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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a pleasant 22.3°C (72.1°F) in August to an enjoyable 18.1°C (64.6°F). In the month of September, Cornaux witnesses a consistent average low-temperature of 8.1°C (46.6°F).Humidity
In Cornaux, the average relative humidity in September is 83%.Rainfall
In Cornaux, Switzerland, during September, the rain falls for 14.9 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, in Cornaux, there are 179.2 rainfall days, and 566mm (22.28") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Cornaux.Daylight
The average length of the day in September in Cornaux is 12h and 34min.On the first day of September in Cornaux, sunrise is at 06:51 and sunset at 20:11. On the last day of the month, sunrise is at 07:30 and sunset at 19:13 CEST.
Sunshine
In September, the average sunshine in Cornaux is 7.8h.UV index
In Cornaux, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Cornaux?
What is the average humidity in September in Cornaux?
How many days does it rain in September in Cornaux?
When it does not snow in Cornaux?
Does it snow in Cornaux in September?
What is the average length of the day in September in Cornaux?
What time are sunrise and sunset in September in Cornaux?
How long on average sun shines in September in Cornaux?
How high is the UV index in September in Cornaux?
Average temperature in September
Cornaux, Switzerland
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is January (2.7°C).
- Average low temperature in September: 8.1°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (-3.3°C).
Average pressure in September
Cornaux, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Cornaux, Switzerland
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is February (12km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in September
Cornaux, Switzerland
- Average humidity in September: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Cornaux, Switzerland
- Average rainfall in September: 37mm
The wettest months (with the highest rainfall) are June and August (75mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in September
Cornaux, Switzerland
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in September
Cornaux, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (65mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Cornaux, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cornaux, 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Cornaux, Switzerland
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Cornaux, Switzerland
- Average UV index in September: 3
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
Cornaux, Switzerland
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Cornaux, Switzerland
- Average visibility in September: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (8km).
Cornaux, Switzerland
Weather forecast for your location
2. Allow the app to use your location