September weather forecastCourlevon, Switzerland
September
Weather in September
September, the first month of the autumn in Courlevon, is also an enjoyable month, with an average temperature fluctuating between 17.6°C (63.7°F) and 7.4°C (45.3°F).Temperature
Courlevon's weather subtly changes with the onset of September, barely falling from an agreeable 21.9°C (71.4°F) in August to a refreshing 17.6°C (63.7°F). Courlevon observes an average low-temperature of 7.4°C (45.3°F) during September nights.Humidity
The average relative humidity in September in Courlevon is 82%.Rainfall
September is the month with the least rainfall. Rain falls for 16.5 days and accumulates 53mm (2.09") of precipitation.Snowfall
In Courlevon, snow does not fall in June through September.Daylight
The average length of the day in September in Courlevon is 12h and 33min.On the first day of the month, sunrise is at 06:51 and sunset at 20:11. On the last day of September, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
In Courlevon, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 transforms into these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Courlevon, Switzerland
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure in September
Courlevon, Switzerland
- Average pressure in September: 1018.6mbar
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
Courlevon, Switzerland
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Courlevon, Switzerland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in September
Courlevon, Switzerland
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in September
Courlevon, Switzerland
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in September
Courlevon, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Courlevon, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Courlevon, 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: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Courlevon, Switzerland
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).
Average UV index in September
Courlevon, 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, March, November and December (UV index 2).
Average cloud cover in September
Courlevon, Switzerland
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Courlevon, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
