September weather forecastMontegut, LA
September
Weather in September
The first month of the autumn, September, is also a hot month in Montegut, Louisiana, with an average temperature fluctuating between 74.3°F (23.5°C) and 86.4°F (30.2°C).Temperature
Montegut registers an average high-temperature of a still hot 86.4°F (30.2°C) at the commencement of September, closely related to the preceding month. Montegut in September anticipates an average nighttime temperature of 74.3°F (23.5°C).Heat index
For most parts of September, the heat index is computed to be a very hot 98.6°F (37°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in September is 76%.Rainfall
In Montegut, in September, during 12.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 117.2 rainfall days, and 10.98" (279mm) of precipitation is accumulated.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 7:23 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:48 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montegut, 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).
Average pressure in September
Montegut, 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).
Average wind speed in September
Montegut, 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).
Average humidity in September
Montegut, 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%).
Average rainfall in September
Montegut, 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").
Average rainfall days in September
Montegut, 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).
Average daylight in September /
Average sunshine in September
Montegut, LA
- Average daylight in September: 12h and 18min
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 12min
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
Montegut, 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).
Average UV index in September
Montegut, 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
Montegut, 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).
Average visibility in September
Montegut, 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).





