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 sea temperature 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
Southport marks the arrival of September with an average high-temperature of a warm 82.2°F (27.9°C), hardly different from August's 86.2°F (30.1°C). Southport reports an average low-temperature of 72°F (22.2°C) during the nights of September.Heat index
September's heat index is evaluated at a tropical 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Southport, the average relative humidity in September is 76%.Rainfall
In September, in Southport, the rain falls for 17.5 days. Throughout September, 5.79" (147mm) of precipitation is accumulated. Throughout the year, there are 181.2 rainfall days, and 43.94" (1116mm) of precipitation is accumulated.Snowfall
March through November are months without snowfall in Southport, North Carolina.Ocean temperature
In Southport, North Carolina, in September, the average water temperature is 80.2°F (26.8°C).Note: With water temperature from 77°F (25°C) to 84.2°F (29°C), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.
Daylight
In September, the average length of the day in Southport is 12h and 22min.On the first day of September in Southport, sunrise is at 6:46 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:57 pm EDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Southport is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during September leads to these advisories:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Southport?
What is the average humidity in September in Southport?
How much does it rain in Southport in September?
When it does not snow in Southport?
What is the ocean temperature in September in Southport?
What is the average length of the day in September in Southport?
When are sunrise and sunset in September in Southport?
How many hours of sunshine does Southport have in September?
How high is the UV index in September in Southport?
Average temperature in September
Southport, NC
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (55.4°F).
- Average low temperature in September: 72°F
The month with the highest average low temperature is July (76.8°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).
Average pressure in September
Southport, NC
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Southport, NC
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in September
Southport, NC
- Average humidity in September: 76%
The months with the highest relative humidity are May, June, August and December (77%).
The month with the lowest relative humidity is March (73%).
Average rainfall in September
Southport, NC
- Average rainfall in September: 5.79"
The wettest month (with the highest rainfall) is August (6.18").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Southport, NC
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
Southport, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Southport, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Southport, NC
- Average sea temperature in September: 80.3°F
The best month for swimming (with the highest average sea temperature) is August (82.7°F).
The coldest month (with the lowest average sea temperature) is March (56°F).
Average daylight in September /
Average sunshine in September
Southport, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Southport, NC
- Average sunshine days in September: 10.1 days
The months with the most sunshine days are October and December (17.6 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in September
Southport, NC
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Southport, NC
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in September
Southport, NC
- 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).
Southport, North Carolina, USA
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