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
The average high-temperature slightly decreases in September, shifting from a refreshing 18.5°C (65.3°F) in August to a mild 14.2°C (57.6°F). Throughout September, an average low-temperature of 3.8°C (38.8°F) is expected.Humidity
In Valendas, the average relative humidity in September is 82%.Rainfall
In Valendas, during September, the rain falls for 12.1 days and regularly aggregates up to 27mm (1.06") of precipitation. In Valendas, during the entire year, the rain falls for 142.4 days and collects up to 455mm (17.91") of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, there are 75.1 snowfall days, and 712mm (28.03") of snow is accumulated.Daylight
The average length of the day in September in Valendas is 12h and 33min.On the first day of the month, sunrise is at 06:43 and sunset at 20:02. On the last day of September, sunrise is at 07:20 and sunset at 19:04 CEST.
Sunshine
The average sunshine in September in Valendas, Switzerland, is 8.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the average September temperature in Valendas?
What is the average humidity in September in Valendas?
How much does it rain in Valendas in September?
When does it start snowing in Valendas?
What is the average length of the day in September in Valendas?
What time are sunrise and sunset in September in Valendas?
How many hours of sunshine does Valendas have in September?
What is the UV index intensity in September in Valendas?
Average temperature in September
Valendas, Switzerland
- Average high temperature in September: 14.2°C
The warmest months (with the highest average high temperature) are July and August (18.5°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in September: 3.8°C
The month with the highest average low temperature is August (7°C).
The coldest month (with the lowest average low temperature) is February (-10.1°C).
Average pressure in September
Valendas, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Valendas, Switzerland
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is November (8km/h).
The calmest month (with the lowest average wind speed) is August (6km/h).
Average humidity in September
Valendas, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (91%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Valendas, Switzerland
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is August (71mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in September
Valendas, Switzerland
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Valendas, Switzerland
- Average snowfall in September: 3mm
The month with the highest snowfall is January (144mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Valendas, Switzerland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Valendas, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Valendas, Switzerland
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in September
Valendas, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Valendas, Switzerland
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Valendas, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
Valendas, Switzerland
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