September weather forecastSottens, Switzerland
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Sottens, Switzerland, with an average temperature fluctuating between 9.2°C (48.6°F) and 18.3°C (64.9°F).Temperature
September sees a slight reduction in average high-temperature, with a shift from an agreeable 22.1°C (71.8°F) in August to an enjoyable 18.3°C (64.9°F). Sottens's nighttime temperature in September drops to an average of 9.2°C (48.6°F).Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 38mm (1.5") of precipitation.Snowfall
In Sottens, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:53 and sunset at 20:12. On the last day of September, sunrise is at 07:31 and sunset at 19:14 CEST.
Sunshine
In September, the average sunshine in Sottens is 9.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sottens, Switzerland
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.2°C
The month with the highest average low temperature is July (12.6°C).
The coldest months (with the lowest average low temperature) are January and February (-2.2°C).
Average pressure in September
Sottens, Switzerland
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Sottens, Switzerland
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in September
Sottens, Switzerland
- Average humidity in September: 79%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Sottens, Switzerland
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in September
Sottens, Switzerland
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Sottens, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (184mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sottens, Switzerland
- Average snowfall days in September: 0.1 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 and August (0 days).
Average daylight in September /
Average sunshine in September
Sottens, Switzerland
- Average daylight in September: 12h and 36min
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 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Sottens, Switzerland
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in September
Sottens, Switzerland
- Average UV index in September: 4
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
Sottens, Switzerland
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Sottens, Switzerland
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
