September weather forecast
Abbeville, LA

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Weather in September

September sees the start of the transition from summer to fall in Abbeville. Despite this, the aftermath of the sultry summer continues to influence the weather. However, a subtle reduction in temperatures to 86°F (30°C) hints at the approaching fall, breaking the high-temperature record seen in the last two months. As the month progresses, the days get gradually cooler, heralding the incoming autumn season. In essence, September marks the turning point from the scorching summer temperatures to the shorter, cooler days of fall.

Temperature

The shift into September reveals an average high-temperature of a still hot 86°F (30°C), closely mirroring August's climate. The mean low-temperature during September nights is an agreeable 71.8°F (22.1°C).

Heat index

Throughout September, the heat index is calculated to be a torrid 98.6°F (37°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In September, the average relative humidity in Abbeville is 79%.

Rainfall

In Abbeville, in September, it is raining for 15.5 days, with typically 1.61" (41mm) of accumulated precipitation. In Abbeville, during the entire year, the rain falls for 148.8 days and collects up to 22.24" (565mm) of precipitation.

Snowfall

In Abbeville, snow does not fall in February through November.

Daylight

The average length of the day in September in Abbeville is 12h and 20min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

Sunshine

In September, the average sunshine in Abbeville is 10h.

UV index

In Abbeville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

How hot is September in Abbeville?

The average high-temperature, in September, in Abbeville, is 86°F (30°C), while the average low-temperature is 71.8°F (22.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 98.6°F (37°C).

What is the average humidity in September in Abbeville?

The average relative humidity in September in Abbeville is 79%.

How many days does it rain in September in Abbeville?

In Abbeville, in September, it is raining for 15.5 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in Abbeville?

In Abbeville, snow does not fall in February through November.

What is the average length of the day in September in Abbeville?

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

What time are sunrise and sunset in September in Abbeville?

In September, on the first day of the month, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of the month, in Abbeville, sunrise is at 7:01 am and sunset at 6:54 pm CDT.

How many hours of sunshine does Abbeville have in September?

In September, the average sunshine duration is 10h.

What is the UV index intensity in September in Abbeville?

In Abbeville, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Abbeville, LA

Average temperature in September - Abbeville, LA
  • Average high temperature in September: 86°F

The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (59.5°F).

  • Average low temperature in September: 71.8°F

The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).

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Average pressure in September
Abbeville, LA

Average pressure in September - Abbeville, LA
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

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Average wind speed in September
Abbeville, LA

Average wind speed in September - Abbeville, LA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in September
Abbeville, LA

Average humidity in September - Abbeville, LA
  • Average humidity in September: 79%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Abbeville, LA

Average rainfall in September - Abbeville, LA
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (1.18").

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Average rainfall days in September
Abbeville, LA

Average rainfall days in September - Abbeville, LA
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in September
Abbeville, LA

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

The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Abbeville, LA

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

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

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Abbeville, LA

Average sunshine days in September - Abbeville, LA
  • Average sunshine days in September: 12 days

The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is August (9.3 days).

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Average UV index in September
Abbeville, LA

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

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

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Average cloud cover in September
Abbeville, LA

Average cloud cover in September - Abbeville, LA
  • Average cloud cover in September: 27

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in September
Abbeville, LA

Average visibility in September - Abbeville, 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).

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Abbeville, Louisiana, USA

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