September weather forecastArgenteuil, France
September
Weather in September
September, the first month of the autumn in Argenteuil, is also an agreeable month, with an average temperature ranging between min 11.7°C (53.1°F) and max 20.9°C (69.6°F).Temperature
Argenteuil records a mild change in average high-temperature during September, easing from a moderately hot 24.5°C (76.1°F) in August to a pleasant 20.9°C (69.6°F). September nights in Argenteuil are marked by an average temperature drop to a fresh 11.7°C (53.1°F).Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 7.6 days and accumulates 6mm (0.24") of precipitation.Snowfall
In Argenteuil, snow does not fall in April through October.Daylight
In Argenteuil, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 07:08 and sunset at 20:33. On the last day of the month, sunrise is at 07:49 and sunset at 19:31 CEST.
Sunshine
In Argenteuil, the average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index in Argenteuil is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Argenteuil, France
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
Argenteuil, France
- Average pressure in September: 1018.1mbar
The months with the highest atmospheric pressure are September and December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Argenteuil, France
- Average wind speed in September: 10.5km/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 (10.1km/h).
Average humidity in September
Argenteuil, 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 (68%).
Average rainfall in September
Argenteuil, France
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (6mm).
Average rainfall days in September
Argenteuil, France
- Average rainfall days in September: 7.6 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is September (7.6 days).
Average snowfall in September
Argenteuil, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Argenteuil, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Argenteuil, 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 18min).
- Average sunshine in September: 7h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Argenteuil, France
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is September (19.6 days).
The months with the least sunshine days are February and July (14.3 days).
Average UV index in September
Argenteuil, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Argenteuil, France
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in September
Argenteuil, 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).
