July 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

Weather in July

July, like June, is a hot summer month in Columbia, South Carolina, with average temperature ranging between min 73.8°F (23.2°C) and max 91.6°F (33.1°C).

Temperature

July is the warmest month, with an average high-temperature of 91.6°F (33.1°C) and an average low-temperature of 73.8°F (23.2°C).

Heat index

In July, the average heat index is estimated at a scorching 110.1°F (43.4°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. With the 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', 'feels like', 'apparent temperature', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like differences in body mass, height, and shape, pregnancy, clothing, and activity influence one's weather impression. 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. 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

Months with the lowest humidity in Columbia, South Carolina, are January, July and November, with an average relative humidity of 69%.

Rainfall

In Columbia, it is raining for 16.3 days, with typically 2.09" (53mm) of accumulated precipitation. In Columbia, during the entire year, the rain falls for 141.3 days and collects up to 25.28" (642mm) of precipitation.

Snowfall

In Columbia snow does not fall in March through November.

Daylight

The average length of the day in Columbia, South Carolina, is 14.2h.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in July interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye 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.
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FAQ

What is the warmest month in Columbia?

The warmest month in Columbia, South Carolina, is July, with an average high-temperature of 91.6°F (33.1°C) and an average low-temperature of 73.8°F (23.2°C).

What is the temperature in July in Columbia?

In Columbia, South Carolina, in July, the average high-temperature is 91.6°F (33.1°C), and the average low-temperature is 73.8°F (23.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is calculated to 110.1°F (43.4°C).

What are the least humid months in Columbia?

Months with the lowest humidity in Columbia are January, July and November, with an average relative humidity of 69%.

What is the average humidity in July in Columbia?

In July, the average relative humidity in Columbia, South Carolina, is 69%.

How many days does it rain in July in Columbia?

In Columbia, South Carolina, during July, the rain falls for 16.3 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Columbia?

March through November are months without snowfall.

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

In July, the average length of the day in Columbia is 14.2h.

What month has the most sunshine in Columbia?

The month with the most sunshine in Columbia is July, with an average of 10.7h of sunshine.

How long on average sun shines in July in Columbia?

In Columbia, South Carolina, the average sunshine in July is 10.7h.

What are the months with the highest UV index in Columbia?

Months with the highest UV index in Columbia are June through August, with an average maximum UV index of 7.

What is the UV index reading in July in Columbia?

In Columbia, South Carolina, the average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in July
Columbia, SC

Average temperature in July - Columbia, SC
  • Average high temperature in July: 91.6°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (52.9°F).

  • Average low temperature in July: 73.8°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in July
Columbia, SC

Average pressure in July - Columbia, SC
  • Average pressure in July: 29.99"

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 July
Columbia, SC

Average wind speed in July - Columbia, SC
  • Average wind speed in July: 6.1mph

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

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Average humidity in July
Columbia, SC

Average humidity in July - Columbia, SC
  • Average humidity in July: 69%

The month with the highest relative humidity is December (74%).
Months with the lowest relative humidity are January, July and November (69%).

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Average rainfall in July
Columbia, SC

Average rainfall in July - Columbia, SC
  • Average rainfall in July: 2.09"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in July
Columbia, SC

Average rainfall days in July - Columbia, SC
  • Average rainfall days in July: 16.3 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (7.3 days).

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Average snowfall in July
Columbia, SC

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

The month with the highest snowfall is February (0.47").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in July
Columbia, SC

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

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

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Average daylight in July /
Average sunshine in July
Columbia, SC

Average daylight in July / Average sunshine in July - Columbia, SC
  • Average daylight in July: 14.2h

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 July: 10.7h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in July
Columbia, SC

Average sunshine days in July - Columbia, SC
  • Average sunshine days in July: 11.7 days

The month with the most sunshine days is October (22.7 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in July
Columbia, SC

Average UV index in July - Columbia, SC
  • Average UV index in July: 7

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 July
Columbia, SC

Average cloud cover in July - Columbia, SC
  • Average cloud cover in July: 30

Months with the most cloud cover are February and December (Cloud cover 42).
Months with the least cloud cover are June and October (Cloud cover 29).

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Average visibility in July
Columbia, SC

Average visibility in July - Columbia, SC
  • Average visibility in July: 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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