September weather forecastLe Plessis-Hébert, France
September
Weather in September
September, the first month of the autumn in Le Plessis-Hébert, is also an agreeable month, with an average temperature fluctuating between 10.8°C (51.4°F) and 20.2°C (68.4°F).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a warm 23.3°C (73.9°F) in August to an agreeable 20.2°C (68.4°F). During September, Le Plessis-Hébert records a consistent average nighttime temperature of 10.8°C (51.4°F).Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 9.7 days and accumulates 19mm (0.75") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Le Plessis-Hébert, France, the average length of the day in September is 12h and 35min.On the first day of September in Le Plessis-Hébert, sunrise is at 07:11 and sunset at 20:36. On the last day of the month, sunrise is at 07:53 and sunset at 19:35 CEST.
Sunshine
The average sunshine in September in Le Plessis-Hébert, France, is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Undertake precautions - Guarding against sun damage is counselled. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Le Plessis-Hébert, France
- Average high temperature in September: 20.2°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 (6.3°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is August (13.2°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Le Plessis-Hébert, 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 (1012.9mbar).
Average wind speed in September
Le Plessis-Hébert, France
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in September
Le Plessis-Hébert, France
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Le Plessis-Hébert, France
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is June (48mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in September
Le Plessis-Hébert, France
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is January (14.8 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in September
Le Plessis-Hébert, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Le Plessis-Hébert, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Le Plessis-Hébert, 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 24min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Le Plessis-Hébert, France
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is September (17.8 days).
The month with the least sunshine days is January (11.6 days).
Average UV index in September
Le Plessis-Hébert, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Le Plessis-Hébert, France
- Average cloud cover in September: 41
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in September
Le Plessis-Hébert, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August, September, October and December (9km).
The months with the lowest visibility are January, May, June and November (8km).
