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
Fish Island experiences an average high-temperature of a still hot 86.2°F (30.1°C) in September, marking an insignificant shift from 89.6°F (32°C) in August. In the month of September, an average of 72.1°F (22.3°C) marks the low-temperature.Heat index
The heat index for September is computed to be a very hot 100.4°F (38°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The average relative humidity in September in Fish Island is 79%.Rainfall
In Fish Island, during September, the rain falls for 14 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Fish Island, during the entire year, the rain falls for 131.2 days and collects up to 11.38" (289mm) of precipitation.Snowfall
In Fish Island, snow does not fall in February through December.Daylight
In Fish Island, 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 7:28 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:52 pm CDT.
Sunshine
The average sunshine in September is 10.3h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 during September translates into the following directions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Fish Island have in September?
When is the sunrise / sunset in September in Fish Island?
How many hours of sunshine does Fish Island have in September?
What is the UV index intensity in September?
Average temperature in September
Fish Island, LA
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in September
Fish Island, 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, August and September (29.96"Hg).
Average wind speed in September
Fish Island, LA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are February and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Fish Island, LA
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Fish Island, LA
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.35").
Average rainfall days in September
Fish Island, LA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in September
Fish Island, 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
Fish Island, 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
Fish Island, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Fish Island, LA
- Average sunshine days in September: 11 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in September
Fish Island, 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
Fish Island, LA
- Average cloud cover in September: 26
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Fish Island, 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).
Fish Island, Louisiana, USA
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