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
September sees a slight reduction in average high-temperature, with a shift from a comfortable 16.7°C (62.1°F) in August to a fresh 12.3°C (54.1°F). In the month of September, Vétroz witnesses a consistent average low-temperature of 3.3°C (37.9°F).Humidity
In September, the average relative humidity in Vétroz is 82%.Rainfall
In Vétroz, Switzerland, in September, it is raining for 19.4 days, with typically 70mm (2.76") of accumulated precipitation. In Vétroz, during the entire year, the rain falls for 226.6 days and collects up to 1272mm (50.08") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:51 and sunset at 20:09. On the last day of the month, sunrise is at 07:28 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September in Vétroz is 8.3h.UV index
In Vétroz, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Take precautions - Protection against sun damage is advised. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the average September temperature in Vétroz?
What is the average humidity in September in Vétroz?
How many days does it rain in September in Vétroz?
When it does not snow in Vétroz?
Does it snow in Vétroz in September?
What is the average length of the day in September in Vétroz?
When is the sunrise / sunset in September in Vétroz?
How long on average sun shines in September in Vétroz?
How high is the UV index in September in Vétroz?
Average temperature in September
Vétroz, Switzerland
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in September: 3.3°C
The month with the highest average low temperature is August (6.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Vétroz, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Vétroz, Switzerland
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in September
Vétroz, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in September
Vétroz, Switzerland
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is May (158mm).
The driest month (with the least rainfall) is October (63mm).
Average rainfall days in September
Vétroz, Switzerland
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is May (24.9 days).
The month with the least rainy days is December (13.3 days).
Average snowfall in September
Vétroz, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (175mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Vétroz, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vétroz, Switzerland
- Average daylight in September: 12h and 3min
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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in September
Vétroz, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (14.8 days).
The month with the least sunshine days is May (4.2 days).
Average UV index in September
Vétroz, 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
Vétroz, Switzerland
- Average cloud cover in September: 41
The months with the most cloud cover are February and March (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Vétroz, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August, October, November and December (8km).
The month with the lowest visibility is March (6km).
Vétroz, Switzerland
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