September weather forecast
Liberty, SC

Share

Weather in September

September, the first month of the autumn in Liberty, is also a moderately hot month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 82.4°F (28°C).

Temperature

As Liberty enters September, the average high-temperature subtly lowers from the a hot 87.8°F (31°C) of August to a moderately hot 82.4°F (28°C). The average temperature in Liberty drops to an enjoyable 61.9°F (16.6°C) during the night in the month of September.

Heat index

September's mean heat index is estimated at a hot 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the 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 are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.38" (35mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September in Liberty 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 in Liberty is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 5 transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Liberty in September?

The average high-temperature and low-temperature in Liberty, South Carolina, during September are 82.4°F (28°C) and 61.9°F (16.6°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September in Liberty?

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

What is the driest month in Liberty?

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.38" (35mm) of precipitation.

How many days does it rain in September in Liberty?

In Liberty, South Carolina, in September, it is raining for 11.9 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow in Liberty?

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

What is the average length of the day in September in Liberty?

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

When is the sunrise / sunset in September in Liberty?

On the first day of September in Liberty, 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 many hours of sunshine does Liberty have in September?

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

How high is the UV index in September in Liberty?

The average daily maximum UV index in September in Liberty, South Carolina, is 5. A UV Index of 3 to 5 symbolizes a medium 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
Liberty, SC

Average temperature in September - Liberty, SC
  • Average high temperature in September: 82.4°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in September
Liberty, SC

Average pressure in September - Liberty, SC
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in September
Liberty, SC

Average wind speed in September - Liberty, SC
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Liberty, SC

Average humidity in September - Liberty, 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
Liberty, SC

Average rainfall in September - Liberty, SC
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.38").

Average rainfall days in September
Liberty, SC

Average rainfall days in September - Liberty, SC
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (7.8 days).

Average snowfall in September
Liberty, SC

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

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Liberty, SC

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

The months with the highest number of snowfall days are January and February (1 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
Liberty, SC

Average daylight in September / Average sunshine in September - Liberty, 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 30min).

Average sunshine days in September
Liberty, SC

Average sunshine days in September - Liberty, SC
  • Average sunshine days in September: 16 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in September
Liberty, SC

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

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

Average cloud cover in September
Liberty, SC

Average cloud cover in September - Liberty, 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
Liberty, SC

Average visibility in September - Liberty, 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).

Liberty, South Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location