September weather forecastBilley, France
September
Weather in September
September, the first month of the autumn in Billey, is still a pleasant month, with an average temperature varying between 20.5°C (68.9°F) and 10.5°C (50.9°F).Temperature
Billey's progression into September involves a gentle drop in the average high-temperature, from a warm 24.6°C (76.3°F) in August to an agreeable 20.5°C (68.9°F). Billey's average low-temperature during September nights is observed to be a cool 10.5°C (50.9°F).Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 26mm (1.02") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Billey is 12h and 34min.On the first day of the month, sunrise is at 06:58 and sunset at 20:18. On the last day of September, sunrise is at 07:36 and sunset at 19:19 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Billey, France
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is August (24.6°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in September
Billey, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Billey, France
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (14.3km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Billey, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Billey, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Billey, France
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (10.6 days).
Average snowfall in September
Billey, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Billey, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Billey, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in September
Billey, France
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in September
Billey, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Billey, France
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Billey, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, June, July, August and September (9km).
The months with the lowest visibility are January, May, October, November and December (8km).
