September weather forecastSandwood Hills, SC
September
Weather in September
The first month of the autumn, September, is still a warm month in Sandwood Hills, South Carolina, with an average temperature varying between 83.8°F (28.8°C) and 66.2°F (19°C).Temperature
Sandwood Hills's weather, upon September's arrival, documents an average high-temperature of a warm 83.8°F (28.8°C), nearly identical to the prior month. During September, Sandwood Hills records a consistent average nighttime temperature of 66.2°F (19°C).Heat index
September's average heat index is estimated at a tropical 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in September in Sandwood Hills, South Carolina, is 74%.Rainfall
In Sandwood Hills, during September, the rain falls for 13.7 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Sandwood Hills, during the entire year, the rain falls for 157 days and collects up to 31.54" (801mm) of precipitation.Snowfall
April through October are months without snowfall in Sandwood Hills, South Carolina.Daylight
In September, the average length of the day in Sandwood Hills, South Carolina, is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of September, in Sandwood Hills, sunrise is at 7:17 am and sunset at 7:08 pm EDT.
Sunshine
In Sandwood Hills, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 6 in September transforms into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sandwood Hills, SC
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure in September
Sandwood Hills, SC
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Sandwood Hills, SC
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Sandwood Hills, SC
- Average humidity in September: 74%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January and November (70%).
Average rainfall in September
Sandwood Hills, SC
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is August (3.66").
The driest months (with the least rainfall) are January and November (1.97").
Average rainfall days in September
Sandwood Hills, SC
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is October (8.2 days).
Average snowfall in September
Sandwood Hills, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Sandwood Hills, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sandwood Hills, 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: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Sandwood Hills, SC
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Sandwood Hills, 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
Sandwood Hills, SC
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Sandwood Hills, 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).
