September weather forecastRheindahlen, Germany
September
Weather in September
September, the first month of the autumn in Rheindahlen, is still a refreshing month, with temperature in the range of an average low of 11.5°C (52.7°F) and an average high of 19.6°C (67.3°F).Temperature
With the arrival of September, Rheindahlen notices a mild change in the average high-temperature, sliding from August's moderately hot 23.5°C (74.3°F) to an enjoyable 19.6°C (67.3°F). Rheindahlen experiences a consistent average temperature of 11.5°C (52.7°F) throughout the nights in September.Humidity
In Rheindahlen, the average relative humidity in September is 77%.Rainfall
In Rheindahlen, during September, the rain falls for 10.7 days and regularly aggregates up to 20mm (0.79") of precipitation. Throughout the year, in Rheindahlen, there are 142.9 rainfall days, and 281mm (11.06") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 06:48 and sunset at 20:20. On the last day of September, in Rheindahlen, Germany, sunrise is at 07:34 and sunset at 19:14 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Rheindahlen, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. 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
Rheindahlen, Germany
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is July (23.6°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (0.9°C).
Average pressure in September
Rheindahlen, Germany
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Rheindahlen, Germany
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (16.7km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in September
Rheindahlen, Germany
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in September
Rheindahlen, Germany
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is June (32mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Rheindahlen, Germany
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is August (14.6 days).
The months with the least rainy days are February and April (9.9 days).
Average snowfall in September
Rheindahlen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (25mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Rheindahlen, 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
Rheindahlen, 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 6min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Rheindahlen, Germany
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is August (13 days).
Average UV index in September
Rheindahlen, 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
Rheindahlen, 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 38).
Average visibility in September
Rheindahlen, 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).
