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 climate shows a minor adjustment in average high-temperatures to a still tropical 87.3°F (30.7°C) from August's 91°F (32.8°C). In Simmesport, the average low-temperature during the month of September is a pleasant 68.9°F (20.5°C).Heat index
September's average heat index is estimated at a sweltering 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
In Simmesport, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 16.2 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 174.9 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
In Simmesport, snow does not fall in April through November.Daylight
In Simmesport, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of September, in Simmesport, sunrise is at 7:00 am and sunset at 6:53 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In September, the average daily maximum UV index in Simmesport is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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 much does it rain in September?
When it does not snow?
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?
How high is the UV index in September in Simmesport?
Average temperature in September
Simmesport, LA
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (57°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.7°F).
Average pressure in September
Simmesport, 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 (29.95"Hg).
Average wind speed in September
Simmesport, LA
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and September (5.2mph).
Average humidity in September
Simmesport, LA
- Average humidity in September: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Simmesport, LA
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in September
Simmesport, LA
- Average rainfall days in September: 16.2 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is October (10 days).
Average snowfall in September
Simmesport, LA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Simmesport, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Simmesport, 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 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Simmesport, LA
- Average sunshine days in September: 12 days
The month with the most sunshine days is October (19.8 days).
The months with the least sunshine days are July and August (9.2 days).
Average UV index in September
Simmesport, LA
- Average UV index in September: 6
The months with the highest UV index are 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
Simmesport, LA
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Simmesport, LA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, October, November and December (6mi).
The months with the lowest visibility are March, April, May, June, July, August and September (5mi).
Simmesport, Louisiana, USA
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