September weather forecastKönigswinter, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Königswinter, Germany, with an average temperature varying between 9.8°C (49.6°F) and 18.9°C (66°F).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 18.9°C (66°F). Königswinter, during September nights, observes an average temperature of 9.8°C (49.6°F).Humidity
In Königswinter, the average relative humidity in September is 79%.Rainfall
The months with the least rainfall in Königswinter are April and September Rain falls for 10.5 days and accumulates 17mm (0.67") of rain.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Königswinter, Germany, is 12h and 37min.On the first day of the month, sunrise is at 06:46 and sunset at 20:16. On the last day of September, in Königswinter, sunrise is at 07:30 and sunset at 19:11 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Königswinter, 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 (13.1°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).
Average pressure in September
Königswinter, 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 (1013.7mbar).
Average wind speed in September
Königswinter, Germany
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Königswinter, Germany
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Königswinter, Germany
- Average rainfall in September: 17mm
The wettest months (with the highest rainfall) are May and August (32mm).
The driest months (with the least rainfall) are April and September (17mm).
Average rainfall days in September
Königswinter, Germany
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in September
Königswinter, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Königswinter, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
Königswinter, 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 6min).
- 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
Königswinter, Germany
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Königswinter, Germany
- Average UV index in September: 3
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
Königswinter, 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
Königswinter, 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).
