September weather forecastAltillac, France
September
Weather in September
September, the first month of the autumn in Altillac, is also an agreeable month, with an average temperature varying between 9.9°C (49.8°F) and 21.7°C (71.1°F).Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a moderately hot 25.7°C (78.3°F) in August to a pleasant 21.7°C (71.1°F). Throughout September in Altillac, a steady low-temperature average of 9.9°C (49.8°F) is noted.Humidity
In September, the average relative humidity is 75%.Rainfall
July and September are months with the least rain in Altillac, France, when the rain falls for 11.4 days and typically aggregates up to 35mm (1.38") of rain.Snowfall
April, June through September are months without snowfall.Daylight
The average length of the day in September in Altillac is 12h and 31min.On the first day of the month, sunrise is at 07:15 and sunset at 20:29. On the last day of September, sunrise is at 07:50 and sunset at 19:34 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altillac, France
- Average high temperature in September: 21.7°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).
Average pressure in September
Altillac, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Altillac, France
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.8km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Altillac, France
- Average humidity in September: 75%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Altillac, France
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (84mm).
The driest months (with the least rainfall) are July and September (35mm).
Average rainfall days in September
Altillac, France
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is September (11.4 days).
Average snowfall in September
Altillac, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (42mm).
The months with the least snowfall are April, June, July, August and September (0mm).
Average snowfall days in September
Altillac, 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Altillac, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and November (Average sunshine: 4h and 12min).
Average sunshine days in September
Altillac, 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 May (10.1 days).
Average UV index in September
Altillac, 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
Altillac, France
- Average cloud cover in September: 35
The month with the most cloud cover is November (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Altillac, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August and September (8km).
The months with the lowest visibility are January, February, October, November and December (7km).
