September weather forecastGrevenbroich, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Grevenbroich, Germany, with temperature in the range of an average low of 11.6°C (52.9°F) and an average high of 19.5°C (67.1°F).Temperature
September marks a gentle change in average high-temperature, declining from August's moderately hot 23.9°C (75°F) to an enjoyable 19.5°C (67.1°F). In September, the average low-temperature is a cool 11.6°C (52.9°F).Humidity
In September, the average relative humidity is 76%.Rainfall
In Grevenbroich, Germany, in September, during 8.9 rainfall days, 13mm (0.51") of precipitation is typically accumulated. Throughout the year, there are 130.5 rainfall days, and 237mm (9.33") of precipitation is accumulated.Snowfall
In Grevenbroich, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 06:47 and sunset at 20:19. On the last day of September, in Grevenbroich, sunrise is at 07:33 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Grevenbroich is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grevenbroich, Germany
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.9°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Grevenbroich, 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 (1013.1mbar).
Average wind speed in September
Grevenbroich, Germany
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Grevenbroich, Germany
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Grevenbroich, Germany
- Average rainfall in September: 13mm
The wettest months (with the highest rainfall) are June and August (24mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Grevenbroich, Germany
- Average rainfall days in September: 8.9 days
The months with the highest number of rainy days are March, May and July (12.3 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Grevenbroich, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Grevenbroich, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 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
Grevenbroich, 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 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days in September
Grevenbroich, Germany
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is February (14.9 days).
Average UV index in September
Grevenbroich, Germany
- Average UV index in September: 4
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
Grevenbroich, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Grevenbroich, Germany
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
