September weather forecastLiessies, France
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Liessies, France, with an average temperature fluctuating between 19.4°C (66.9°F) and 10.4°C (50.7°F).Temperature
Liessies's September weather shows a modest shift in high-temperatures, falling from August's pleasant 22.7°C (72.9°F) to an enjoyable 19.4°C (66.9°F). Throughout the nights in September, Liessies experiences an average low-temperature of 10.4°C (50.7°F).Humidity
In Liessies, the average relative humidity in September is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 26mm (1.02") of precipitation.Snowfall
In Liessies, France, snow does not fall in April through September.Daylight
In September, the average length of the day in Liessies is 12h and 37min.On the first day of September, sunrise is at 06:59 and sunset at 20:27. On the last day of the month, sunrise is at 07:43 and sunset at 19:23 CEST.
Sunshine
The average sunshine in September in Liessies, France, is 7.4h.UV index
The average daily maximum UV index in September in Liessies is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take precautions - Protection against sun damage is advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Liessies, France
- Average high temperature in September: 19.4°C
The warmest months (with the highest average high temperature) are July and August (22.7°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in September: 10.4°C
The months with the highest average low temperature are July and August (12.9°C).
The coldest month (with the lowest average low temperature) is January (0.7°C).
Average pressure in September
Liessies, 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 (1012.6mbar).
Average wind speed in September
Liessies, France
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Liessies, France
- Average humidity in September: 80%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in September
Liessies, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Liessies, France
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is March (12.8 days).
Average snowfall in September
Liessies, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (31mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Liessies, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Liessies, France
- Average daylight in September: 12h and 36min
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 24min
The months with the most sunshine are July and August (Average sunshine: 8h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in September
Liessies, France
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Liessies, 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
Liessies, France
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in September
Liessies, France
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (9km).
The month with the lowest visibility is September (8km).
