September weather forecast
Green Gables, LA

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Weather in September

September, the first month of the autumn in Green Gables, is still a hot month, with an average temperature varying between 68°F (20°C) and 87.8°F (31°C).

Temperature

As Green Gables transitions from August to September, the average high-temperatures adjust to a still tropical 87.8°F (31°C), nearly the same as the previous 92.5°F (33.6°C). During the month of September, the temperature generally drops to a low average of 68°F (20°C).

Heat index

The average heat index in September is estimated at a scorching 104°F (40°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. 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. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 14.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 152.3 rainfall days, and 23.66" (601mm) of precipitation is accumulated.

Snowfall

In Green Gables, snow does not fall in April through November.

Daylight

The average length of the day in September in Green Gables is 12h and 21min.
On the first day of September, sunrise is at 6:45 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:55 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature, in September, in Green Gables, is 87.8°F (31°C), while the average low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In September, the rain falls for 14.9 days. Throughout September, 2.01" (51mm) of precipitation is accumulated.

When it does not snow?

In Green Gables, snow does not fall in April through November.

How many hours of daylight does Green Gables have in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:45 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:55 pm CDT.

How many hours of sunshine does Green Gables have in September?

The average sunshine duration in September in Green Gables, Louisiana, is 9.4h.

What is the UV index reading in September?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from 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
Green Gables, LA

Average temperature in September - Green Gables, 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 (56.1°F).

  • Average low temperature in September: 68°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

Average pressure in September
Green Gables, LA

Average pressure in September - Green Gables, LA
  • Average pressure in September: 29.97"Hg

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

Average wind speed in September
Green Gables, LA

Average wind speed in September - Green Gables, LA
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September
Green Gables, LA

Average humidity in September - Green Gables, LA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Green Gables, LA

Average rainfall in September - Green Gables, LA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is November (1.22").

Average rainfall days in September
Green Gables, LA

Average rainfall days in September - Green Gables, LA
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Green Gables, LA

Average snowfall in September - Green Gables, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Green Gables, LA

Average snowfall days in September - Green Gables, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.7 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
Green Gables, LA

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

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

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Green Gables, LA

Average sunshine days in September - Green Gables, LA
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is August (10.1 days).

Average UV index in September
Green Gables, LA

Average UV index in September - Green Gables, 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
Green Gables, LA

Average cloud cover in September - Green Gables, LA
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Green Gables, LA

Average visibility in September - Green Gables, LA
  • Average visibility in September: 5mi

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

Green Gables, Louisiana, USA

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