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 23.8°C (74.8°F) to an agreeable 20.5°C (68.9°F). Throughout September, the average low-temperature in Le Mesnil-en-Thelle records at a fresh 11.3°C (52.3°F).Humidity
In Le Mesnil-en-Thelle, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall in Le Mesnil-en-Thelle is September, when the rain falls for 12 days and typically collects 26mm (1.02") of precipitation.Snowfall
In Le Mesnil-en-Thelle, snow does not fall in April through October.Daylight
In Le Mesnil-en-Thelle, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:07 and sunset at 20:33. On the last day of September, in Le Mesnil-en-Thelle, sunrise is at 07:49 and sunset at 19:31 CEST.
Sunshine
In September, the average sunshine is 7.6h.UV index
In September, the average daily maximum UV index in Le Mesnil-en-Thelle is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during September translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the average September temperature in Le Mesnil-en-Thelle?
What is the average humidity in September in Le Mesnil-en-Thelle?
What is the driest month in Le Mesnil-en-Thelle?
How many days does it rain in September in Le Mesnil-en-Thelle?
When it does not snow in Le Mesnil-en-Thelle?
What is the average length of the day in September in Le Mesnil-en-Thelle?
When is the sunrise / sunset in September in Le Mesnil-en-Thelle?
How long on average sun shines in September in Le Mesnil-en-Thelle?
What is the UV index intensity in September in Le Mesnil-en-Thelle?
Average temperature in September
Le Mesnil-en-Thelle, France
- Average high temperature in September: 20.5°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: 11.3°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Le Mesnil-en-Thelle, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in September
Le Mesnil-en-Thelle, France
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Le Mesnil-en-Thelle, France
- Average humidity in September: 75%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Le Mesnil-en-Thelle, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (62mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Le Mesnil-en-Thelle, France
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is September (12 days).
Average snowfall in September
Le Mesnil-en-Thelle, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Le Mesnil-en-Thelle, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 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-en-Thelle, 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 18min).
- 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
Le Mesnil-en-Thelle, France
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Le Mesnil-en-Thelle, 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
Le Mesnil-en-Thelle, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Le Mesnil-en-Thelle, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
Le Mesnil-en-Thelle, France
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