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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 27.5°C (81.5°F) in August to a still warm 24.4°C (75.9°F). September in Le Haillan sees the temperature falling to a mean low of 13.8°C (56.8°F).Humidity
In Le Haillan, the average relative humidity in September is 70%.Rainfall
The month with the least rainfall in Le Haillan, France, is September, when the rain falls for 8.5 days and typically collects 15mm (0.59") of precipitation.Snowfall
January, April through November are months without snowfall.Daylight
In Le Haillan, France, the average length of the day in September is 12h and 31min.On the first day of September in Le Haillan, France, sunrise is at 07:25 and sunset at 20:39. On the last day of the month, sunrise is at 08:00 and sunset at 19:44 CEST.
Sunshine
In Le Haillan, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the temperature in September in Le Haillan?
What is the average humidity in September in Le Haillan?
What is the driest month in Le Haillan?
How many days does it rain in September in Le Haillan?
When it does not snow in Le Haillan?
How many hours of daylight does Le Haillan have in September?
When is the sunrise / sunset in September in Le Haillan?
How long on average sun shines in September in Le Haillan?
What is the UV index intensity in September in Le Haillan?
Average temperature in September
Le Haillan, France
- Average high temperature in September: 24.4°C
The warmest month (with the highest average high temperature) is August (27.5°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is February (4.1°C).
Average pressure in September
Le Haillan, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Le Haillan, France
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is March (11.9km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in September
Le Haillan, France
- Average humidity in September: 70%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Le Haillan, France
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is November (51mm).
The driest month (with the least rainfall) is September (15mm).
Average rainfall days in September
Le Haillan, France
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in September
Le Haillan, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (4mm).
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Le Haillan, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Le Haillan, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- 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 December (Average sunshine: 5h and 0min).
Average sunshine days in September
Le Haillan, France
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is September (19.6 days).
The months with the least sunshine days are May and June (13.8 days).
Average UV index in September
Le Haillan, France
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in September
Le Haillan, France
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Le Haillan, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Le Haillan, France
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