September weather forecastSissonne, France
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Sissonne, France, with an average temperature varying between 11°C (51.8°F) and 20.1°C (68.2°F).Temperature
Sissonne's September weather features a light decline in high-temperatures, reducing from a moderately hot 24°C (75.2°F) in August to an agreeable 20.1°C (68.2°F). Sissonne, in the month of September, anticipates a consistent average low-temperature of 11°C (51.8°F).Humidity
In September, the average relative humidity in Sissonne is 76%.Rainfall
In September, in Sissonne, the rain falls for 9.7 days. Throughout September, 20mm (0.79") of precipitation is accumulated. Throughout the year, in Sissonne, there are 158.9 rainfall days, and 329mm (12.95") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Sissonne, France.Daylight
In September, the average length of the day in Sissonne is 12h and 36min.On the first day of September in Sissonne, France, sunrise is at 07:00 and sunset at 20:27. On the last day of the month, sunrise is at 07:43 and sunset at 19:24 CEST.
Sunshine
In Sissonne, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Sissonne is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, France
- Average daylight in September: 12h and 36min
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 12min).
- Average sunshine in September: 7h and 48min
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
Sissonne, 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
Sissonne, 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
Sissonne, 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
Sissonne, 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).
