September weather forecast
Attakapas Landing, LA

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Weather in September

The first month of the autumn, September, is also a hot month in Attakapas Landing, Louisiana, with an average temperature ranging between max 86.9°F (30.5°C) and min 70.9°F (21.6°C).

Temperature

Shifting into September, Attakapas Landing records an average high-temperature of a still hot 86.9°F (30.5°C), presenting minor fluctuations compared to the previous month. September nights are marked by an average low-temperature of 70.9°F (21.6°C).

Heat index

The heat index value for September is computed to be a sweltering 102.2°F (39°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

February, July through September and December, with an average relative humidity of 80%, are the most humid months in Attakapas Landing.

Rainfall

In September, the rain falls for 17.5 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 170.8 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

Snowfall

In Attakapas Landing, snow does not fall in February through November.

Daylight

In Attakapas Landing, 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

In September, the average sunshine is 9.9h.

UV index

In Attakapas Landing, Louisiana, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during September leads to these instructions:
Fend off overexposure. Sun protection is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Aug 31, 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 Attakapas Landing, is 86.9°F (30.5°C), while the average low-temperature is 70.9°F (21.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 102.2°F (39°C).

What is the most humid month?

February, July through September and December, with an average relative humidity of 80%, are most humid months.

What is the average humidity in September?

In September, the average relative humidity is 80%.

How many days does it rain in September?

In Attakapas Landing, Louisiana, in September, during 17.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

When it does not snow?

February through November are months without snowfall in Attakapas Landing.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, 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 many hours of sunshine does Attakapas Landing have in September?

In September, the average sunshine duration is 9.9h.

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 health vulnerability from unprotected exposure to UV radiation.
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
Attakapas Landing, LA

Average temperature in September - Attakapas Landing, LA
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in September: 70.9°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).

Average pressure in September
Attakapas Landing, LA

Average pressure in September - Attakapas Landing, LA
  • Average pressure in September: 29.97"Hg

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

Average wind speed in September
Attakapas Landing, LA

Average wind speed in September - Attakapas Landing, LA
  • Average wind speed in September: 5.1mph

The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in September
Attakapas Landing, LA

Average humidity in September - Attakapas Landing, LA
  • Average humidity in September: 80%

The months with the highest relative humidity are February, July, August, September and December (80%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Attakapas Landing, LA

Average rainfall in September - Attakapas Landing, LA
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is July (4.76").
The driest month (with the least rainfall) is November (1.3").

Average rainfall days in September
Attakapas Landing, LA

Average rainfall days in September - Attakapas Landing, LA
  • Average rainfall days in September: 17.5 days

The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September
Attakapas Landing, LA

Average snowfall in September - Attakapas Landing, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Attakapas Landing, LA

Average snowfall days in September - Attakapas Landing, 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
Attakapas Landing, LA

Average daylight in September / Average sunshine in September - Attakapas Landing, 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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Attakapas Landing, LA

Average sunshine days in September - Attakapas Landing, LA
  • Average sunshine days in September: 10.1 days

The month with the most sunshine days is November (20.2 days).
The months with the least sunshine days are July and August (6.4 days).

Average UV index in September
Attakapas Landing, LA

Average UV index in September - Attakapas Landing, LA
  • Average UV index in September: 6

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

Average cloud cover in September
Attakapas Landing, LA

Average cloud cover in September - Attakapas Landing, LA
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in September
Attakapas Landing, LA

Average visibility in September - Attakapas Landing, LA
  • Average visibility in September: 5mi

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

Attakapas Landing, Louisiana, USA

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