September weather forecastCoushatta, LA
September
Weather in September
September brings a welcome cooling in Coushatta as the transition to autumn begins. Compared to the heat of August, temperatures during September drop to a comparatively comfortable average high of 88.9°F (31.6°C). Much like August, rain falls on approximately 12 days, while relative humidity remains fairly steady. As the temperature and daylight hours drop, the weather gradually moves from summery to autumn-like. This transition offers relief from the protracted summer heat.Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from a very hot 95°F (35°C) in August to a hot 88.9°F (31.6°C). In Coushatta, in September, the average low-temperature is a comfortable 67.8°F (19.9°C).Heat index
The heat index value for September is computed to be a blisteringly hot 104°F (40°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in September is 72%.Rainfall
In Coushatta, in September, it is raining for 11.7 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 152.6 rainfall days, and 37.01" (940mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coushatta, LA
- Average high temperature in September: 88.9°F
The warmest months (with the highest average high temperature) are July and August (95°F).
The month with the lowest average high temperature is January (55.4°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Coushatta, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Coushatta, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Coushatta, LA
- Average humidity in September: 72%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are August and October (70%).
Average rainfall in September
Coushatta, LA
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is July (2.09").
Average rainfall days in September
Coushatta, LA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is October (9.8 days).
Average snowfall in September
Coushatta, LA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Coushatta, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Coushatta, LA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Coushatta, LA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in September
Coushatta, 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 3).
Average cloud cover in September
Coushatta, LA
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and October (Cloud cover 30).
Average visibility in September
Coushatta, LA
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
