Wilmington
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Wilmington, NC

A creative creation on a large field in Wilmington, North Carolina, near the skyscape of the city afar, and intense white clouds in the blue sky above
A creative creation on a large field in Wilmington, North Carolina, near the skyscape of the city afar, and intense white clouds in the blue sky above
The first month of the autumn, Septiembre, is also a moderately hot month in Wilmington, North Carolina, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 65.7°F (18.7°C).

Temperature

In Wilmington, the average high-temperature is relatively the same as in Agosto - a warm 83.7°F (28.7°C). The average low-temperature, in Wilmington, is 65.7°F (18.7°C).

Heat index

In Septiembre, the average heat index is calculated to a tropical 93°F (33.9°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like differences in body mass, height, and shape, pregnancy, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Wilmington, the average relative humidity is 79.9%.

Rainfall

The month with the most rainfall in Wilmington is Septiembre when the rain falls for 12.8 days and typically aggregates up to 7.84" (199.1mm) of precipitation.

Snowfall

Abril through Noviembre are months without snowfall in Wilmington.

Ocean temperature

In Wilmington, North Carolina, in Septiembre, the average water temperature is 80.4°F (26.9°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Wilmington, the average length of the day is 12.4h.

Sunshine

The average sunshine in Wilmington is 7.7h.

UV index

In Septiembre, the average daily maximum UV index in Wilmington is 8. A UV Index of 8 to 10 symbolizes a very high threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 8 interpret into the following advice:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in Septiembre in Wilmington?

In Septiembre, in Wilmington, North Carolina, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 65.7°F (18.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that calculates temperature value influenced by the moisture in the air, in Septiembre is appraised at 93°F (33.9°C).

What is the average humidity in Septiembre in Wilmington?

In Septiembre, the average relative humidity in Wilmington, North Carolina, is 79.9%.

How much does it rain in Wilmington in Septiembre?

In Wilmington, in Septiembre, it is raining for 12.8 days, with typically 7.84" (199.1mm) of accumulated precipitation.

What is the wettest month in Wilmington?

The month with the most rainfall in Wilmington, North Carolina, is Septiembre when the rain falls for 12.8 days and typically aggregates up to 7.84" (199.1mm) of precipitation.

When it does not snow in Wilmington?

Abril through Noviembre are months without snowfall.

What is the ocean temperature in Septiembre in Wilmington?

In Wilmington, in Septiembre, 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.

What is the average length of the day in Septiembre in Wilmington?

The average length of the day in Septiembre in Wilmington, North Carolina, is 12.4h.

How long on average sun shines in Septiembre in Wilmington?

The average sunshine in Septiembre is 7.7h.

What is the UV index reading in Septiembre in Wilmington?

In Wilmington, North Carolina, the average daily maximum UV index in Septiembre is 8. A UV Index reading of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Wilmington, NC
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (89.7°F).
The month with the lowest average high temperature is January (56.4°F).

  • Average low temperature in September: 65.6°F

The month with the highest average low temperature is July (72.6°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).

Average humidity in September - Wilmington, NC
  • Average humidity in September: 79.9%

The month with the highest relative humidity is August (80.7%).
The month with the lowest relative humidity is April (66.8%).

Average rainfall in September - Wilmington, NC
  • Average rainfall in September: 7.8"

The wettest month (with the highest rainfall) is September (7.8").
The driest month (with the lowest rainfall) is April (2.8").

Average rainfall days in September - Wilmington, NC
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (16.4 days).
The month with the lowest number of rainy days is April (8.5 days).

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

The month with the highest snowfall is December (0.8").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Wilmington, NC
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January, February and December (0.3 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in September - Wilmington, 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).

Average daylight in September / Average sunshine in September - Wilmington, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 7.7h

The month with most sunshine is June (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 5.8h).

Average UV index in September - Wilmington, NC
  • Average UV index in September: 8

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).