September weather forecast
Southwinds, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Southwinds, Louisiana, with an average temperature fluctuating between 87.8°F (31°C) and 67.8°F (19.9°C).

Temperature

Southwinds records an average high-temperature of a still tropical 87.8°F (31°C) in September, maintaining a close correlation with August's 92.5°F (33.6°C). In Southwinds, September nights cool down to an average of 67.8°F (19.9°C).

Heat index

The heat index value during September is computed to be a torrid 100.4°F (38°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 71%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:53 pm CDT.

Sunshine

In Southwinds, the average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

How hot is September?

An average high-temperature, in September, in Southwinds, is 87.8°F (31°C) and the average low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in September is computed to be 100.4°F (38°C).

What is the average humidity in September in Southwinds?

The average relative humidity in September is 71%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in September?

In Southwinds, in September, during 11.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Southwinds have in September?

The average day length in September is 12h and 22min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:43 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:53 pm CDT.

How many hours of sunshine does Southwinds have in September?

In September, the average sunshine duration is 9.6h.

How high is the UV index in September?

In Southwinds, Louisiana, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Southwinds, LA

Average temperature in September - Southwinds, LA
  • Average high temperature in September: 87.8°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in September: 67.8°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).

Average pressure in September
Southwinds, LA

Average pressure in September - Southwinds, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Southwinds, LA

Average wind speed in September - Southwinds, LA
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).

Average humidity in September
Southwinds, LA

Average humidity in September - Southwinds, LA
  • Average humidity in September: 71%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Southwinds, LA

Average rainfall in September - Southwinds, LA
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
Southwinds, LA

Average rainfall days in September - Southwinds, LA
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Southwinds, LA

Average snowfall in September - Southwinds, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Southwinds, LA

Average snowfall days in September - Southwinds, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Southwinds, LA

Average daylight in September / Average sunshine in September - Southwinds, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Southwinds, LA

Average sunshine days in September - Southwinds, LA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is February (13.2 days).

Average UV index in September
Southwinds, LA

Average UV index in September - Southwinds, LA
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Southwinds, LA

Average cloud cover in September - Southwinds, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and October (Cloud cover 28).

Average visibility in September
Southwinds, LA

Average visibility in September - Southwinds, LA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Southwinds, Louisiana, USA

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