September weather forecastPlesnoy, France
September
Weather in September
September, the first month of the autumn in Plesnoy, is still a comfortable month, with temperature in the range of an average high of 19.5°C (67.1°F) and an average low of 9.8°C (49.6°F).Temperature
September is characterized by a mild reduction in the average high-temperature, from a moderately hot 23.5°C (74.3°F) in August to an enjoyable 19.5°C (67.1°F). The average temperature during September nights is registered at a chilly 9.8°C (49.6°F).Humidity
The average relative humidity in September in Plesnoy is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 43mm (1.69") of precipitation.Snowfall
June through September are months without snowfall in Plesnoy.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 06:56 and sunset at 20:18. On the last day of the month, sunrise is at 07:36 and sunset at 19:19 CEST.
Sunshine
In September, the average sunshine in Plesnoy is 8.1h.UV index
The average daily maximum UV index in September in Plesnoy is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Take necessary precautions - Defending against sun damage is advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Plesnoy, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (3.9°C).
- Average low temperature in September: 9.8°C
The months with the highest average low temperature are July and August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).
Average pressure in September
Plesnoy, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Plesnoy, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.2km/h).
Average humidity in September
Plesnoy, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Plesnoy, France
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is June (88mm).
The driest month (with the least rainfall) is September (43mm).
Average rainfall days in September
Plesnoy, France
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is June (20.5 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in September
Plesnoy, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (82mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Plesnoy, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plesnoy, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Plesnoy, France
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is June (6.8 days).
Average UV index in September
Plesnoy, 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
Plesnoy, France
- Average cloud cover in September: 37
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Plesnoy, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, July and August (9km).
The months with the lowest visibility are January, May, June, September, October, November and December (8km).
