July weather forecast
Charleston Heights, SC

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Weather in July

July, the same as June, in Charleston Heights, South Carolina, is a hot summer month, with temperature in the range of an average low of 76.5°F (24.7°C) and an average high of 89.6°F (32°C).

Temperature

The highest temperatures are recorded in July, with averages reaching a high of 89.6°F (32°C) and a low of 76.5°F (24.7°C).

Heat index

In July, the average heat index is evaluated at a blistering 107.6°F (42°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In July, the average relative humidity is 74%.

Rainfall

In July, the rain falls for 21.2 days. Throughout July, 2.68" (68mm) of precipitation is accumulated. Throughout the year, there are 154.4 rainfall days, and 23.43" (595mm) of precipitation is accumulated.

Snowfall

In Charleston Heights, snow does not fall in March through November.

Daylight

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

Sunshine

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

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during July translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

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

How hot does it get in July?

An average high-temperature, in July, in Charleston Heights, is 89.6°F (32°C) and the average low-temperature is 76.5°F (24.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in July is evaluated at 107.6°F (42°C).

What is the average humidity in July in Charleston Heights?

The average relative humidity in July is 74%.

How much does it rain in July?

In Charleston Heights, during July, the rain falls for 21.2 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

In Charleston Heights, snow does not fall in March through November.

What is the average length of the day in July?

In July, the average day length in Charleston Heights is 14h and 4min.

What time are sunrise and sunset in July?

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?

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

How many hours of sunshine does Charleston Heights have in July?

The average sunshine duration in July is 10.9h.

What are the months with the highest UV index?

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?

The average daily maximum UV index in July is 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Charleston Heights, SC

Average temperature in July - Charleston Heights, 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).

Average pressure in July
Charleston Heights, SC

Average pressure in July - Charleston Heights, 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).

Average wind speed in July
Charleston Heights, SC

Average wind speed in July - Charleston Heights, 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).

Average humidity in July
Charleston Heights, SC

Average humidity in July - Charleston Heights, 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%).

Average rainfall in July
Charleston Heights, SC

Average rainfall in July - Charleston Heights, 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").

Average rainfall days in July
Charleston Heights, SC

Average rainfall days in July - Charleston Heights, 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).

Average snowfall days in July
Charleston Heights, SC

Average snowfall days in July - Charleston Heights, 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).

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

Average daylight in July / Average sunshine in July - Charleston Heights, SC
  • Average daylight in July: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in July: 10h and 5min

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).

Average sunshine days in July
Charleston Heights, SC

Average sunshine days in July - Charleston Heights, 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).

Average UV index in July
Charleston Heights, SC

Average UV index in July - Charleston Heights, 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).

Average cloud cover in July
Charleston Heights, SC

Average cloud cover in July - Charleston Heights, 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).

Average visibility in July
Charleston Heights, SC

Average visibility in July - Charleston Heights, 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).

Charleston Heights, South Carolina, USA

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