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
Weather in September
Temperature
September signals a slight drop in average high-temperature, sliding from August's pleasant 21°C (69.8°F) to a comfortable 16.8°C (62.2°F). Throughout September, Sevelen encounters an average temperature drop to a chilly 6°C (42.8°F).Humidity
In Sevelen, the average relative humidity in September is 79%.Rainfall
In Sevelen, during September, the rain falls for 13.8 days and regularly aggregates up to 55mm (2.17") of precipitation. Throughout the year, in Sevelen, there are 149.5 rainfall days, and 983mm (38.7") of precipitation is accumulated.Snowfall
Months with snowfall in Sevelen are January through May, September through December. September is the first month it typically snows in Sevelen, Switzerland. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Sevelen, Switzerland, during the entire year, snow falls for 80 days and aggregates up to 2699mm (106.26") of snow.Daylight
In Sevelen, Switzerland, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 06:41 and sunset at 20:01. On the last day of the month, sunrise is at 07:20 and sunset at 19:03 CEST.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Sevelen, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What are September temperatures in Sevelen?
What is the average humidity in September in Sevelen?
How much does it rain in Sevelen in September?
When does it start to snow in Sevelen?
How many hours of daylight does Sevelen have in September?
When is the sunrise / sunset in September in Sevelen?
How many hours of sunshine does Sevelen have in September?
What is the UV index intensity in September in Sevelen?
Average temperature in September
Sevelen, Switzerland
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (0.8°C).
- Average low temperature in September: 6°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is February (-7.4°C).
Average pressure in September
Sevelen, Switzerland
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Sevelen, Switzerland
- Average wind speed in September: 6.5km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest months (with the lowest average wind speed) are August and September (6.5km/h).
Average humidity in September
Sevelen, Switzerland
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Sevelen, Switzerland
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is August (115mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Sevelen, Switzerland
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in September
Sevelen, Switzerland
- Average snowfall in September: 1mm
The month with the highest snowfall is January (613mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Sevelen, Switzerland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sevelen, Switzerland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Sevelen, Switzerland
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in September
Sevelen, Switzerland
- 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, March, November and December (UV index 2).
Average cloud cover in September
Sevelen, Switzerland
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Sevelen, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January and February (7km).
Sevelen, Switzerland
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