September weather forecast
Green Hill Plantation, SC

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Weather in September

September, the first month of the autumn in Green Hill Plantation, is still a warm month, with an average temperature ranging between max 83.7°F (28.7°C) and min 63.5°F (17.5°C).

Temperature

Green Hill Plantation in September undergoes a slight reduction in the average high-temperature, shifting from August's tropical 89.4°F (31.9°C) to a warm 83.7°F (28.7°C). Green Hill Plantation encounters a steady low-temperature average of 63.5°F (17.5°C) throughout the month of September.

Heat index

In September, the average heat index is calculated to be a hot 89.6°F (32°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.7 days and accumulates 0.79" (20mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The average high-temperature, in September, in Green Hill Plantation, is 83.7°F (28.7°C), while the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in September is calculated to be 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.79" (20mm) of precipitation.

How much does it rain in September?

In September, in Green Hill Plantation, the rain falls for 9.7 days. Throughout September, 0.79" (20mm) of precipitation is accumulated.

When it does not snow?

In Green Hill Plantation, snow does not fall in April through November.

How many hours of daylight does Green Hill Plantation have in September?

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm EDT.

How long on average sun shines in September?

In Green Hill Plantation, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September?

In Green Hill Plantation, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Green Hill Plantation, SC

Average temperature in September - Green Hill Plantation, SC
  • Average high temperature in September: 83.7°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.2°F).

  • Average low temperature in September: 63.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in September
Green Hill Plantation, SC

Average pressure in September - Green Hill Plantation, SC
  • Average pressure in September: 30.03"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
Green Hill Plantation, SC

Average wind speed in September - Green Hill Plantation, SC
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Green Hill Plantation, SC

Average humidity in September - Green Hill Plantation, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Green Hill Plantation, SC

Average rainfall in September - Green Hill Plantation, SC
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is August (2.28").
The driest month (with the least rainfall) is September (0.79").

Average rainfall days in September
Green Hill Plantation, SC

Average rainfall days in September - Green Hill Plantation, SC
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is October (7.2 days).

Average snowfall in September
Green Hill Plantation, SC

Average snowfall in September - Green Hill Plantation, 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, October and November (0").

Average snowfall days in September
Green Hill Plantation, SC

Average snowfall days in September - Green Hill Plantation, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.9 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 Hill Plantation, SC

Average daylight in September / Average sunshine in September - Green Hill Plantation, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in September
Green Hill Plantation, SC

Average sunshine days in September - Green Hill Plantation, SC
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in September
Green Hill Plantation, SC

Average UV index in September - Green Hill Plantation, SC
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Green Hill Plantation, SC

Average cloud cover in September - Green Hill Plantation, SC
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in September
Green Hill Plantation, SC

Average visibility in September - Green Hill Plantation, SC
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Green Hill Plantation, South Carolina, USA

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