September weather forecastAffeln, Germany
September
Weather in September
September, the first month of the autumn in Affeln, is also an enjoyable month, with temperature in the range of an average high of 18.2°C (64.8°F) and an average low of 9.8°C (49.6°F).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from an agreeable 22.4°C (72.3°F) to an enjoyable 18.2°C (64.8°F). In Affeln, the nighttime temperature averages to a chilly 9.8°C (49.6°F) during September.Humidity
In Affeln, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 14.8 days. Throughout September, 37mm (1.46") of precipitation is accumulated. In Affeln, during the entire year, the rain falls for 174 days and collects up to 608mm (23.94") of precipitation.Snowfall
In Affeln, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:42 and sunset at 20:14. On the last day of the month, sunrise is at 07:28 and sunset at 19:08 CEST.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September in Affeln, Germany, is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Affeln, Germany
- Average high temperature in September: 18.2°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (3.2°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-0.9°C).
Average pressure in September
Affeln, Germany
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in September
Affeln, Germany
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is February (14km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Affeln, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (76%).
Average rainfall in September
Affeln, Germany
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Affeln, Germany
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in September
Affeln, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (143mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Affeln, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Affeln, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Affeln, Germany
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is April (14.4 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in September
Affeln, Germany
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Affeln, Germany
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Affeln, Germany
- Average visibility in September: 8km
The months with the highest visibility are April, June and August (9km).
The months with the lowest visibility are January and December (7km).
