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 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
The commencement of September records an average high-temperature of a still hot 87.6°F (30.9°C), barely varying from August's 91.2°F (32.9°C). Grand Chenier experiences an average low-temperature of 72.3°F (22.4°C) in month of September.Heat index
In September, the heat index is computed to be a torrid 102.2°F (39°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Grand Chenier, in September, during 15.7 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 168 rainfall days, and 34.96" (888mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:49 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Deflect overexposure. Sun protection is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Grand Chenier?
Average temperature in September
Grand Chenier, LA
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 72.3°F
The month with the highest average low temperature is July (77.2°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in September
Grand Chenier, LA
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in September
Grand Chenier, LA
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Grand Chenier, LA
- Average humidity in September: 76%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Grand Chenier, LA
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is August (5").
The driest month (with the least rainfall) is April (2.09").
Average rainfall days in September
Grand Chenier, LA
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Grand Chenier, LA
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Grand Chenier, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Grand Chenier, 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: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Grand Chenier, LA
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in September
Grand Chenier, LA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Grand Chenier, LA
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in September
Grand Chenier, 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).
Grand Chenier, Louisiana, USA
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