September weather forecastSaint-Ay, France
September
Weather in September
September, the first month of the autumn in Saint-Ay, is still a pleasant month, with temperature in the range of an average low of 11.7°C (53.1°F) and an average high of 21.1°C (70°F).Temperature
Saint-Ay, France, experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 24.8°C (76.6°F) in August to an agreeable 21.1°C (70°F). Throughout September, an average low-temperature of 11.7°C (53.1°F) is experienced in Saint-Ay.Humidity
The average relative humidity in September in Saint-Ay is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 21mm (0.83") of precipitation.Snowfall
April through October are months without snowfall in Saint-Ay.Daylight
The average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 07:11 and sunset at 20:33. On the last day of the month, sunrise is at 07:51 and sunset at 19:34 CEST.
Sunshine
The average sunshine in September in Saint-Ay, France, is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Around midday, solar radiation is most harmful; hence, exposure should be limited. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint-Ay, France
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Saint-Ay, 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 (1014mbar).
Average wind speed in September
Saint-Ay, France
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in September
Saint-Ay, France
- Average humidity in September: 73%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Saint-Ay, France
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is June (51mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Saint-Ay, France
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Saint-Ay, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Ay, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Saint-Ay, 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 30min).
- 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 48min).
Average sunshine days in September
Saint-Ay, France
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is December (11.3 days).
Average UV index in September
Saint-Ay, 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
Saint-Ay, France
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in September
Saint-Ay, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
