September weather forecastWelzheim, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Welzheim, Germany, with an average temperature ranging between min 9°C (48.2°F) and max 19°C (66.2°F).Temperature
In Welzheim, the average high-temperature in September slightly decreases from a moderately hot 23.5°C (74.3°F) in August to a refreshing 19°C (66.2°F). Nighttime temperature experiences an average drop to a frosty 9°C (48.2°F) in September.Humidity
In Welzheim, the average relative humidity in September is 80%.Rainfall
In Welzheim, during September, the rain falls for 12.8 days and regularly aggregates up to 34mm (1.34") of precipitation. In Welzheim, during the entire year, the rain falls for 177.5 days and collects up to 585mm (23.03") of precipitation.Snowfall
In Welzheim, Germany, snow does not fall in May through September.Daylight
The average length of the day in September in Welzheim is 12h and 35min.On the first day of the month, sunrise is at 06:39 and sunset at 20:03. On the last day of September, sunrise is at 07:20 and sunset at 19:02 CEST.
Sunshine
The average sunshine in September in Welzheim is 8.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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
Welzheim, Germany
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (2.6°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-2.1°C).
Average pressure in September
Welzheim, Germany
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Welzheim, Germany
- Average wind speed in September: 8.2km/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 (7.9km/h).
Average humidity in September
Welzheim, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in September
Welzheim, Germany
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is May (72mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in September
Welzheim, Germany
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (10.9 days).
Average snowfall in September
Welzheim, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (87mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Welzheim, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 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
Welzheim, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Welzheim, Germany
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (16.4 days).
The months with the least sunshine days are May and June (9.5 days).
Average UV index in September
Welzheim, Germany
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Welzheim, Germany
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Welzheim, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).





