September weather forecastLanleff, France
September
Weather in September
September, the first month of the autumn in Lanleff, is still a refreshing month, with temperature in the range of an average high of 17.6°C (63.7°F) and an average low of 14.2°C (57.6°F).Temperature
Welcoming September, Lanleff notes an average high-temperature of a still refreshing 17.6°C (63.7°F), nearly consistent with August's 18.7°C (65.7°F). Registering an almost steady temperature, Lanleff's nights in September see an average low of 14.2°C (57.6°F).Humidity
The average relative humidity in September in Lanleff is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 24mm (0.94") of precipitation.Snowfall
In Lanleff, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 07:30 and sunset at 20:54. On the last day of September, sunrise is at 08:11 and sunset at 19:52 CEST.
Sunshine
In Lanleff, the average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September in Lanleff is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lanleff, France
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is August (18.7°C).
The month with the lowest average high temperature is February (9.3°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (6.3°C).
Average pressure in September
Lanleff, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is September (1018.1mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in September
Lanleff, France
- Average wind speed in September: 20.4km/h
The windiest month (with the highest average wind speed) is December (28.8km/h).
The calmest month (with the lowest average wind speed) is July (18km/h).
Average humidity in September
Lanleff, France
- Average humidity in September: 80%
The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is February (79%).
Average rainfall in September
Lanleff, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Lanleff, France
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is November (19.5 days).
The month with the least rainy days is September (11.6 days).
Average snowfall in September
Lanleff, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lanleff, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Lanleff, 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 24min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Lanleff, France
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is November (7.5 days).
Average UV index in September
Lanleff, France
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Lanleff, France
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Lanleff, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
