September weather forecastSanteny, France
September
Weather in September
September, the first month of the autumn in Santeny, is also an agreeable month, with an average temperature fluctuating between 11.7°C (53.1°F) and 21.1°C (70°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 24.9°C (76.8°F) to an agreeable 21.1°C (70°F). Santeny's average low-temperature for the month of September records at a cool 11.7°C (53.1°F).Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Santeny is September, when the rain falls for 9.1 days and typically collects 16mm (0.63") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Santeny, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 07:07 and sunset at 20:31. On the last day of the month, sunrise is at 07:48 and sunset at 19:30 CEST.
Sunshine
In Santeny, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index in Santeny is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santeny, France
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (15°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
Santeny, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in September
Santeny, France
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Santeny, France
- Average humidity in September: 73%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Santeny, France
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Santeny, France
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.1 days).
Average snowfall in September
Santeny, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Santeny, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Santeny, 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 48min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Santeny, France
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Santeny, 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
Santeny, France
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Santeny, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
