September weather forecast
Mauldin, SC

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Weather in September

September in Mauldin, South Carolina, ushers in the autumn season with a drop in the average temperatures. The heat of the summer months gradually starts receding leading to a pleasant weather. This month observes less rainfall compared to August, marking the beginning of the dry season. September presents a balance in terms of humidity, temperature, and wind patterns, making it a desirable month for many outdoor activities. Despite the daylight hours lessening, the visibility remains fairly good.

Temperature

September's commencement in Mauldin is accompanied by an average high-temperature of a warm 83.1°F (28.4°C), diverging marginally from August's 88.3°F (31.3°C). In September, the average low-temperature is a refreshing 63.3°F (17.4°C).

Heat index

The heat index value for September is appraised at a tropical 89.6°F (32°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.

Snowfall

In Mauldin, snow does not fall in April through October.

Daylight

In Mauldin, the average length of the day in September is 12h and 23min.
On the first day of September in Mauldin, sunrise is at 7:02 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September in Mauldin, South Carolina, is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Mauldin, is 83.1°F (28.4°C), while the low-temperature averages to 63.3°F (17.4°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.

How many days does it rain in September?

In Mauldin, in September, during 12 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

When it does not snow?

In Mauldin, snow does not fall in April through October.

What is the average length of the day in September?

The average day length in September in Mauldin is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.

How long on average sun shines in September?

In Mauldin, the average sunshine duration in September is 8.7h.

What is the UV index reading in September?

In Mauldin, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Mauldin, SC

Average temperature in September - Mauldin, SC
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).

Average pressure in September
Mauldin, SC

Average pressure in September - Mauldin, SC
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in September
Mauldin, SC

Average wind speed in September - Mauldin, SC
  • Average wind speed in September: 5mph

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

Average humidity in September
Mauldin, SC

Average humidity in September - Mauldin, 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
Mauldin, SC

Average rainfall in September - Mauldin, SC
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in September
Mauldin, SC

Average rainfall days in September - Mauldin, SC
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is October (9.6 days).

Average snowfall in September
Mauldin, SC

Average snowfall in September - Mauldin, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is December (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Mauldin, SC

Average snowfall days in September - Mauldin, SC
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.4 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
Mauldin, SC

Average daylight in September / Average sunshine in September - Mauldin, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
Mauldin, SC

Average sunshine days in September - Mauldin, SC
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in September
Mauldin, SC

Average UV index in September - Mauldin, SC
  • Average UV index in September: 5

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

Average cloud cover in September
Mauldin, SC

Average cloud cover in September - Mauldin, SC
  • Average cloud cover in September: 30

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

Average visibility in September
Mauldin, SC

Average visibility in September - Mauldin, 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).

Mauldin, South Carolina, USA

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