September weather forecastAalen, Germany
September
Weather in September
September, the first month of the autumn in Aalen, is still a refreshing month, with an average temperature varying between 9°C (48.2°F) and 18.4°C (65.1°F).Temperature
September ushers in a minor alteration in Aalen's climate, with the average high-temperature moving from August's agreeable 22.8°C (73°F) to a refreshing 18.4°C (65.1°F). In Aalen, September nights witness a steady temperature drop to a chilly 9°C (48.2°F).Humidity
The average relative humidity in September in Aalen is 81%.Rainfall
In Aalen, during September, the rain falls for 15.1 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 183.4 rainfall days, and 667mm (26.26") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Aalen, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 06:37 and sunset at 20:01. On the last day of September, in Aalen, sunrise is at 07:18 and sunset at 19:00 CEST.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Aalen, Germany, is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aalen, Germany
- Average high temperature in September: 18.4°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (-2.6°C).
Average pressure in September
Aalen, Germany
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in September
Aalen, Germany
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Aalen, Germany
- Average humidity in September: 81%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in September
Aalen, Germany
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is May (82mm).
The driest month (with the least rainfall) is April (35mm).
Average rainfall days in September
Aalen, Germany
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is June (21.3 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Aalen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (137mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Aalen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Aalen, 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 18min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Aalen, Germany
- Average sunshine days in September: 12 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in September
Aalen, Germany
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Aalen, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Aalen, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The month with the lowest visibility is January (7km).
