September weather forecast
Greenwell Acres East, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Greenwell Acres East, Louisiana, with an average temperature varying between 88.3°F (31.3°C) and 70°F (21.1°C).

Temperature

Greenwell Acres East records an average high-temperature of a still hot 88.3°F (31.3°C) in September, closely mirroring the climate of the previous month. Greenwell Acres East's temperature tends to fall to an average low of 70°F (21.1°C) during the nights of September.

Heat index

The average heat index in September is calculated to be an extremely hot 105.8°F (41°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Greenwell Acres East, the average relative humidity in September is 78%.

Rainfall

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index 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 maximum UV index of 6 suggests these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

How hot is September?

In September, the average high-temperature and low-temperature are 88.3°F (31.3°C) and 70°F (21.1°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 105.8°F (41°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

March and September are months with the least rain when the rain falls for 9.7 days and typically aggregates up to 0.28" (7mm) of rain.

How many days does it rain in September in Greenwell Acres East?

In Greenwell Acres East, in September, it is raining for 9.7 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow?

In Greenwell Acres East, snow does not fall in February through November.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.

How long on average sun shines in September?

In Greenwell Acres East, the average sunshine duration in September is 9.5h.

What is the UV index reading in September in Greenwell Acres East?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Greenwell Acres East, LA

Average temperature in September - Greenwell Acres East, LA
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in September
Greenwell Acres East, LA

Average pressure in September - Greenwell Acres East, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Greenwell Acres East, LA

Average wind speed in September - Greenwell Acres East, LA
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

Average humidity in September
Greenwell Acres East, LA

Average humidity in September - Greenwell Acres East, LA
  • Average humidity in September: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Greenwell Acres East, LA

Average rainfall in September - Greenwell Acres East, LA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is July (1.1").
The driest months (with the least rainfall) are March and September (0.28").

Average rainfall days in September
Greenwell Acres East, LA

Average rainfall days in September - Greenwell Acres East, LA
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is November (4.6 days).

Average snowfall days in September
Greenwell Acres East, LA

Average snowfall days in September - Greenwell Acres East, LA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Greenwell Acres East, LA

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Greenwell Acres East, LA

Average sunshine days in September - Greenwell Acres East, LA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (24.1 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in September
Greenwell Acres East, LA

Average UV index in September - Greenwell Acres East, LA
  • Average UV index in September: 6

The months with the highest UV index are May, 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
Greenwell Acres East, LA

Average cloud cover in September - Greenwell Acres East, LA
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Greenwell Acres East, LA

Average visibility in September - Greenwell Acres East, LA
  • Average visibility in September: 5mi

The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).

Greenwell Acres East, Louisiana, USA

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