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
With the onset of September, the average high-temperature subtly recedes from August's tropical 88.3°F (31.3°C) to a moderately hot 82.9°F (28.3°C). Throughout September nights, Heath Springs experiences a consistent temperature average of 65.5°F (18.6°C).Heat index
September's heat index is calculated to be a tropical 89.6°F (32°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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
In September, the average relative humidity is 74%.Rainfall
In Heath Springs, South Carolina, in September, it is raining for 12.7 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 161.3 rainfall days, and 33.03" (839mm) of precipitation is accumulated.Snowfall
In Heath Springs, snow does not fall in April through October.Daylight
In September, the average length of the day 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, sunrise is at 7:17 am and sunset at 7:07 pm EDT.
Sunshine
In Heath Springs, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Heath Springs, SC
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
Heath Springs, SC
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Heath Springs, SC
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Heath Springs, 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, March, July and November (71%).
Average rainfall in September
Heath Springs, SC
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is October (2.09").
Average rainfall days in September
Heath Springs, SC
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (8.7 days).
Average snowfall in September
Heath Springs, SC
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Heath Springs, SC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.8 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
Heath Springs, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Heath Springs, SC
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Heath Springs, SC
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Heath Springs, SC
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Heath Springs, 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).
Heath Springs, South Carolina, USA
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