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
The arrival of September corresponds with a light shift in temperature, down from a moderately hot 24°C (75.2°F) in August to an agreeable 20.1°C (68.2°F). In Celles-sur-Aisne, an average low-temperature of 11°C (51.8°F) is recorded during September nights.Humidity
In Celles-sur-Aisne, the average relative humidity in September is 76%.Rainfall
In Celles-sur-Aisne, in September, during 9.7 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, in Celles-sur-Aisne, France, there are 158.9 rainfall days, and 329mm (12.95") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Celles-sur-Aisne, the average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 07:02 and sunset at 20:28. On the last day of September, sunrise is at 07:45 and sunset at 19:26 CEST.
Sunshine
In Celles-sur-Aisne, France, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index in Celles-sur-Aisne, France, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Take necessary precautions - Defending against sun damage is advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are September temperatures in Celles-sur-Aisne?
What is the average humidity in September in Celles-sur-Aisne?
How much does it rain in Celles-sur-Aisne in September?
When it does not snow in Celles-sur-Aisne?
How many hours of daylight does Celles-sur-Aisne have in September?
What time are sunrise and sunset in September in Celles-sur-Aisne?
How long on average sun shines in September in Celles-sur-Aisne?
What is the UV index reading in September in Celles-sur-Aisne?
Average temperature in September
Celles-sur-Aisne, France
- Average high temperature in September: 20.1°C
The warmest month (with the highest average high temperature) is August (24°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Celles-sur-Aisne, France
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).
Average wind speed in September
Celles-sur-Aisne, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.1km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Celles-sur-Aisne, France
- Average humidity in September: 76%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Celles-sur-Aisne, France
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is December (39mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Celles-sur-Aisne, France
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in September
Celles-sur-Aisne, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Celles-sur-Aisne, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Celles-sur-Aisne, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Celles-sur-Aisne, France
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Celles-sur-Aisne, 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
Celles-sur-Aisne, France
- Average cloud cover in September: 38
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Celles-sur-Aisne, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August and September (9km).
The months with the lowest visibility are January, May, June, October, November and December (8km).
Celles-sur-Aisne, France
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