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 days 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
North Myrtle Beach records an average high-temperature of a still moderately hot 81.7°F (27.6°C) in September, maintaining a close correlation with August's 85.6°F (29.8°C). During September, North Myrtle Beach records an average temperature of 70.7°F (21.5°C) at night.Heat index
During September, the heat index is computed to be a hot 87.8°F (31°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in September is 77%.Rainfall
In North Myrtle Beach, in September, during 10.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In North Myrtle Beach, South Carolina, during the entire year, the rain falls for 115.4 days and collects up to 10.75" (273mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In North Myrtle Beach, the average length of the day in September is 12h and 22min.On the first day of September in North Myrtle Beach, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 7:00 pm EDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In North Myrtle Beach, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in North Myrtle Beach?
How many hours of daylight does North Myrtle Beach have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does North Myrtle Beach have in September?
How high is the UV index in September?
Average temperature in September
North Myrtle Beach, SC
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
North Myrtle Beach, SC
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
North Myrtle Beach, SC
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in September
North Myrtle Beach, SC
- Average humidity in September: 77%
The months with the highest relative humidity are May, June, August and December (78%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
North Myrtle Beach, SC
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is August (1.81").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
North Myrtle Beach, SC
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is August (16 days).
The month with the least rainy days is January (6.3 days).
Average snowfall days in September
North Myrtle Beach, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
North Myrtle Beach, SC
- 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 months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
North Myrtle Beach, SC
- Average sunshine days in September: 14 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in September
North Myrtle Beach, SC
- 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
North Myrtle Beach, SC
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
North Myrtle Beach, SC
- 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).
North Myrtle Beach, South Carolina, USA
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