September weather forecastAppen, Germany
September
Weather in September
September, the first month of the autumn in Appen, is still a refreshing month, with an average temperature ranging between min 10.7°C (51.3°F) and max 18.3°C (64.9°F).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's agreeable 22.3°C (72.1°F) to a refreshing 18.3°C (64.9°F). Appen cools down to an average low-temperature of 10.7°C (51.3°F) throughout the month of September.Humidity
In Appen, Germany, the average relative humidity in September is 82%.Rainfall
In Appen, Germany, in September, it is raining for 9.5 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, there are 134 rainfall days, and 228mm (8.98") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Appen.Daylight
The average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 06:30 and sunset at 20:10. On the last day of September, sunrise is at 07:21 and sunset at 18:59 CEST.
Sunshine
In Appen, Germany, the average sunshine in September is 7.8h.UV index
In Appen, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Appen, Germany
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (22.3°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.7°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).
Average pressure in September
Appen, 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
Appen, Germany
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in September
Appen, Germany
- Average humidity in September: 82%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Appen, Germany
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is July (29mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in September
Appen, Germany
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Appen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Appen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 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
Appen, Germany
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Appen, Germany
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Appen, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Appen, Germany
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Appen, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
