September weather forecast
Masonboro, NC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Masonboro, North Carolina, with an average temperature varying between 81.9°F (27.7°C) and 72°F (22.2°C).

Temperature

The unfolding of September shows an average high-temperature of a still moderately hot 81.9°F (27.7°C), indicating a slight variance from August's 85.8°F (29.9°C). September nights are marked by an average low-temperature of 72°F (22.2°C).

Heat index

In September, the average heat index is computed to be a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The average relative humidity in September in Masonboro, North Carolina, is 76%.

Rainfall

September is the month with the most rainfall. Rain falls for 14.4 days and accumulates 2.91" (74mm) of precipitation.

Snowfall

March through November are months without snowfall.

Ocean temperature

In September, the average ocean temperature is 80.4°F (26.9°C).
Note: For any water activity, the surface water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are deemed excellent and incredibly pleasant for longer durations.

Daylight

The average length of the day in September in Masonboro is 12h and 23min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:37 pm. On the last day of September, in Masonboro, sunrise is at 7:05 am and sunset at 6:56 pm EDT.

Sunshine

The average sunshine in September in Masonboro is 9.6h.

UV index

In Masonboro, North Carolina, 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 rays for ordinary individuals.
Note: The UV index of 6 during September leads to these advisories:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
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Frequently asked questions

What are the temperatures in Masonboro in September?

In September, in Masonboro, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 72°F (22.2°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in September in Masonboro?

In Masonboro, the average relative humidity in September is 76%.

What is the rainiest month in Masonboro?

The month with the most rainfall in Masonboro is September, when the rain falls for 14.4 days and typically aggregates up to 2.91" (74mm) of precipitation.

How much does it rain in Masonboro in September?

In Masonboro, North Carolina, in September, during 14.4 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in Masonboro?

March through November are months without snowfall in Masonboro.

How warm is the water in September in Masonboro?

In Masonboro, in September, the average water temperature is 80.4°F (26.9°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Masonboro have in September?

The average day length in September in Masonboro is 12h and 23min.

When is the sunrise / sunset in September in Masonboro?

On the first day of September in Masonboro, North Carolina, sunrise is at 6:45 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:56 pm EDT.

How long on average sun shines in September in Masonboro?

In Masonboro, North Carolina, the average sunshine duration in September is 9.6h.

What is the UV index reading in September in Masonboro?

In Masonboro, North Carolina, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Masonboro, NC

Average temperature in September - Masonboro, NC
  • Average high temperature in September: 81.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (54.5°F).

  • Average low temperature in September: 72°F

The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in September
Masonboro, NC

Average pressure in September - Masonboro, NC
  • Average pressure in September: 30.01"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).

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Average wind speed in September
Masonboro, NC

Average wind speed in September - Masonboro, 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 (8.2mph).

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Average humidity in September
Masonboro, NC

Average humidity in September - Masonboro, NC
  • Average humidity in September: 76%

The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January and March (73%).

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Average rainfall in September
Masonboro, NC

Average rainfall in September - Masonboro, NC
  • Average rainfall in September: 2.91"

The wettest month (with the highest rainfall) is September (2.91").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in September
Masonboro, NC

Average rainfall days in September - Masonboro, NC
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is November (8.2 days).

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Average snowfall in September
Masonboro, NC

Average snowfall in September - Masonboro, NC
  • Average snowfall in September: 0"

The months with the highest snowfall are January, February and December (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Masonboro, NC

Average snowfall days in September - Masonboro, 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 April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in September
Masonboro, NC

Average sea temperature in September - Masonboro, NC
  • Average sea temperature in September: 80.4°F

The best month for swimming (with the highest average sea temperature) is August (82.8°F).
The coldest month (with the lowest average sea temperature) is February (57.5°F).

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Average daylight in September /
Average sunshine in September
Masonboro, NC

Average daylight in September / Average sunshine in September - Masonboro, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Masonboro, NC

Average sunshine days in September - Masonboro, NC
  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (8.2 days).

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Average UV index in September
Masonboro, NC

Average UV index in September - Masonboro, 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).

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Average cloud cover in September
Masonboro, NC

Average cloud cover in September - Masonboro, NC
  • Average cloud cover in September: 30

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in September
Masonboro, NC

Average visibility in September - Masonboro, 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).

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Masonboro, North Carolina, USA

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