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
Arceneaux records a slight change with September's average high-temperatures adjusting to a still hot 86.5°F (30.3°C) from August's 89.6°F (32°C). Throughout September, the average low-temperature records at an agreeable 70.5°F (21.4°C).Heat index
For September, the heat index is computed to be a sweltering 100.4°F (38°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in September is 79%.Rainfall
In Arceneaux, in September, during 12.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 142.3 rainfall days, and 18.07" (459mm) of precipitation is accumulated.Snowfall
In Arceneaux, snow does not fall in February through December.Daylight
The average length of the day in September in Arceneaux is 12h and 20min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:31 pm. On the last day of September, in Arceneaux, Louisiana, sunrise is at 7:02 am and sunset at 6:55 pm CDT.
Sunshine
In September, the average sunshine is 9.8h.UV index
In Arceneaux, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during September translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Arceneaux have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Arceneaux have in September?
How high is the UV index in September?
Average temperature in September
Arceneaux, LA
- Average high temperature in September: 86.5°F
The warmest months (with the highest average high temperature) are July and August (89.6°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in September: 70.5°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Arceneaux, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).
Average wind speed in September
Arceneaux, LA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Arceneaux, LA
- Average humidity in September: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Arceneaux, LA
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Arceneaux, LA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Arceneaux, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Arceneaux, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 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
Arceneaux, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Arceneaux, LA
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is August (10.4 days).
Average UV index in September
Arceneaux, 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
Arceneaux, LA
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in September
Arceneaux, 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).
Arceneaux, Louisiana, USA
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