September weather forecastLeysin, Switzerland
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Leysin, Switzerland, with an average temperature varying between 15.5°C (59.9°F) and 5.5°C (41.9°F).Temperature
As Leysin enters September, the average high-temperature subtly lowers from the a refreshing 19.4°C (66.9°F) of August to a moderate 15.5°C (59.9°F). In September, the average low-temperature in Leysin, Switzerland, records at an icy 5.5°C (41.9°F) during the nights.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall in Leysin is September, when the rain falls for 6.7 days and typically collects 12mm (0.47") of precipitation.Snowfall
In Leysin, snow does not fall in June through September.Daylight
In Leysin, Switzerland, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:52 and sunset at 20:10. On the last day of the month, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
In Leysin, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leysin, Switzerland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (8.6°C).
The coldest month (with the lowest average low temperature) is February (-7.8°C).
Average pressure in September
Leysin, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Leysin, Switzerland
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is December (9.1km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Leysin, Switzerland
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July, August and October (78%).
Average rainfall in September
Leysin, Switzerland
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is December (41mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in September
Leysin, Switzerland
- Average rainfall days in September: 6.7 days
The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Leysin, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (198mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Leysin, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Leysin, Switzerland
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Leysin, Switzerland
- Average sunshine days in September: 22 days
The month with the most sunshine days is October (22.9 days).
The month with the least sunshine days is June (17.7 days).
Average UV index in September
Leysin, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Leysin, Switzerland
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Leysin, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
