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
North Island, Louisiana, marks the onset of September with an average high-temperature of a still hot 86.7°F (30.4°C), a subtle shift from August's 90°F (32.2°C). September sees the temperature falling to a mean low of 71.2°F (21.8°C).Heat index
The heat index in September is estimated at a very hot 100.4°F (38°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In September, the average relative humidity is 78%.Rainfall
In September, in North Island, Louisiana, the rain falls for 13.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. In North Island, during the entire year, the rain falls for 133.1 days and collects up to 13.9" (353mm) of precipitation.Snowfall
In North Island, snow does not fall in February through November.Daylight
In North Island, the average length of the day in September is 12h and 20min.On the first day of September in North Island, sunrise is at 6:48 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:57 pm CDT.
Sunshine
In North Island, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
How hot is it in North Island in September?
What is the average humidity in September in North Island?
How much does it rain in North Island in September?
When it does not snow in North Island?
How many hours of daylight does North Island have in September?
When are sunrise and sunset in September in North Island?
How many hours of sunshine does North Island have in September?
How high is the UV index in September in North Island?
Average temperature in September
North Island, LA
- Average high temperature in September: 86.7°F
The warmest months (with the highest average high temperature) are July and August (90°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 71.2°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
North Island, 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 (29.94"Hg).
Average wind speed in September
North Island, LA
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are February and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
North Island, LA
- Average humidity in September: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
North Island, LA
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is March (0.71").
Average rainfall days in September
North Island, LA
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in September
North Island, LA
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
North Island, 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 and November (0 days).
Average daylight in September /
Average sunshine in September
North 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: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
North Island, LA
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in September
North 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
North Island, LA
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in September
North 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).
North Island, Louisiana, USA
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