September weather forecastAyen, France
September
Weather in September
September, the first month of the autumn in Ayen, is also a moderately hot month, with an average temperature fluctuating between 23.3°C (73.9°F) and 10.7°C (51.3°F).Temperature
During the shift to September, Ayen records a mild decrease in average high-temperature, moving from a warm 27.2°C (81°F) in August to a still moderately hot 23.3°C (73.9°F). Ayen marks a considerable descent from the daytime apex, as the average temperature dips to a cool 10.7°C (51.3°F) at night throughout September.Humidity
The average relative humidity in September is 73%.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 34mm (1.34") of precipitation is accumulated. Throughout the year, there are 164.5 rainfall days, and 612mm (24.09") of precipitation is accumulated.Snowfall
In Ayen, snow does not fall in March through October.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 07:17 and sunset at 20:32. On the last day of September, in Ayen, sunrise is at 07:52 and sunset at 19:36 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index in Ayen, France, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ayen, France
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in September
Ayen, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Ayen, France
- Average wind speed in September: 6.9km/h
The windiest months (with the highest average wind speed) are February and March (9.4km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Ayen, France
- Average humidity in September: 73%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Ayen, France
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Ayen, France
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is September (10.6 days).
Average snowfall in September
Ayen, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Ayen, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 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
Ayen, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and November (Average sunshine: 4h and 12min).
Average sunshine days in September
Ayen, France
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in September
Ayen, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ayen, France
- Average cloud cover in September: 34
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ayen, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August and September (8km).
The months with the lowest visibility are January, February, October, November and December (7km).
