September weather forecastSaclas, France
September
Weather in September
September, the first month of the autumn in Saclas, is also an agreeable month, with an average temperature fluctuating between 11.7°C (53.1°F) and 21.1°C (70°F).Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's moderately hot 24.9°C (76.8°F) to a pleasant 21.1°C (70°F). During September, Saclas consistently records a temperature low averaging a cool 11.7°C (53.1°F).Humidity
In Saclas, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 9.1 days and accumulates 16mm (0.63") of precipitation.Snowfall
April through October are months without snowfall in Saclas.Daylight
In Saclas, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:09 and sunset at 20:32. On the last day of September, in Saclas, sunrise is at 07:50 and sunset at 19:32 CEST.
Sunshine
The average sunshine in September in Saclas is 7.8h.UV index
The average daily maximum UV index in September in Saclas is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
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
Saclas, 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
Saclas, 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
Saclas, 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
Saclas, 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).





