September weather forecastSiegburg, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Siegburg, Germany, with an average temperature varying between 18.9°C (66°F) and 9.8°C (49.6°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 23.3°C (73.9°F) to a comfortable 18.9°C (66°F). Throughout the month of September, Siegburg witnesses an average temperature of 9.8°C (49.6°F).Humidity
The average relative humidity in September is 78%.Rainfall
The months with the least rainfall are April and September Rain falls for 10.5 days and accumulates 17mm (0.67") of rain.Snowfall
In Siegburg, Germany, snow does not fall in April through October.Daylight
In Siegburg, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:45 and sunset at 20:16. On the last day of September, sunrise is at 07:30 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September in Siegburg is 8.4h.UV index
In September, the average daily maximum UV index in Siegburg 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 ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Siegburg, Germany
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (4°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in September
Siegburg, Germany
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in September
Siegburg, Germany
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is February (12.8km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in September
Siegburg, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Siegburg, Germany
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is August (33mm).
The driest months (with the least rainfall) are April and September (17mm).
Average rainfall days in September
Siegburg, Germany
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in September
Siegburg, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (35mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Siegburg, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Siegburg, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Siegburg, Germany
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is December (11.4 days).
Average UV index in September
Siegburg, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Siegburg, Germany
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Siegburg, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
