September weather forecastWeil der Stadt, Germany
September
Weather in September
September, the first month of the autumn in Weil der Stadt, is still a refreshing month, with an average temperature ranging between min 9.7°C (49.5°F) and max 19.5°C (67.1°F).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 23.9°C (75°F) to a comfortable 19.5°C (67.1°F). During the nights in September, Weil der Stadt experiences a consistent average temperature of 9.7°C (49.5°F).Humidity
The average relative humidity in September in Weil der Stadt is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 9.9 days and accumulates 20mm (0.79") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 06:42 and sunset at 20:06. On the last day of September, sunrise is at 07:23 and sunset at 19:05 CEST.
Sunshine
The average sunshine in September is 8.9h.UV index
In Weil der Stadt, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Weil der Stadt, 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 (3.1°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (-1.8°C).
Average pressure in September
Weil der Stadt, Germany
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Weil der Stadt, Germany
- Average wind speed in September: 8.1km/h
The windiest months (with the highest average wind speed) are February, March and December (11.5km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Weil der Stadt, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Weil der Stadt, Germany
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (68mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in September
Weil der Stadt, Germany
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is September (9.9 days).
Average snowfall in September
Weil der Stadt, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (152mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Weil der Stadt, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Weil der Stadt, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Weil der Stadt, Germany
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is October (18.4 days).
The months with the least sunshine days are February and May (10.1 days).
Average UV index in September
Weil der Stadt, 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
Weil der Stadt, Germany
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Weil der Stadt, 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).





