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 commencement of September in Emerald Isle, North Carolina, records an average high-temperature of a still moderately hot 81.3°F (27.4°C), barely varying from August's 85.1°F (29.5°C). The average temperature in Emerald Isle drops to a pleasant 71.6°F (22°C) during the night in the month of September.Heat index
The heat index value during September is estimated at a hot 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in September is 77%.Rainfall
In Emerald Isle, in September, during 15 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 156.1 rainfall days, and 21.61" (549mm) of precipitation is accumulated.Snowfall
In Emerald Isle, North Carolina, snow does not fall in April through December.Ocean temperature
In September, the average ocean temperature in Emerald Isle is 80.8°F (27.1°C).Note: Surface water temperatures falling between 77°F (25°C) and 84.2°F (29°C) are regarded as prime and extremely agreeable for enduring periods during any water activity.
Daylight
In Emerald Isle, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:33 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:52 pm EDT.
Sunshine
In Emerald Isle, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September in Emerald Isle is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Emerald Isle in September?
What is the average humidity in September in Emerald Isle?
How much does it rain in Emerald Isle in September?
When it does not snow in Emerald Isle?
What is the ocean temperature in September in Emerald Isle?
What is the average length of the day in September in Emerald Isle?
When is the sunrise / sunset in September in Emerald Isle?
How long on average sun shines in September in Emerald Isle?
What is the UV index intensity in September in Emerald Isle?
Average temperature in September
Emerald Isle, NC
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (53.1°F).
- Average low temperature in September: 71.6°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 (41.2°F).
Average pressure in September
Emerald Isle, NC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Emerald Isle, NC
- Average wind speed in September: 9.6mph
The windiest months (with the highest average wind speed) are February, March and April (11.1mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Emerald Isle, NC
- Average humidity in September: 77%
The month with the highest relative humidity is August (78%).
The months with the lowest relative humidity are January, February, March and April (74%).
Average rainfall in September
Emerald Isle, NC
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Emerald Isle, NC
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in September
Emerald Isle, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Emerald Isle, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Emerald Isle, NC
- Average sea temperature in September: 80.9°F
The best month for swimming (with the highest average sea temperature) is August (83.2°F).
The coldest month (with the lowest average sea temperature) is February (61.3°F).
Average daylight in September /
Average sunshine in September
Emerald Isle, 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 month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Emerald Isle, NC
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is August (8.4 days).
Average UV index in September
Emerald Isle, 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 December (UV index 3).
Average cloud cover in September
Emerald Isle, NC
- Average cloud cover in September: 32
The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Emerald Isle, 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).
Emerald Isle, North Carolina, USA
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