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
September's weather displays an average high-temperature of a still hot 87.3°F (30.7°C), slightly varied from August's 91.2°F (32.9°C). In Plaquemine, an average low-temperature of 70.3°F (21.3°C) is recorded during September nights.Heat index
The average heat index in September is estimated at a blisteringly hot 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 primarily vital for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in September in Plaquemine, Louisiana, is 79%.Rainfall
In September, the rain falls for 16 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 148.6 rainfall days, and 15.51" (394mm) of precipitation is accumulated.Snowfall
In Plaquemine, snow does not fall in February through December.Daylight
In September, the average length of the day in Plaquemine is 12h and 20min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:51 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In Plaquemine, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
How hot is it in Plaquemine in September?
What is the average humidity in September in Plaquemine?
How much does it rain in Plaquemine in September?
When it does not snow in Plaquemine?
What is the average length of the day in September in Plaquemine?
When is the sunrise / sunset in September in Plaquemine?
How many hours of sunshine does Plaquemine have in September?
How high is the UV index in September in Plaquemine?
Average temperature in September
Plaquemine, LA
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 70.3°F
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).
Average pressure in September
Plaquemine, 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 and August (29.96"Hg).
Average wind speed in September
Plaquemine, LA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Plaquemine, LA
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Plaquemine, LA
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in September
Plaquemine, LA
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in September
Plaquemine, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
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
Plaquemine, 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, November and December (0 days).
Average daylight in September /
Average sunshine in September
Plaquemine, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Plaquemine, LA
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index in September
Plaquemine, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Plaquemine, LA
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Plaquemine, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).
Plaquemine, Louisiana, USA
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