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
Weather in September
Temperature
The arrival of September in Lille corresponds with a minor reduction in the average high-temperature, down from August's moderately hot 23.3°C (73.9°F) to a refreshing 19.9°C (67.8°F). Throughout the month of September, Lille expects an average low of 11.4°C (52.5°F).Humidity
In Lille, France, the average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Lille. Rain falls for 11.5 days and accumulates 19mm (0.75") of precipitation.Snowfall
April through October are months without snowfall in Lille, France.Daylight
The average length of the day in September in Lille is 12h and 37min.On the first day of September, sunrise is at 07:02 and sunset at 20:32. On the last day of the month, sunrise is at 07:47 and sunset at 19:27 CEST.
Sunshine
In Lille, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index in Lille is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the temperature in September in Lille?
What is the average humidity in September in Lille?
What is the driest month in Lille?
How many days does it rain in September in Lille?
When it does not snow in Lille?
How many hours of daylight does Lille have in September?
What time are sunrise and sunset in September in Lille?
How many hours of sunshine does Lille have in September?
What is the UV index reading in September in Lille?
Average temperature in September
Lille, France
- Average high temperature in September: 19.9°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 (14°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Lille, 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 (1012.2mbar).
Average wind speed in September
Lille, France
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in September
Lille, France
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Lille, France
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in September
Lille, France
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Lille, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lille, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lille, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Lille, France
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is April (14.7 days).
The month with the least sunshine days is August (11.1 days).
Average UV index in September
Lille, 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
Lille, France
- Average cloud cover in September: 43
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
Lille, 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).
Lille, France
Weather forecast for your location
2. Allow the app to use your location
