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 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 arrival of September sees a recorded average high-temperature of a moderately hot 84.4°F (29.1°C), showing little divergence from the previous month's conditions. An average low-temperature of 67.6°F (19.8°C) marks the month of September in Branchville, South Carolina.Heat index
September's mean heat index is appraised at a tropical 93.2°F (34°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.For clarity, heat index numbers account for light winds and areas under shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
May, August, September and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Branchville, during September, the rain falls for 14.4 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 158.3 rainfall days, and 31.93" (811mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In Branchville, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:08 pm EDT.
Sunshine
In Branchville, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 6 transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What are the most humid months?
What is the average humidity in September in Branchville?
How much does it rain in Branchville in September?
When it does not snow in Branchville?
How many hours of daylight does Branchville have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Branchville, SC
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (54.5°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Branchville, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Branchville, SC
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Branchville, SC
- Average humidity in September: 76%
The months with the highest relative humidity are May, August, September and December (76%).
The month with the lowest relative humidity is January (70%).
Average rainfall in September
Branchville, SC
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in September
Branchville, SC
- Average rainfall days in September: 14.4 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in September
Branchville, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Branchville, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Branchville, SC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Branchville, SC
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in September
Branchville, SC
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Branchville, SC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Branchville, 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).
Branchville, South Carolina, USA
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