Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's warm 23.8°C (74.8°F) to an agreeable 20.3°C (68.5°F). Nightly temperatures in Longueil-Annel drop to an average low of 10.9°C (51.6°F) in September.Humidity
In Longueil-Annel, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 28mm (1.1") of precipitation.Snowfall
In Longueil-Annel, France, snow does not fall in April through October.Daylight
The average length of the day in September in Longueil-Annel is 12h and 36min.On the first day of September in Longueil-Annel, sunrise is at 07:05 and sunset at 20:31. On the last day of the month, sunrise is at 07:47 and sunset at 19:29 CEST.
Sunshine
In Longueil-Annel, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the average September temperature in Longueil-Annel?
What is the average humidity in September in Longueil-Annel?
What is the driest month in Longueil-Annel?
How much does it rain in Longueil-Annel in September?
When it does not snow in Longueil-Annel?
How many hours of daylight does Longueil-Annel have in September?
When are sunrise and sunset in September in Longueil-Annel?
How many hours of sunshine does Longueil-Annel have in September?
What is the UV index reading in September in Longueil-Annel?
Average temperature in September
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, France
- Average daylight in September: 12h and 4min
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 12min).
- Average sunshine in September: 7h and 4min
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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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
Longueil-Annel, 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).
Longueil-Annel, France
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