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 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 brings an average high-temperature of a still tropical 86.2°F (30.1°C), showing a slight difference from August's 89.2°F (31.8°C). In September, Meraux encounters an average low-temperature of 76.6°F (24.8°C) during the night.Heat index
In September, the heat index is computed to be a fiery hot 96.8°F (36°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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 combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Meraux, the average relative humidity in September is 72%.Rainfall
In September, in Meraux, the rain falls for 16.2 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 146.1 rainfall days, and 16.85" (428mm) of precipitation is accumulated.Snowfall
In Meraux, snow does not fall in February through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:45 pm CDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September in Meraux?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Meraux have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Meraux have in September?
What are the months with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Meraux, LA
- Average high temperature in September: 86.2°F
The warmest months (with the highest average high temperature) are July and August (89.2°F).
The month with the lowest average high temperature is January (60.3°F).
- Average low temperature in September: 76.6°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).
Average pressure in September
Meraux, 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, August and September (29.97"Hg).
Average wind speed in September
Meraux, LA
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Meraux, LA
- Average humidity in September: 72%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Meraux, LA
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Meraux, LA
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (5.6 days).
Average snowfall days in September
Meraux, LA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.1 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
Meraux, 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: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Meraux, LA
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (7 days).
Average UV index in September
Meraux, LA
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Meraux, LA
- Average cloud cover in September: 25
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Meraux, 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).
Meraux, Louisiana, USA
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