Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a comfortable 19.8°C (67.6°F) from a moderately hot 23.3°C (73.9°F). In the month of September, the temperature in Arleux generally rests at an average low of 11.4°C (52.5°F).Humidity
In Arleux, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall in Arleux is September, when the rain falls for 7 days and typically collects 5mm (0.2") of precipitation.Snowfall
In Arleux, snow does not fall in March through November.Daylight
In Arleux, France, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 07:03 and sunset at 20:31. On the last day of September, sunrise is at 07:47 and sunset at 19:27 CEST.
Sunshine
In Arleux, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in Arleux is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Arleux?
What is the average humidity in September in Arleux?
What is the driest month in Arleux?
How many days does it rain in September in Arleux?
When it does not snow in Arleux?
What is the average length of the day in September in Arleux?
When are sunrise and sunset in September in Arleux?
How many hours of sunshine does Arleux have in September?
How high is the UV index in September in Arleux?
Average temperature in September
Arleux, France
- Average high temperature in September: 19.8°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in September
Arleux, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Arleux, France
- Average wind speed in September: 12.4km/h
The windiest months (with the highest average wind speed) are February and December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in September
Arleux, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Arleux, France
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in September
Arleux, France
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is June (11.1 days).
The month with the least rainy days is September (7 days).
Average snowfall in September
Arleux, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Arleux, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Arleux, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Arleux, France
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in September
Arleux, 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
Arleux, France
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Arleux, 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).
