September weather forecastDielheim, Germany
September
Weather in September
September, the first month of the autumn in Dielheim, is also an agreeable month, with an average temperature varying between 10.9°C (51.6°F) and 20.6°C (69.1°F).Temperature
In Dielheim, the average high-temperature in September decreases from a moderately hot 25.7°C (78.3°F) in August to an agreeable 20.6°C (69.1°F). September generally records an average low-temperature of 10.9°C (51.6°F).Humidity
The average relative humidity in September is 74%.Rainfall
In Dielheim, in September, during 9.6 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, in Dielheim, there are 143.7 rainfall days, and 326mm (12.83") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Dielheim.Daylight
In Dielheim, Germany, the average length of the day in September is 12h and 36min.On the first day of September, sunrise is at 06:42 and sunset at 20:07. On the last day of the month, sunrise is at 07:24 and sunset at 19:05 CEST.
Sunshine
In September, the average sunshine in Dielheim, Germany, is 8.8h.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 unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dielheim, Germany
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (4.1°C).
- Average low temperature in September: 10.9°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 (-0.5°C).
Average pressure in September
Dielheim, Germany
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is November (1015.1mbar).
Average wind speed in September
Dielheim, Germany
- Average wind speed in September: 8.6km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Dielheim, Germany
- Average humidity in September: 74%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Dielheim, Germany
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is May (46mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Dielheim, Germany
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is September (9.6 days).
Average snowfall in September
Dielheim, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Dielheim, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dielheim, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Dielheim, Germany
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Dielheim, Germany
- Average UV index in September: 4
The months with the highest UV index are May, 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
Dielheim, Germany
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Dielheim, Germany
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
