Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
A mild shift in the average high-temperature occurs in September, reducing from a pleasant 20.7°C (69.3°F) in August to a refreshing 16.7°C (62.1°F). September's nights observe an average temperature of 8.5°C (47.3°F).Humidity
In Roetgen, Germany, the average relative humidity in September is 85%.Rainfall
In Roetgen, during September, the rain falls for 13.8 days and regularly aggregates up to 40mm (1.57") of precipitation. In Roetgen, Germany, during the entire year, the rain falls for 173 days and collects up to 647mm (25.47") of precipitation.Snowfall
In Roetgen, Germany, snow does not fall in June through September.Daylight
In Roetgen, the average length of the day in September is 12h and 37min.On the first day of September in Roetgen, sunrise is at 06:50 and sunset at 20:19. On the last day of the month, sunrise is at 07:34 and sunset at 19:15 CEST.
Sunshine
In Roetgen, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Roetgen?
What is the average humidity in September in Roetgen?
How many days does it rain in September in Roetgen?
When it does not snow in Roetgen?
Does it snow in Roetgen in September?
What is the average length of the day in September in Roetgen?
When are sunrise and sunset in September in Roetgen?
How many hours of sunshine does Roetgen have in September?
How high is the UV index in September in Roetgen?
Average temperature in September
Roetgen, Germany
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 8.5°C
The months with the highest average low temperature are July and August (11.3°C).
The coldest months (with the lowest average low temperature) are January and February (-1.8°C).
Average pressure in September
Roetgen, Germany
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in September
Roetgen, Germany
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in September
Roetgen, Germany
- Average humidity in September: 85%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (80%).
Average rainfall in September
Roetgen, Germany
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days in September
Roetgen, Germany
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Roetgen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is February (159mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Roetgen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Roetgen, Germany
- Average daylight in September: 12h and 4min
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: 7h and 0min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Roetgen, Germany
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in September
Roetgen, Germany
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Roetgen, Germany
- Average cloud cover in September: 51
The month with the most cloud cover is December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 47).
Average visibility in September
Roetgen, Germany
- Average visibility in September: 7km
The months with the highest visibility are February, March, April, May, June, July, August, October and December (8km).
The months with the lowest visibility are January, September and November (7km).
