September weather forecastLongpont, France
September
Weather in September
September, the first month of the autumn in Longpont, is also an agreeable month, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 20.3°C (68.5°F).Temperature
September heralds a minor drop in average high-temperature, sliding from August's moderately hot 23.8°C (74.8°F) to a pleasant 20.3°C (68.5°F). Throughout September, the average low-temperature dips to a fresh 10.9°C (51.6°F).Humidity
In Longpont, France, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall in Longpont, France. Rain falls for 13 days and accumulates 28mm (1.1") of precipitation.Snowfall
In Longpont, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 36min.On the first day of September in Longpont, sunrise is at 07:04 and sunset at 20:29. On the last day of the month, sunrise is at 07:46 and sunset at 19:27 CEST.
Sunshine
The average sunshine in September in Longpont is 7.6h.UV index
In Longpont, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Longpont, France
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).
Average pressure in September
Longpont, France
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in September
Longpont, France
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Longpont, France
- Average humidity in September: 76%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Longpont, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Longpont, France
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is September (13 days).
Average snowfall in September
Longpont, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Longpont, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Longpont, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Longpont, France
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Longpont, 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
Longpont, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Longpont, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
