September weather forecastLognes, France
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Lognes, France, with an average temperature fluctuating between 20.7°C (69.3°F) and 11.7°C (53.1°F).Temperature
The advent of September brings a subtle shift in temperature, with the average high moving from a warm 24.4°C (75.9°F) in August to a pleasant 20.7°C (69.3°F). In September, Lognes encounters an average low-temperature of 11.7°C (53.1°F) during the night.Humidity
In September, the average relative humidity is 73%.Rainfall
The month with the least rainfall in Lognes is September, when the rain falls for 12.2 days and typically collects 26mm (1.02") of precipitation.Snowfall
In Lognes, snow does not fall in April through October.Daylight
The average length of the day in September in Lognes is 12h and 35min.On the first day of the month, sunrise is at 07:07 and sunset at 20:31. On the last day of September, sunrise is at 07:48 and sunset at 19:30 CEST.
Sunshine
In September, the average sunshine in Lognes is 7.7h.UV index
The average daily maximum UV index in September in Lognes is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lognes, France
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Lognes, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in September
Lognes, France
- Average wind speed in September: 10.4km/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 (10km/h).
Average humidity in September
Lognes, 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 (69%).
Average rainfall in September
Lognes, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Lognes, France
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Lognes, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (30mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Lognes, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 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
Lognes, 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 month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Lognes, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Lognes, 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
Lognes, France
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Lognes, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
