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

Entering September, the average high-temperature is recorded at a still hot 86.7°F (30.4°C), exhibiting a minimal shift from August's 89.2°F (31.8°C). During September, Houma's temperature averages to a moderately hot 73.4°F (23°C) at night.

Heat index

The average heat index in September is appraised at a torrid 100.4°F (38°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Houma, in September, it is raining for 15.1 days, with typically 1.34" (34mm) of accumulated precipitation. 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, the average length of the day in September 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 September, the average sunshine is 10.2h.

UV index

In Houma, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: During September, 6 as the daily maximum UV index converts into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

September temperatures vary between a high-temperature of 86.7°F (30.4°C) and a low-temperature of 73.4°F (23°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 100.4°F (38°C).

What is the average humidity in September?

In Houma, the average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 15.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated.

When it does not snow?

In Houma, snow does not fall in February through December.

How many hours of daylight does Houma have in September?

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

What time are sunrise and sunset in September in Houma?

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, sunrise is at 6:55 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Houma have in September?

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

What is the UV index intensity in September?

In Houma, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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).

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).

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).

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).

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).

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).

Houma, Louisiana, USA

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