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 arrival of September signals a subtle shift in temperature, down from a pleasant 22.8°C (73°F) in August to a refreshing 19.5°C (67.1°F). During September, Sailly-Saillisel consistently records a temperature low averaging a fresh 11.2°C (52.2°F).Humidity
In September, the average relative humidity in Sailly-Saillisel is 77%.Rainfall
The month with the least rainfall in Sailly-Saillisel is September, when the rain falls for 11.8 days and typically collects 21mm (0.83") of precipitation.Snowfall
In Sailly-Saillisel, snow does not fall in April through October.Daylight
In September, the average length of the day in Sailly-Saillisel is 12h and 37min.On the first day of the month, sunrise is at 07:04 and sunset at 20:32. On the last day of September, in Sailly-Saillisel, sunrise is at 07:47 and sunset at 19:28 CEST.
Sunshine
The average sunshine in September is 7.3h.UV index
The average daily maximum UV index in September in Sailly-Saillisel is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are the temperatures in Sailly-Saillisel in September?
What is the average humidity in September in Sailly-Saillisel?
What is the driest month in Sailly-Saillisel?
How many days does it rain in September in Sailly-Saillisel?
When it does not snow in Sailly-Saillisel?
How many hours of daylight does Sailly-Saillisel have in September?
What time are sunrise and sunset in September in Sailly-Saillisel?
How long on average sun shines in September in Sailly-Saillisel?
How high is the UV index in September in Sailly-Saillisel?
Average temperature in September
Sailly-Saillisel, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.5°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in September
Sailly-Saillisel, France
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Sailly-Saillisel, France
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).
Average humidity in September
Sailly-Saillisel, France
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Sailly-Saillisel, France
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Sailly-Saillisel, France
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is December (15.8 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in September
Sailly-Saillisel, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Sailly-Saillisel, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Sailly-Saillisel, 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: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Sailly-Saillisel, France
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is April (16.6 days).
The month with the least sunshine days is December (11.5 days).
Average UV index in September
Sailly-Saillisel, 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
Sailly-Saillisel, France
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Sailly-Saillisel, 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).
Sailly-Saillisel, France
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