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
The high-temperature average in September for Oak Island is a still warm 81.9°F (27.7°C), staying closely aligned with August's conditions. Oak Island in September experiences a low-temperature average of 72.5°F (22.5°C).Heat index
The average heat index in September is estimated at a tropical 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
The average relative humidity in September is 76%.Rainfall
In Oak Island, in September, it is raining for 15.5 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, in Oak Island, there are 157.9 rainfall days, and 24.69" (627mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Oak Island, North Carolina.Ocean temperature
In Oak Island, North Carolina, the average seawater temperature in September is 80.2°F (26.8°C).Note: Swimming, diving, and other water activities in temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are highly enjoyable and provide prolonged comfort without unease.
Daylight
The average length of the day in September in Oak Island is 12h and 22min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:57 pm EDT.
Sunshine
The average sunshine in September is 9.5h.UV index
In Oak Island, North Carolina, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Oak Island in September?
What is the average humidity in September in Oak Island?
How much does it rain in Oak Island in September?
When it does not snow in Oak Island?
What is the ocean temperature in September in Oak Island?
What is the average length of the day in September in Oak Island?
When are sunrise and sunset in September in Oak Island?
How long on average sun shines in September in Oak Island?
What is the UV index reading in September in Oak Island?
Average temperature in September
Oak Island, NC
- Average high temperature in September: 81.9°F
The warmest months (with the highest average high temperature) are July and August (85.6°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 72.5°F
The month with the highest average low temperature is July (77.4°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).
Average pressure in September
Oak Island, 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
Oak Island, NC
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is February (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in September
Oak Island, NC
- Average humidity in September: 76%
The month with the highest relative humidity is June (78%).
The months with the lowest relative humidity are January, March, October and November (74%).
Average rainfall in September
Oak Island, NC
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Oak Island, NC
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Oak Island, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Oak Island, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Oak Island, 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
Oak Island, 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 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Oak Island, NC
- Average sunshine days in September: 11.6 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (7.8 days).
Average UV index in September
Oak Island, 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
Oak Island, NC
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Oak Island, 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).
Oak Island, North Carolina, USA
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