September weather forecastSunset Beach, NC
September
Weather in September
September, the first month of the autumn in Sunset Beach, is also a moderately hot month, with an average temperature ranging between max 82°F (27.8°C) and min 70.5°F (21.4°C).Temperature
Sunset Beach's weather, upon September's arrival, documents an average high-temperature of a moderately hot 82°F (27.8°C), nearly identical to the prior month. Throughout September, Sunset Beach witnesses a consistent average low-temperature of 70.5°F (21.4°C).Heat index
In September, the average heat index is computed to be a tropical 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The months with the highest humidity are May, June, August, September and December, with an average relative humidity of 78%.Rainfall
In Sunset Beach, in September, during 17.7 rainfall days, 4.57" (116mm) of precipitation is typically accumulated. In Sunset Beach, during the entire year, the rain falls for 176.7 days and collects up to 39.21" (996mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of September, in Sunset Beach, sunrise is at 7:08 am and sunset at 6:59 pm EDT.
Sunshine
The average sunshine in September is 9.5h.UV index
In Sunset Beach, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sunset Beach, NC
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 70.5°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in September
Sunset Beach, NC
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Sunset Beach, NC
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in September
Sunset Beach, NC
- Average humidity in September: 78%
The months with the highest relative humidity are May, June, August, September and December (78%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
Sunset Beach, NC
- Average rainfall in September: 4.57"
The wettest month (with the highest rainfall) is August (6.1").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in September
Sunset Beach, NC
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Sunset Beach, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Sunset Beach, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sunset Beach, NC
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Sunset Beach, NC
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Sunset Beach, NC
- 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 February (UV index 3).
Average cloud cover in September
Sunset Beach, NC
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Sunset Beach, 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).





