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 registers an average high-temperature of a still hot 86.7°F (30.4°C), slightly varied from August's 90°F (32.2°C). An average low-temperature of 70.5°F (21.4°C) marks the month of September.Heat index
In September, the average heat index is appraised at a sweltering 102.2°F (39°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Broussard, the average relative humidity in September is 79%.Rainfall
In Broussard, Louisiana, in September, it is raining for 14.9 days, with typically 1.38" (35mm) of accumulated precipitation. In Broussard, during the entire year, the rain falls for 143.3 days and collects up to 17.91" (455mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:30 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:54 pm CDT.
Sunshine
In Broussard, the average sunshine in September is 9.9h.UV index
In September, the average daily maximum UV index 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 ordinary person.Note: The UV index of 6 in September translates into these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Broussard?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Broussard, LA
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (90°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 (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Broussard, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Broussard, LA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in September
Broussard, 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 (73%).
Average rainfall in September
Broussard, LA
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is March (0.83").
Average rainfall days in September
Broussard, LA
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is August (20 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall days in September
Broussard, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 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
Broussard, 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 0min).
Average sunshine days in September
Broussard, LA
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (8 days).
Average UV index in September
Broussard, 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
Broussard, LA
- Average cloud cover in September: 29
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 25).
Average visibility in September
Broussard, 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).
Broussard, Louisiana, USA
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