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
As September commences, the average high-temperature subtly reduces, transitioning from a refreshing 15.8°C (60.4°F) in August to a fresh 11.5°C (52.7°F). Throughout the month of September, Alpiglen reports a steady low-temperature average of 2.5°C (36.5°F).Humidity
In Alpiglen, the average relative humidity in September is 85%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.4 days and typically collects 50mm (1.97") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, there are 97.4 snowfall days, and 2150mm (84.65") of snow is accumulated.Daylight
The average length of the day in September in Alpiglen is 12h and 33min.On the first day of the month, sunrise is at 06:48 and sunset at 20:07. On the last day of September, sunrise is at 07:25 and sunset at 19:09 CEST.
Sunshine
In Alpiglen, the average sunshine in September is 7.5h.UV index
In Alpiglen, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 2 leads to the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alpiglen in September?
What is the average humidity in September in Alpiglen?
What is the driest month in Alpiglen?
How many days does it rain in September in Alpiglen?
When does it start snowing in Alpiglen?
What is the average length of the day in September in Alpiglen?
When is the sunrise / sunset in September in Alpiglen?
How long on average sun shines in September in Alpiglen?
What is the UV index intensity in September in Alpiglen?
Average temperature in September
Alpiglen, Switzerland
- Average high temperature in September: 11.5°C
The warmest month (with the highest average high temperature) is August (15.8°C).
The months with the lowest average high temperature are January and February (-2.8°C).
- Average low temperature in September: 2.5°C
The month with the highest average low temperature is July (5.7°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).
Average pressure in September
Alpiglen, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Alpiglen, Switzerland
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8.7km/h).
The calmest month (with the lowest average wind speed) is August (5.8km/h).
Average humidity in September
Alpiglen, Switzerland
- Average humidity in September: 85%
The month with the highest relative humidity is March (92%).
The months with the lowest relative humidity are July and August (83%).
Average rainfall in September
Alpiglen, Switzerland
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is May (117mm).
The driest month (with the least rainfall) is September (50mm).
Average rainfall days in September
Alpiglen, Switzerland
- Average rainfall days in September: 16.4 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Alpiglen, Switzerland
- Average snowfall in September: 3mm
The month with the highest snowfall is December (423mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Alpiglen, Switzerland
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Alpiglen, Switzerland
- Average daylight in September: 12h and 3min
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: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Alpiglen, Switzerland
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is June (5.4 days).
Average UV index in September
Alpiglen, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April, November and December (UV index 1).
Average cloud cover in September
Alpiglen, Switzerland
- Average cloud cover in September: 51
The months with the most cloud cover are February and May (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 47).
Average visibility in September
Alpiglen, Switzerland
- Average visibility in September: 6km
The months with the highest visibility are June, July, August, October, November and December (7km).
The month with the lowest visibility is February (5km).
