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
September's weather records an average high-temperature of a still moderately hot 81.7°F (27.6°C), showing little deviation from August. September in Atlantic Beach, South Carolina, witnesses an average low-temperature hovering around an agreeable 70.7°F (21.5°C).Heat index
In September, the average heat index is calculated to be a hot 87.8°F (31°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity in Atlantic Beach is 77%.Rainfall
In Atlantic Beach, during September, the rain falls for 10.5 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Atlantic Beach, 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 in Atlantic Beach.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:00 pm EDT.
Sunshine
In September, the average sunshine is 9.6h.UV index
In Atlantic Beach, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What are September temperatures in Atlantic Beach?
What is the average humidity in September in Atlantic Beach?
How much does it rain in Atlantic Beach in September?
When it does not snow in Atlantic Beach?
What is the average length of the day in September in Atlantic Beach?
When are sunrise and sunset in September in Atlantic Beach?
How long on average sun shines in September in Atlantic Beach?
How high is the UV index in September in Atlantic Beach?
Average temperature in September
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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: 10h and 0min).
- 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
Atlantic 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
Atlantic 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
Atlantic 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
Atlantic 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).
Atlantic Beach, South Carolina, USA
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