September weather forecastDaillens, Switzerland
September
Weather in September
September, the first month of the autumn in Daillens, is still a comfortable month, with an average temperature fluctuating between 9.2°C (48.6°F) and 18.3°C (64.9°F).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a pleasant 22.1°C (71.8°F) in August to an enjoyable 18.3°C (64.9°F). Nighttime temperatures hover around an average low of 9.2°C (48.6°F) in September.Humidity
The average relative humidity in September in Daillens is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 38mm (1.5") of precipitation.Snowfall
In Daillens, Switzerland, snow does not fall in June through September.Daylight
In Daillens, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:54 and sunset at 20:12. On the last day of September, sunrise is at 07:31 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine in Daillens is 9.1h.UV index
In Daillens, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, Switzerland
- Average daylight in September: 12h and 30min
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
Daillens, 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
Daillens, 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
Daillens, 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
Daillens, 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).
