September weather forecast
Kershaw, SC

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Weather in September

September, the first month of the autumn in Kershaw, is also a moderately hot month, with an average temperature varying between 82.9°F (28.3°C) and 65.5°F (18.6°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a hot 88.3°F (31.3°C) in August to a warm 82.9°F (28.3°C). During September, Kershaw experiences a consistent low-temperature average of 65.5°F (18.6°C).

Heat index

For most parts of September, the heat index is appraised at a tropical 89.6°F (32°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Kershaw, in September, it is raining for 12.7 days, with typically 2.36" (60mm) of accumulated precipitation. In Kershaw, during the entire year, the rain falls for 161.3 days and collects up to 33.03" (839mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Kershaw, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:55 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm EDT.

Sunshine

In September, the average sunshine in Kershaw is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In Kershaw, 82.9°F (28.3°C) is the average high-temperature and 65.5°F (18.6°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), 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?

The average relative humidity in September is 74%.

How much does it rain in September?

In Kershaw, during September, the rain falls for 12.7 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Kershaw?

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

How many hours of daylight does Kershaw have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:48 pm. On the last day of the month, in Kershaw, sunrise is at 7:16 am and sunset at 7:07 pm EDT.

How many hours of sunshine does Kershaw have in September?

In September, the average sunshine duration in Kershaw is 8.8h.

How high is the UV index in September?

In Kershaw, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Kershaw, SC

Average temperature in September - Kershaw, SC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (36°F).

Average pressure in September
Kershaw, SC

Average pressure in September - Kershaw, SC
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Kershaw, SC

Average wind speed in September - Kershaw, SC
  • Average wind speed in September: 5.9mph

The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Kershaw, SC

Average humidity in September - Kershaw, 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, March, July and November (71%).

Average rainfall in September
Kershaw, SC

Average rainfall in September - Kershaw, SC
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is October (2.09").

Average rainfall days in September
Kershaw, SC

Average rainfall days in September - Kershaw, SC
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is October (8.7 days).

Average snowfall in September
Kershaw, SC

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

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Kershaw, SC

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

The months with the highest number of snowfall days are January and February (0.8 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
Kershaw, SC

Average daylight in September / Average sunshine in September - Kershaw, 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: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
Kershaw, SC

Average sunshine days in September - Kershaw, SC
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Kershaw, SC

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

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September
Kershaw, SC

Average cloud cover in September - Kershaw, SC
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in September
Kershaw, SC

Average visibility in September - Kershaw, 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).

Kershaw, South Carolina, USA

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