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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 28.4°C (83.1°F) in August to a still warm 24.7°C (76.5°F). During September, the temperature tends to dip to an average of 13.7°C (56.7°F) at night.Humidity
In September, the average relative humidity in Saint-Lys is 67%.Rainfall
September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 26mm (1.02") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Saint-Lys is 12h and 30min.On the first day of the month, sunrise is at 07:19 and sunset at 20:30. On the last day of September, sunrise is at 07:52 and sunset at 19:38 CEST.
Sunshine
The average sunshine in September in Saint-Lys is 8.5h.UV index
In Saint-Lys, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Saint-Lys?
What is the average humidity in September in Saint-Lys?
What is the driest month in Saint-Lys?
How many days does it rain in September in Saint-Lys?
When it does not snow in Saint-Lys?
What is the average length of the day in September in Saint-Lys?
When is the sunrise / sunset in September in Saint-Lys?
How long on average sun shines in September in Saint-Lys?
What is the UV index reading in September in Saint-Lys?
Average temperature in September
Saint-Lys, France
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (28.4°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (2.7°C).
Average pressure in September
Saint-Lys, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Saint-Lys, France
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is March (13.7km/h).
The calmest months (with the lowest average wind speed) are August and September (9.7km/h).
Average humidity in September
Saint-Lys, France
- Average humidity in September: 67%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Saint-Lys, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is May (61mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Saint-Lys, France
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is April (16.8 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in September
Saint-Lys, 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
Saint-Lys, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Saint-Lys, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Saint-Lys, France
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Saint-Lys, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Saint-Lys, France
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Saint-Lys, France
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (9km).
