Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Houma marks the onset of September with an average high-temperature of a still tropical 86.7°F (30.4°C), a subtle shift from August's 89.2°F (31.8°C). During the month of September, an average temperature of 73.4°F (23°C) is noted during the nights.Heat index
The heat index in September is calculated to be a very hot 100.4°F (38°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance 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.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In Houma, the average relative humidity in September 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
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
The average sunshine in September is 10.2h.UV index
In Houma, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September in Houma?
When it does not snow in Houma?
How many hours of daylight does Houma have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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