September weather forecast
Dulac, LA

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Weather in September

September, the first month of the autumn in Dulac, is still a tropical month, with an average temperature fluctuating between 74.3°F (23.5°C) and 86.4°F (30.2°C).

Temperature

The dawn of September sees an average high-temperature of a still tropical 86.4°F (30.2°C), subtly contrasting with August's 88.9°F (31.6°C). Dulac, during the nights of September, experiences an average temperature drop to a moderately hot 74.3°F (23.5°C).

Heat index

During September, the heat index is estimated at a torrid 98.6°F (37°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. 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 are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in September in Dulac is 76%.

Rainfall

In September, in Dulac, the rain falls for 12.8 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 117.2 rainfall days, and 10.98" (279mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:49 pm CDT.

Sunshine

In Dulac, the average sunshine in September is 10.2h.

UV index

In September, the average daily maximum UV index 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: In September, the average maximum UV index of 6 translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

Is it hot in Dulac during September?

In September, in Dulac, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 74.3°F (23.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is estimated at 98.6°F (37°C).

What is the average humidity in September in Dulac?

The average relative humidity in September in Dulac is 76%.

How many days does it rain in September in Dulac?

In Dulac, Louisiana, in September, during 12.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How many hours of daylight does Dulac have in September?

In September, the average day length in Dulac, Louisiana, is 12h and 20min.

What time are sunrise and sunset in September in Dulac?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:24 pm. On the last day of the month, in Dulac, sunrise is at 6:55 am and sunset at 6:49 pm CDT.

How long on average sun shines in September in Dulac?

The average sunshine duration in September is 10.2h.

What is the UV index reading in September in Dulac?

In Dulac, Louisiana, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Dulac, LA

Average temperature in September - Dulac, LA
  • Average high temperature in September: 86.4°F

The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (61.3°F).

  • Average low temperature in September: 74.3°F

The months with the highest average low temperature are July and August (77.5°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

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Average pressure in September
Dulac, LA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in September
Dulac, LA

Average wind speed in September - Dulac, LA
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Dulac, LA

Average humidity in September - Dulac, LA
  • Average humidity in September: 76%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Dulac, LA

Average rainfall in September - Dulac, LA
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is March (0.35").

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Average rainfall days in September
Dulac, LA

Average rainfall days in September - Dulac, LA
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is August (17.6 days).
The month with the least rainy days is November (6 days).

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

Average daylight in September / Average sunshine in September - Dulac, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Dulac, LA

Average sunshine days in September - Dulac, LA
  • Average sunshine days in September: 12.4 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is August (9.3 days).

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Average UV index in September
Dulac, LA

Average UV index in September - Dulac, 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 4).

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Average cloud cover in September
Dulac, LA

Average cloud cover in September - Dulac, LA
  • Average cloud cover in September: 26

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in September
Dulac, LA

Average visibility in September - Dulac, 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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Dulac, Louisiana, USA

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