
In Altbach, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altbach, Germany
- Average high temperature in September: 19.1°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).
Average pressure in September
Altbach, Germany
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Altbach, Germany
- Average wind speed in September: 8.1km/h
The windiest months (with the highest average wind speed) are February and March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Altbach, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Altbach, Germany
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is May (75mm).
The driest months (with the least rainfall) are April and September (32mm).
Average rainfall days in September
Altbach, Germany
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in September
Altbach, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (100mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Altbach, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Altbach, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Altbach, Germany
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (14.4 days).
The month with the least sunshine days is May (8 days).
Average UV index in September
Altbach, 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
Altbach, Germany
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Altbach, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
