July weather forecast
Columbia, SC

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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 sets the stage for the hottest month in Columbia with an average high of 91.6°F (33.1°C). A significant surge in rainfall days from June to July keeps vegetation adequately moisturized. Despite the high temperatures, July continues to offer extensive daylight hours to take advantage of. Dwindling wind speeds further accentuate the hot conditions. Meanwhile, the UV index reaches an annual peak signifying the height of summer.

Temperature

In Columbia, South Carolina, the average temperatures in July are the highest, with a peak at 91.6°F (33.1°C) and a low of 73.8°F (23.2°C).

Heat index

During July, the heat index is evaluated at an extremely hot 109.4°F (43°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

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

Rainfall

In Columbia, during July, the rain falls for 16.3 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 141.3 rainfall days, and 25.28" (642mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall.

Daylight

In Columbia, South Carolina, the average length of the day in July is 14h and 10min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:39 pm. On the last day of July, in Columbia, sunrise is at 6:35 am and sunset at 8:25 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in July suggests the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the hottest time of year in Columbia?

Columbia's warmest weather arrives in July, when temperatures average a high of 91.6°F (33.1°C) and a low of 73.8°F (23.2°C).

How hot does it get in Columbia in July?

The high-temperature in Columbia, South Carolina, during July is 91.6°F (33.1°C) and the low-temperature is 73.8°F (23.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is evaluated at 109.4°F (43°C).

What are the least humid months in Columbia?

The 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 Columbia, South Carolina, the average relative humidity in July 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.

How many hours of daylight does Columbia have in July?

The average day length in July in Columbia, South Carolina, is 14h and 10min.

What time are sunrise and sunset in July in Columbia?

On the first day of July in Columbia, sunrise is at 6:16 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:25 pm EDT.

What month has the most sunshine in Columbia?

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

How many hours of sunshine does Columbia have in July?

The average sunshine duration in July is 10.7h.

When is the highest UV index in Columbia?

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

What is the UV index reading in July in Columbia?

In July, the average daily maximum UV index in Columbia, South Carolina, is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
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 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"Hg

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

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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%).
The 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").
The 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).
The 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: 14h and 1min

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 July: 10h and 4min

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 18min).

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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

The months with the highest UV index are June, July and August (UV index 7).
The 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

The months with the most cloud cover are February and December (Cloud cover 42).
The 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

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).

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Columbia, South Carolina, USA

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