September weather forecastSannes, France
September
Weather in September
September, the first month of the autumn in Sannes, is still a warm month, with an average temperature ranging between min 15.5°C (59.9°F) and max 24.6°C (76.3°F).Temperature
Sannes's progression into September involves a minor drop in the average high-temperature, slightly receding from 29.3°C (84.7°F) in August to a still moderately hot 24.6°C (76.3°F). During September, Sannes experiences a consistent low-temperature average of 15.5°C (59.9°F).Humidity
The average relative humidity in September is 64%.Rainfall
In Sannes, in September, during 7.1 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 102.5 rainfall days, and 409mm (16.1") of precipitation is accumulated.Snowfall
In Sannes, snow does not fall in April through November.Daylight
In September, the average length of the day in Sannes is 12h and 30min.On the first day of September, sunrise is at 07:02 and sunset at 20:13. On the last day of the month, sunrise is at 07:35 and sunset at 19:20 CEST.
Sunshine
In September, the average sunshine is 9.3h.UV index
The average daily maximum UV index in September in Sannes is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sannes, France
- Average high temperature in September: 24.6°C
The warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is January (9.6°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is August (19.1°C).
The coldest months (with the lowest average low temperature) are January and February (3.4°C).
Average pressure in September
Sannes, France
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The months with the lowest atmospheric pressure are April and November (1014.4mbar).
Average wind speed in September
Sannes, France
- Average wind speed in September: 11.9km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Sannes, France
- Average humidity in September: 64%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (57%).
Average rainfall in September
Sannes, France
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is July (15mm).
Average rainfall days in September
Sannes, France
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is November (11.3 days).
The month with the least rainy days is July (5.1 days).
Average snowfall in September
Sannes, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sannes, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and November (0 days).
Average daylight in September /
Average sunshine in September
Sannes, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).
Average sunshine days in September
Sannes, France
- Average sunshine days in September: 21.6 days
The month with the most sunshine days is July (24.8 days).
The months with the least sunshine days are April and November (17.3 days).
Average UV index in September
Sannes, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Sannes, France
- Average cloud cover in September: 18
The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Sannes, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).





