September weather forecastGreen Sea, SC
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Green Sea, South Carolina, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 83.3°F (28.5°C).Temperature
September's onset brings an average high-temperature of a warm 83.3°F (28.5°C), showing a minute difference from August's 87.6°F (30.9°C). Green Sea's average low-temperature in September is measured at an enjoyable 67.1°F (19.5°C).Heat index
Throughout September, the heat index is calculated to be a hot 91.4°F (33°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
The months with the highest humidity are May, June, August and September, with an average relative humidity of 79%.Rainfall
In Green Sea, in September, it is raining for 16 days, with typically 3.9" (99mm) of accumulated precipitation. In Green Sea, during the entire year, the rain falls for 173.5 days and collects up to 36.61" (930mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Green Sea, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:01 pm EDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 6 turns into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Green Sea, SC
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in September
Green Sea, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Green Sea, SC
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Green Sea, SC
- Average humidity in September: 79%
The months with the highest relative humidity are May, June, August and September (79%).
The month with the lowest relative humidity is January (73%).
Average rainfall in September
Green Sea, SC
- Average rainfall in September: 3.9"
The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Green Sea, SC
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (21.3 days).
The months with the least rainy days are October and November (9.7 days).
Average snowfall in September
Green Sea, SC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Green Sea, SC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Green Sea, SC
- Average daylight in September: 12h and 24min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Green Sea, SC
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in September
Green Sea, SC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Green Sea, SC
- Average cloud cover in September: 33
The months with the most cloud cover are February, March and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Green Sea, 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).
