September weather forecast
Houma, LA

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Weather in September

September marks the onset of autumn in Houma, with a drop in temperature to 86.7°F (30.4°C). The humidity levels recede, making the weather more comfortable than the previous months. The number of rainfall days is still relatively high, signifying the gradual transition from summer to the autumn rainfall pattern. The city starts showing signs of Autumn, with leaves turning their color. September paints Houma in picturesque hues, making it an excellent time for photography enthusiasts.

Temperature

The commencement of September brings an average high-temperature of a still tropical 86.7°F (30.4°C), marking an inconsequential divergence from August. Houma reports a consistent average low-temperature of 73.4°F (23°C) throughout September nights.

Heat index

During September, the heat index is computed to be a very hot 100.4°F (38°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in September in Houma is 77%.

Rainfall

In September, the rain falls for 15.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 142.2 rainfall days, and 18.86" (479mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

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

Sunshine

In September, the average sunshine is 10.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

Is it hot in Houma during September?

The average high-temperature and low-temperature in Houma, Louisiana, during September are 86.7°F (30.4°C) and 73.4°F (23°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 100.4°F (38°C).

What is the average humidity in September in Houma?

The average relative humidity in September in Houma, Louisiana, is 77%.

How much does it rain in Houma in September?

In Houma, Louisiana, in September, it is raining for 15.1 days, with typically 1.34" (34mm) of accumulated precipitation.

When it does not snow in Houma?

February through December are months without snowfall in Houma, Louisiana.

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

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

When is the sunrise / sunset in September in Houma?

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

How long on average sun shines in September in Houma?

In Houma, the average sunshine duration in September is 10.2h.

What is the UV index reading in September in Houma?

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

Average temperature in September
Houma, LA

Average temperature in September - Houma, LA
  • Average high temperature in September: 86.7°F

The warmest months (with the highest average high temperature) are July and August (89.2°F).
The month with the lowest average high temperature is January (61.3°F).

  • Average low temperature in September: 73.4°F

The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).

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Average pressure in September
Houma, LA

Average pressure in September - Houma, 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, August and September (29.97"Hg).

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Average wind speed in September
Houma, LA

Average wind speed in September - Houma, LA
  • Average wind speed in September: 5.9mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Houma, LA

Average humidity in September - Houma, LA
  • Average humidity in September: 77%

The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are October and November (74%).

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Average rainfall in September
Houma, LA

Average rainfall in September - Houma, LA
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is July (3.78").
The driest month (with the least rainfall) is March (0.71").

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Average rainfall days in September
Houma, LA

Average rainfall days in September - Houma, LA
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is November (6.2 days).

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Average snowfall days in September
Houma, LA

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

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Houma, 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
Houma, LA

Average sunshine days in September - Houma, LA
  • Average sunshine days in September: 12.2 days

The month with the most sunshine days is November (22.2 days).
The months with the least sunshine days are July and August (8.5 days).

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Average UV index in September
Houma, LA

Average UV index in September - Houma, 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
Houma, LA

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

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in September
Houma, LA

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

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