September weather forecastSielmingen, Germany
September
Weather in September
September, the first month of the autumn in Sielmingen, is also an enjoyable month, with an average temperature fluctuating between 9.5°C (49.1°F) and 19°C (66.2°F).Temperature
During the transition into September, Sielmingen observes a decrease in the average high-temperature, falling from a warm 24°C (75.2°F) in August to a refreshing 19°C (66.2°F). Throughout the month of September, the average temperature dips to a frosty 9.5°C (49.1°F) at night.Humidity
In Sielmingen, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall in Sielmingen is September, when the rain falls for 11.5 days and typically collects 28mm (1.1") of precipitation.Snowfall
In Sielmingen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 06:40 and sunset at 20:04. On the last day of September, in Sielmingen, sunrise is at 07:21 and sunset at 19:03 CEST.
Sunshine
In Sielmingen, the average sunshine in September is 8.9h.UV index
In Sielmingen, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sielmingen, Germany
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 9.5°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
Sielmingen, 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
Sielmingen, Germany
- Average wind speed in September: 8.1km/h
The windiest months (with the highest average wind speed) are February and March (11.7km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).
Average humidity in September
Sielmingen, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in September
Sielmingen, Germany
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is May (73mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Sielmingen, Germany
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in September
Sielmingen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (101mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sielmingen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sielmingen, 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 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Sielmingen, Germany
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is May (8.1 days).
Average UV index in September
Sielmingen, 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
Sielmingen, Germany
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Sielmingen, 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).





