September weather forecast
Bayou Crab, LA

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Weather in September

September, the first month of the autumn in Bayou Crab, is still a tropical month, with temperature in the range of an average low of 70.9°F (21.6°C) and an average high of 86.9°F (30.5°C).

Temperature

The arrival of September sees an average high-temperature of a still tropical 86.9°F (30.5°C), hardly diverging from August's 90°F (32.2°C). During September, the temperature in Bayou Crab, Louisiana, is averaged to a low of 70.9°F (21.6°C) at night.

Heat index

The heat index value during September is computed to be a sweltering 102.2°F (39°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The months with the highest humidity are February, July through September and December, with an average relative humidity of 80%.

Rainfall

In Bayou Crab, in September, it is raining for 17.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, in Bayou Crab, there are 170.8 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine in Bayou Crab is 9.9h.

UV index

The average daily maximum UV index in September in Bayou Crab is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

How hot is it in Bayou Crab in September?

In Bayou Crab, in September, the average high-temperature is 86.9°F (30.5°C), and the average low-temperature is 70.9°F (21.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is computed to be 102.2°F (39°C).

What are the most humid months in Bayou Crab?

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

What is the average humidity in September in Bayou Crab?

In Bayou Crab, the average relative humidity in September is 80%.

How many days does it rain in September in Bayou Crab?

In Bayou Crab, Louisiana, in September, it is raining for 17.5 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow in Bayou Crab?

February through November are months without snowfall in Bayou Crab, Louisiana.

What is the average length of the day in September in Bayou Crab?

In Bayou Crab, the average day length in September is 12h and 20min.

When are sunrise and sunset in September in Bayou Crab?

On the first day of September in Bayou Crab, Louisiana, 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 Bayou Crab?

In Bayou Crab, Louisiana, the average sunshine duration in September is 9.9h.

What is the UV index reading in September in Bayou Crab?

In September, the average daily maximum UV index in Bayou Crab is 6. A UV Index estimate 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
Bayou Crab, LA

Average temperature in September - Bayou Crab, 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).

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Average pressure in September
Bayou Crab, LA

Average pressure in September - Bayou Crab, 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).

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Average wind speed in September
Bayou Crab, LA

Average wind speed in September - Bayou Crab, 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).

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Average humidity in September
Bayou Crab, LA

Average humidity in September - Bayou Crab, 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%).

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Average rainfall in September
Bayou Crab, LA

Average rainfall in September - Bayou Crab, 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").

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Average rainfall days in September
Bayou Crab, LA

Average rainfall days in September - Bayou Crab, 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).

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Average snowfall in September
Bayou Crab, LA

Average snowfall in September - Bayou Crab, 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").

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Average snowfall days in September
Bayou Crab, LA

Average snowfall days in September - Bayou Crab, 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).

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Average daylight in September /
Average sunshine in September
Bayou Crab, LA

Average daylight in September / Average sunshine in September - Bayou Crab, 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).

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Average sunshine days in September
Bayou Crab, LA

Average sunshine days in September - Bayou Crab, 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).

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Average UV index in September
Bayou Crab, LA

Average UV index in September - Bayou Crab, 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).

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Average cloud cover in September
Bayou Crab, LA

Average cloud cover in September - Bayou Crab, 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).

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Average visibility in September
Bayou Crab, LA

Average visibility in September - Bayou Crab, 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).

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Bayou Crab, Louisiana, USA

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