September weather forecastRöllbach, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Röllbach, Germany, with an average temperature ranging between max 19.3°C (66.7°F) and min 9.9°C (49.8°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a refreshing 19.3°C (66.7°F) from a moderately hot 24.1°C (75.4°F). Throughout the September nights, Röllbach encounters a low-temperature of 9.9°C (49.8°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Röllbach, during September, the rain falls for 13.1 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, in Röllbach, there are 172.3 rainfall days, and 573mm (22.56") of precipitation is accumulated.Snowfall
In Röllbach, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 37min.On the first day of the month, sunrise is at 06:39 and sunset at 20:06. On the last day of September, sunrise is at 07:22 and sunset at 19:03 CEST.
Sunshine
In Röllbach, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Röllbach, Germany
- Average high temperature in September: 19.3°C
The warmest months (with the highest average high temperature) are July and August (24.1°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).
Average pressure in September
Röllbach, Germany
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1018.8mbar).
The month with the lowest atmospheric pressure is November (1014.9mbar).
Average wind speed in September
Röllbach, Germany
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Röllbach, Germany
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in September
Röllbach, Germany
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is May (69mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Röllbach, Germany
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (10.7 days).
Average snowfall in September
Röllbach, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (117mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Röllbach, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Röllbach, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in September
Röllbach, Germany
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is April (15.2 days).
The month with the least sunshine days is December (10.1 days).
Average UV index in September
Röllbach, Germany
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Röllbach, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Röllbach, Germany
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
