September weather forecast
South Congaree, SC

Weather in September

The first month of the autumn, September, is still a warm month in South Congaree, South Carolina, with average temperature fluctuating between 84.6°F (29.2°C) and 67.1°F (19.5°C).

Temperature

In South Congaree, South Carolina, the average high-temperature marginally drops, from a hot 90°F (32.2°C) in August, to a warm 84.6°F (29.2°C). In September, the average low-temperature is 67.1°F (19.5°C).

Heat index

In September, the average heat index is evaluated at a tropical 92.5°F (33.6°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, pregnancy, wind, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in South Congaree, South Carolina, is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.6 days and accumulates 0.98" (25mm) of precipitation.

Snowfall

In South Congaree snow does not fall in March through December.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In South Congaree, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in South Congaree?

In September, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 92.5°F (33.6°C).

What is the average humidity in September in South Congaree?

In September, the average relative humidity is 72%.

What is the driest month in South Congaree?

September is the month with the least rainfall. Rain falls for 9.6 days and accumulates 0.98" (25mm) of precipitation.

How much does it rain in South Congaree in September?

In South Congaree, during September, the rain falls for 9.6 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow in South Congaree?

In South Congaree snow does not fall in March through December.

How many hours of daylight does South Congaree have in September?

The average length of the day in September is 12.4h.

How many hours of sunshine does South Congaree have in September?

In September, the average sunshine in South Congaree, South Carolina, is 8.6h.

What is the UV index reading in September in South Congaree?

The average daily maximum UV index in September in South Congaree is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.

Average temperature in September
South Congaree, SC

Average temperature in September - South Congaree, SC
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.9°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).

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Average pressure in September
South Congaree, SC

Average pressure in September - South Congaree, SC
  • Average pressure in September: 30.01"

Months with the highest atmospheric pressure are January, November and December (30.14").
The month with the lowest atmospheric pressure is June (29.97").

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Average wind speed in September
South Congaree, SC

Average wind speed in September - South Congaree, SC
  • Average wind speed in September: 6.1mph

The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
South Congaree, SC

Average humidity in September - South Congaree, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
South Congaree, SC

Average rainfall in September - South Congaree, SC
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is August (2.17").
The driest month (with the least rainfall) is September (0.98").

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Average rainfall days in September
South Congaree, SC

Average rainfall days in September - South Congaree, SC
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (6.6 days).

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Average snowfall in September
South Congaree, SC

Average snowfall in September - South Congaree, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
South Congaree, SC

Average snowfall days in September - South Congaree, SC
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and February (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
South Congaree, SC

Average daylight in September / Average sunshine in September - South Congaree, SC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 10.9h).
The month with the least sunshine is December (Average sunshine: 5.4h).

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Average sunshine days in September
South Congaree, SC

Average sunshine days in September - South Congaree, SC
  • Average sunshine days in September: 19.2 days

The month with the most sunshine days is October (23 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index in September
South Congaree, SC

Average UV index in September - South Congaree, SC
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in September
South Congaree, SC

Average cloud cover in September - South Congaree, SC
  • Average cloud cover in September: 31

Months with the most cloud cover are February and December (Cloud cover 41).
Months with the least cloud cover are June and October (Cloud cover 28).

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Average visibility in September
South Congaree, SC

Average visibility in September - South Congaree, SC
  • Average visibility in September: 6mi

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

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