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
September indicates a minor shift in the average high-temperature, from August's moderately hot 24.5°C (76.1°F) to a pleasant 20.9°C (69.6°F). Le Mesnil-le-Roi experiences an average low-temperature of 11.6°C (52.9°F) in the month of September.Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Le Mesnil-le-Roi is September, when the rain falls for 9 days and typically collects 14mm (0.55") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 35min.On the first day of September, sunrise is at 07:08 and sunset at 20:33. On the last day of the month, sunrise is at 07:50 and sunset at 19:32 CEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
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 ordinary individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Le Mesnil-le-Roi?
What is the average humidity in September in Le Mesnil-le-Roi?
What is the driest month in Le Mesnil-le-Roi?
How many days does it rain in September in Le Mesnil-le-Roi?
When it does not snow in Le Mesnil-le-Roi?
What is the average length of the day in September in Le Mesnil-le-Roi?
What time are sunrise and sunset in September in Le Mesnil-le-Roi?
How many hours of sunshine does Le Mesnil-le-Roi have in September?
What is the UV index reading in September in Le Mesnil-le-Roi?
Average temperature in September
Le Mesnil-le-Roi, France
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (1.7°C).
Average pressure in September
Le Mesnil-le-Roi, 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 (1013.3mbar).
Average wind speed in September
Le Mesnil-le-Roi, France
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10.2km/h).
Average humidity in September
Le Mesnil-le-Roi, 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
Le Mesnil-le-Roi, France
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Le Mesnil-le-Roi, France
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is September (9 days).
Average snowfall in September
Le Mesnil-le-Roi, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Le Mesnil-le-Roi, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 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
Le Mesnil-le-Roi, France
- Average daylight in September: 12h and 4min
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 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Le Mesnil-le-Roi, France
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Le Mesnil-le-Roi, France
- Average UV index in September: 4
The months with the highest UV index are May, 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
Le Mesnil-le-Roi, France
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in September
Le Mesnil-le-Roi, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Le Mesnil-le-Roi, France
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