September weather forecastSézanne, France
September
Weather in September
September, the first month of the autumn in Sézanne, is still a pleasant month, with an average temperature fluctuating between 11.4°C (52.5°F) and 21.1°C (70°F).Temperature
With the arrival of September, Sézanne notices a mild change in the average high-temperature, sliding from August's moderately hot 25.3°C (77.5°F) to a pleasant 21.1°C (70°F). The average temperature in Sézanne during September nights dips to a fresh 11.4°C (52.5°F).Humidity
In Sézanne, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Sézanne is September, when the rain falls for 11.1 days and typically collects 25mm (0.98") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:02 and sunset at 20:27. On the last day of September, in Sézanne, sunrise is at 07:43 and sunset at 19:25 CEST.
Sunshine
In September, the average sunshine is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Be vigilant - Preventing sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sézanne, France
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Sézanne, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is November (1014.3mbar).
Average wind speed in September
Sézanne, France
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Sézanne, France
- Average humidity in September: 74%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Sézanne, France
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in September
Sézanne, France
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in September
Sézanne, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Sézanne, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Sézanne, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Sézanne, France
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Sézanne, France
- Average UV index in September: 4
The month with the highest UV index is 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
Sézanne, France
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in September
Sézanne, France
- Average visibility in September: 9km
The months with the highest visibility are March, April, July, August and September (9km).
The months with the lowest visibility are January, February, May, June, October, November and December (8km).
