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
September
Weather in September
Temperature
The advent of September reveals an average high-temperature of a still refreshing 17.9°C (64.2°F), showing minimal difference from the prior month. A consistent average low-temperature of 13.9°C (57°F), with a minor variance from the daytime highs, is noted in Smermesnil during the nights of September.Humidity
With an average relative humidity of 79%, September is the least humid month.Rainfall
In Smermesnil, during September, the rain falls for 13.3 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, in Smermesnil, there are 177.4 rainfall days, and 428mm (16.85") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Smermesnil is 12h and 37min.On the first day of September in Smermesnil, sunrise is at 07:10 and sunset at 20:37. On the last day of the month, sunrise is at 07:53 and sunset at 19:34 CEST.
Sunshine
In Smermesnil, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Smermesnil in September?
What is the least humid month in Smermesnil?
What is the average humidity in September in Smermesnil?
How many days does it rain in September in Smermesnil?
When it does not snow in Smermesnil?
What is the average length of the day in September in Smermesnil?
When is the sunrise / sunset in September in Smermesnil?
How many hours of sunshine does Smermesnil have in September?
What is the UV index reading in September in Smermesnil?
Average temperature in September
Smermesnil, France
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in September
Smermesnil, France
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Smermesnil, France
- Average wind speed in September: 19.2km/h
The windiest month (with the highest average wind speed) is December (27.5km/h).
The calmest month (with the lowest average wind speed) is July (17.3km/h).
Average humidity in September
Smermesnil, France
- Average humidity in September: 79%
The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is September (79%).
Average rainfall in September
Smermesnil, France
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Smermesnil, France
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is October (16.7 days).
The month with the least rainy days is April (12.4 days).
Average snowfall in September
Smermesnil, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Smermesnil, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.9 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
Smermesnil, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in September
Smermesnil, France
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in September
Smermesnil, 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
Smermesnil, France
- Average cloud cover in September: 40
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April, July and August (Cloud cover 39).
Average visibility in September
Smermesnil, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
