July weather forecast
North Charleston, SC

Weather in July

July, like June, is another hot summer month in North Charleston, South Carolina, with an average temperature fluctuating between 76.5°F (24.7°C) and 89.6°F (32°C).

Temperature

The warmest month is July, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 76.5°F (24.7°C).

Heat index

In July, the average heat index is calculated to be a blistering 107.6°F (42°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With 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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, differences in body mass, height, and shape). 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in July is 74%.

Rainfall

In North Charleston, during July, the rain falls for 21.2 days and regularly aggregates up to 2.68" (68mm) of precipitation. In North Charleston, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In July, the average length of the day in North Charleston is 14h and 4min.
On the first day of July in North Charleston, sunrise is at 6:15 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:19 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.9h of sunshine.

UV index

The months with the highest UV index in North Charleston are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in July interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
[Resources]

FAQ

What is the warmest month in North Charleston?

July is the warmest month in North Charleston, South Carolina, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 76.5°F (24.7°C).

What is the temperature in July in North Charleston?

The average high-temperature, in July, is 89.6°F (32°C), while the average low-temperature is 76.5°F (24.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in July is calculated to be 107.6°F (42°C).

What is the average humidity in July in North Charleston?

In July, the average relative humidity in North Charleston, South Carolina, is 74%.

How many days does it rain in July in North Charleston?

In North Charleston, in July, it is raining for 21.2 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in North Charleston?

March through November are months without snowfall in North Charleston, South Carolina.

What is the average length of the day in July in North Charleston?

The average day length in July in North Charleston, South Carolina, is 14h and 4min.

When are sunrise and sunset in July in North Charleston?

On the first day of July, sunrise is at 6:15 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:19 pm EDT.

What month has the most sunshine in North Charleston?

With an average of 10.9h of sunshine, July has the most sunshine of the year in North Charleston.

How long on average sun shines in July in North Charleston?

In July, the average sunshine duration in North Charleston, South Carolina, is 10.9h.

When is the highest UV index in North Charleston?

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

What is the UV index intensity in July in North Charleston?

In July, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
North Charleston, SC

Average temperature in July - North Charleston, SC
  • Average high temperature in July: 89.6°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in July: 76.5°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

[Resources]

Average pressure in July
North Charleston, SC

Average pressure in July - North Charleston, SC
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

[Resources]

Average wind speed in July
North Charleston, SC

Average wind speed in July - North Charleston, SC
  • Average wind speed in July: 7mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

[Resources]

Average humidity in July
North Charleston, SC

Average humidity in July - North Charleston, SC
  • Average humidity in July: 74%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

[Resources]

Average rainfall in July
North Charleston, SC

Average rainfall in July - North Charleston, SC
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

[Resources]

Average rainfall days in July
North Charleston, SC

Average rainfall days in July - North Charleston, SC
  • Average rainfall days in July: 21.2 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

[Resources]

Average snowfall days in July
North Charleston, SC

Average snowfall days in July - North Charleston, SC
  • Average snowfall days in July: 0 days

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

[Resources]

Average daylight in July /
Average sunshine in July
North Charleston, SC

Average daylight in July / Average sunshine in July - North Charleston, SC
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 17min).
The month with the shortest days is December (Average daylight: 10h and 2min).

  • Average sunshine in July: 10h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

[Resources]

Average sunshine days in July
North Charleston, SC

Average sunshine days in July - North Charleston, SC
  • Average sunshine days in July: 6.9 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

[Resources]

Average UV index in July
North Charleston, SC

Average UV index in July - North Charleston, SC
  • Average UV index in July: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

[Resources]

Average cloud cover in July
North Charleston, SC

Average cloud cover in July - North Charleston, SC
  • Average cloud cover in July: 26

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

[Resources]

Average visibility in July
North Charleston, SC

Average visibility in July - North Charleston, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location