September weather forecast
Supreme Forest, SC

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Weather in September

September, the first month of the autumn in Supreme Forest, is also a moderately hot month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 82.4°F (28°C).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 88.3°F (31.3°C) in August to a warm 82.4°F (28°C). Throughout September, a steady low-temperature average of 61.9°F (16.6°C) is noted.

Heat index

During September, the heat index is evaluated at a tropical 87.8°F (31°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In September, the average relative humidity is 72%.

Rainfall

September is the month with the least rainfall in Supreme Forest. Rain falls for 11.5 days and accumulates 1.38" (35mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September in Supreme Forest, sunrise is at 7:03 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine in Supreme Forest is 8.6h.

UV index

The average daily maximum UV index in September in Supreme Forest 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: The maximum UV index, 5 during September, leads to the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Supreme Forest in September?

In September, the average high-temperature and low-temperature in Supreme Forest, South Carolina, are 82.4°F (28°C) and 61.9°F (16.6°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is evaluated at 87.8°F (31°C).

What is the average humidity in September in Supreme Forest?

In September, the average relative humidity in Supreme Forest is 72%.

What is the driest month in Supreme Forest?

The month with the least rainfall in Supreme Forest, South Carolina, is September, when the rain falls for 11.5 days and typically collects 1.38" (35mm) of precipitation.

How much does it rain in Supreme Forest in September?

In Supreme Forest, in September, it is raining for 11.5 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow in Supreme Forest?

April through October are months without snowfall.

How many hours of daylight does Supreme Forest have in September?

In Supreme Forest, South Carolina, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September in Supreme Forest?

On the first day of September in Supreme Forest, South Carolina, sunrise is at 7:03 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

How many hours of sunshine does Supreme Forest have in September?

The average sunshine duration in September in Supreme Forest, South Carolina, is 8.6h.

What is the UV index intensity in September in Supreme Forest?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Supreme Forest, SC

Average temperature in September - Supreme Forest, SC
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in September
Supreme Forest, SC

Average pressure in September - Supreme Forest, SC
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Supreme Forest, SC

Average wind speed in September - Supreme Forest, SC
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in September
Supreme Forest, SC

Average humidity in September - Supreme Forest, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Supreme Forest, SC

Average rainfall in September - Supreme Forest, SC
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.38").

Average rainfall days in September
Supreme Forest, SC

Average rainfall days in September - Supreme Forest, SC
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in September
Supreme Forest, SC

Average snowfall in September - Supreme Forest, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Supreme Forest, SC

Average snowfall days in September - Supreme Forest, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 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
Supreme Forest, SC

Average daylight in September / Average sunshine in September - Supreme Forest, SC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

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
Supreme Forest, SC

Average sunshine days in September - Supreme Forest, SC
  • Average sunshine days in September: 17 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is August (13.2 days).

Average UV index in September
Supreme Forest, SC

Average UV index in September - Supreme Forest, SC
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Supreme Forest, SC

Average cloud cover in September - Supreme Forest, SC
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).

Average visibility in September
Supreme Forest, SC

Average visibility in September - Supreme Forest, 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).

Supreme Forest, South Carolina, USA

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