September weather forecastNags Head, NC
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Nags Head, North Carolina, with an average temperature fluctuating between 72.9°F (22.7°C) and 77.7°F (25.4°C).Temperature
Stepping into September, Nags Head records an average high-temperature of a still warm 77.7°F (25.4°C), almost consistent with August. In September, Nags Head temperatures settle at a low of 72.9°F (22.7°C) during the nights, reflecting a minor change from daytime highs.Humidity
The average relative humidity in September is 77%.Rainfall
In Nags Head, in September, during 16.3 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 165.9 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
In Nags Head, snow does not fall in April through December.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nags Head, NC
- Average high temperature in September: 77.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 72.9°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).
Average pressure in September
Nags Head, NC
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Nags Head, NC
- Average wind speed in September: 11.9mph
The windiest month (with the highest average wind speed) is March (14mph).
The calmest month (with the lowest average wind speed) is August (10mph).
Average humidity in September
Nags Head, NC
- Average humidity in September: 77%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (74%).
Average rainfall in September
Nags Head, NC
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Nags Head, NC
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is August (19.4 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in September
Nags Head, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Nags Head, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Nags Head, NC
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Nags Head, NC
- Average sunshine days in September: 11 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is August (8 days).
Average UV index in September
Nags Head, 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, February and December (UV index 3).
Average cloud cover in September
Nags Head, NC
- Average cloud cover in September: 32
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in September
Nags Head, 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).
