Measurements:
°C
°F
Charleston
102°F
SE 3 mph
Feels like: 110°F
Precip: 1%
World Resorts USA Charleston Weather August Weather in Charleston

Charleston Weather: August

Average Day Temperature: 86.4°F
Average Night Temperature: 68.5°F
Number of Sunny Days: 9 days
Sunshine Hours: 13.0 - 14.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.3 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 95°F. The lowest night temperature was 53°F. The average values for day and night temperatures during August were 84.3°F и 68.7°F respectivly.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Charleston is 1.3 in.

Wind Speed in August, mph

The average wind speed in August is 3.9 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Charleston in August is 7.5 hours.

Best Time to Visit Charleston
The most sunny months:
September 15 days
October 15 days
November 12 days
The most warm months:
July 88.5 °F
August 86.4 °F
June 84.2 °F
The most cold months:
January 37.2 °F
February 42.7 °F
December 43.9 °F
The most rainy months:
July 4 days
February 3 days
May 3 days
The most windy months:
March 7 mph
April 6 mph
January 6 mph

Charleston on the Weather Map

USA Resorts:
NAME
Boston +92
Chicago +86
Hawaii +80
Houston +80
Las Vegas +120
Los Angeles +106
Maui +76
Miami +96
Myrtle Beach +96
New York +110
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Charleston
Local time: 15:10
15 jul, wednesday
1800 100°F
SE
2 mph
2100 88°F
E
2 mph
16 jul, thursday
0000 82°F
E
1 mph
0300 72°F
N
1 mph
0600 70°F
N
1 mph
0900 82°F
NE
2 mph
1200 94°F
SE
3 mph
1500 100°F
SE
3 mph