Columbia
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Columbia, SC

The US State House of South Carolina, in Columbia, with the Wade Hampton Statue
The US State House of South Carolina, in Columbia, with the Wade Hampton Statue
The last month of the summer, August, is another tropical month in Columbia, South Carolina, with average temperature varying between 90.7°F (32.6°C) and 71.1°F (21.7°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still hot 90.7°F (32.6°C). In August, the average low-temperature is 71.1°F (21.7°C).

Heat index

In August, the average heat index is appraised at an extremely hot 113°F (45°C). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, pregnancy, metabolic differences, and wind 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

August is the most humid month in Columbia, with an average relative humidity of 76.5%.

Rainfall

In Columbia, during August, the rain falls for 10.5 days and regularly aggregates up to 5.3" (133.6mm) of precipitation. In Columbia, South Carolina, during the entire year, the rain falls for 106.7 days and collects up to 44.6" (1132.4mm) of precipitation.

Snowfall

In Columbia snow does not fall in April through November.

Daylight

In Columbia, the average length of the day in August is 13.4h.

Sunshine

In Columbia, the average sunshine is 8.5h.

UV index

June through August, with an average maximum UV index of 10, are months with the highest UV index in Columbia. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 10 transform into the following instructions:
Take extra precautions. Protection against sun damage is required. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in August in Columbia?

The average high-temperature, in August, is 90.7°F (32.6°C), while the average low-temperature is 71.1°F (21.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines relative humidity and air temperature, in August is appraised at 113°F (45°C).

What is the most humid month in Columbia?

The most humid month is August, with an average relative humidity of 76.5%.

What is the average humidity in August in Columbia?

In August, the average relative humidity in Columbia, South Carolina, is 76.5%.

How much does it rain in Columbia in August?

In August, in Columbia, the rain falls for 10.5 days. Throughout August, 5.3" (133.6mm) of precipitation is accumulated.

When it does not snow in Columbia?

April through November are months without snowfall in Columbia, South Carolina.

What is the average length of the day in August in Columbia?

In August, the average length of the day in Columbia is 13.4h.

How long on average sun shines in August in Columbia?

In August, the average sunshine in Columbia is 8.5h.

When is the highest UV index in Columbia?

June through August, with an average maximum UV index of 10, are months with the highest UV index in Columbia.

What is the UV index reading in August in Columbia?

In Columbia, South Carolina, the average daily maximum UV index in August is 10. A UV Index value of 8 to 10 symbolizes a very high health threat from unprotected exposure to the UV radiation.
Average temperature in August - Columbia, SC
  • Average high temperature in August: 90.7°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (56°F).

  • Average low temperature in August: 71°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (33.7°F).

Average humidity in August - Columbia, SC
  • Average humidity in August: 76.5%

The month with the highest relative humidity is August (76.5%).
The month with the lowest relative humidity is April (62.1%).

Average rainfall in August - Columbia, SC
  • Average rainfall in August: 5.3"

The wettest month (with the highest rainfall) is July (5.5").
The driest month (with the lowest rainfall) is April (2.6").

Average rainfall days in August - Columbia, SC
  • Average rainfall days in August: 10.5 days

The month with the highest number of rainy days is July (11.8 days).
The month with the lowest number of rainy days is October (7 days).

Average snowfall in August - Columbia, SC
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.8").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August - Columbia, SC
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.5 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in August / Average sunshine in August - Columbia, SC
  • Average daylight in August: 13.4h

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

  • Average sunshine in August: 8.5h

The month with most sunshine is May (Average sunshine: 9.4h).
Months with least sunshine are January and December (Average sunshine: 5.6).

Average UV index in August - Columbia, SC
  • Average UV index in August: 10

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).