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
The onset of September brings a small shift in high-temperatures, falling from an agreeable 22.8°C (73°F) in August to a refreshing 18.5°C (65.3°F). Throughout September, the average low-temperature dips to a frosty 8.8°C (47.8°F).Humidity
In Sülm, the average relative humidity in September is 80%.Rainfall
In September, in Sülm, the rain falls for 9.3 days. Throughout September, 20mm (0.79") of precipitation is accumulated. In Sülm, Germany, during the entire year, the rain falls for 138 days and collects up to 304mm (11.97") of precipitation.Snowfall
In Sülm, snow does not fall in April, June through October.Daylight
In Sülm, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:49 and sunset at 20:17. On the last day of September, in Sülm, sunrise is at 07:32 and sunset at 19:14 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Sülm is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the UV index of 3 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Sülm?
What is the average humidity in September in Sülm?
How many days does it rain in September in Sülm?
When it does not snow in Sülm?
What is the average length of the day in September in Sülm?
When are sunrise and sunset in September in Sülm?
How many hours of sunshine does Sülm have in September?
What is the UV index reading in September in Sülm?
Average temperature in September
Sülm, Germany
- Average high temperature in September: 18.5°C
The warmest months (with the highest average high temperature) are July and August (22.8°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is January (-1.4°C).
Average pressure in September
Sülm, Germany
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Sülm, Germany
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is February (14km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Sülm, Germany
- Average humidity in September: 80%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Sülm, Germany
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (33mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Sülm, Germany
- Average rainfall days in September: 9.3 days
The months with the highest number of rainy days are June, July and August (13.3 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Sülm, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is December (33mm).
The months with the least snowfall are April, June, July, August, September and October (0mm).
Average snowfall days in September
Sülm, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sülm, Germany
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in September
Sülm, Germany
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is December (12.8 days).
Average UV index in September
Sülm, 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
Sülm, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Sülm, Germany
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are November and December (7km).
