September weather forecast
Mayfield Acres, SC

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Weather in September

The first month of the autumn, September, is still a warm month in Mayfield Acres, South Carolina, with an average temperature ranging between max 83.8°F (28.8°C) and min 66.2°F (19°C).

Temperature

September welcomes an average high-temperature of a moderately hot 83.8°F (28.8°C), not much different from the preceding month. During September, Mayfield Acres experiences an average low-temperature of 66.2°F (19°C) at night.

Heat index

The heat index value during September is estimated at a hot 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor 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 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In September, the rain falls for 13.7 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 157 rainfall days, and 31.54" (801mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Mayfield Acres, South Carolina, the average length of the day in September 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 September, the average sunshine 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 health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In September, in Mayfield Acres, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How much does it rain in September?

In Mayfield Acres, during September, the rain falls for 13.7 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow?

In Mayfield Acres, snow does not fall in April through October.

How many hours of daylight does Mayfield Acres have in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:07 pm EDT.

How many hours of sunshine does Mayfield Acres have in September?

In Mayfield Acres, the average sunshine duration in September is 8.9h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from 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
Mayfield Acres, SC

Average temperature in September - Mayfield Acres, 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
Mayfield Acres, SC

Average pressure in September - Mayfield Acres, 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
Mayfield Acres, SC

Average wind speed in September - Mayfield Acres, 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
Mayfield Acres, SC

Average humidity in September - Mayfield Acres, 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
Mayfield Acres, SC

Average rainfall in September - Mayfield Acres, 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
Mayfield Acres, SC

Average rainfall days in September - Mayfield Acres, 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
Mayfield Acres, SC

Average snowfall in September - Mayfield Acres, 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
Mayfield Acres, SC

Average snowfall days in September - Mayfield Acres, 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
Mayfield Acres, SC

Average daylight in September / Average sunshine in September - Mayfield Acres, 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Mayfield Acres, SC

Average sunshine days in September - Mayfield Acres, 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
Mayfield Acres, SC

Average UV index in September - Mayfield Acres, 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
Mayfield Acres, SC

Average cloud cover in September - Mayfield Acres, 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
Mayfield Acres, SC

Average visibility in September - Mayfield Acres, 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).

Mayfield Acres, South Carolina, USA

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