September weather forecastAilleux, France
September
Weather in September
September, the first month of the autumn in Ailleux, is still a pleasant month, with temperature in the range of an average high of 20.3°C (68.5°F) and an average low of 9.6°C (49.3°F).Temperature
Ailleux's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 24.6°C (76.3°F) in August to an agreeable 20.3°C (68.5°F). During September, the average low-temperature in Ailleux is a frosty 9.6°C (49.3°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Ailleux, in September, it is raining for 13.6 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, there are 188.6 rainfall days, and 694mm (27.32") of precipitation is accumulated.Snowfall
In Ailleux, snow does not fall in April through September.Daylight
In Ailleux, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 07:05 and sunset at 20:22. On the last day of the month, sunrise is at 07:41 and sunset at 19:26 CEST.
Sunshine
The average sunshine in September in Ailleux is 7.9h.UV index
In Ailleux, France, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ailleux, France
- Average high temperature in September: 20.3°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 (4.9°C).
- Average low temperature in September: 9.6°C
The months with the highest average low temperature are July and August (12.7°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in September
Ailleux, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Ailleux, France
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is February (12.4km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Ailleux, France
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (86%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Ailleux, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is June (88mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Ailleux, France
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in September
Ailleux, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Ailleux, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ailleux, France
- Average daylight in September: 12h and 30min
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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Ailleux, France
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is May (7.4 days).
Average UV index in September
Ailleux, 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
Ailleux, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ailleux, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
