Charleston Weather in August

Averages By Month

August is Charleston’s hottest and rainiest month at the same time. Temperatures soar to a sizzling hot 88°F (31°C) meaning that the one or other rain shower may be very welcome to help cool down a bit (there are 9 rainy days on average in August). The minimum it will cool down to though is a still warm low of 76°F (24°C). Also, the Atlantic Ocean now reaches its warmest water temperature of 84°F (28°C). Look out for any forecasts regarding hurricanes.

August in Charleston is the time to explore all the beautiful beaches that it has to offer. Top of the list are Folly Beach, Isle of Palms and Sullivan’s Island. There are also plenty of things to do during the rainy hours from the South Carolina Aquarium to the Childrens’ Museum of the Lowcountry.

High and Low Temperature in August °F

Precipitation days in August °F

Current Weather Charleston

85°F clear sky
Local Time

Hourly 10 Days

Averages Charleston

  J F M A M J J A S O N D

High °F

57° 60° 66° 73° 79° 85° 88° 87° 83° 75° 67° 61°

Low °F

43° 45° 51° 59° 67° 74° 77° 76° 72° 62° 53° 46°


6h 7h 8h 9h 10h 9h 9h 8h 7h 7h 6h 6h

Rain days

6 5 6 5 5 7 8 9 7 4 4 6

Water F°

63 62 62 67 73 79 83 84 82 78 72 66

Charleston Weather by Month

Best Time to Visit Charleston

Thanks to its subtropical climate, Charleston is a great place to visit any time of the year. Weatherwise, spring and fall are a favourite due to the super pleasant and mild weather in these periods. Spring is a favourite for seeing the beautiful magnolia trees in their full bloom. Summers are hot and humid but a fantastic time to visit if you are after some splashing around in the warm Atlantic water. Fall, especially October, is the time to visit to avoid the crowd and get the best deals while winters are ideal for enjoying the mild weather outdoors.

Things to know about Charleston

Charleston- the Beauty of the South
Charleston gray suspension bridge
Charleston street palm trees buildings cars crosswalk
Many say that Charleston is even more beautiful than Savannah. Besides the beautiful historic center of town you will also find plenty of plantages surrounding the city. Many of those can also be visited. Three of the most famous plantages are highlighted below.

Charleston sunset rivers aerial view water samp
Charleston plantation
The city:
Charleston atreet blossoms historic buildings
Charleston classic house palm trees east bay st
Charleston church facade palm trees
Charleston rainbow row street trees houses night cars

Charleston Location

Other destinations by month

Terms & Conditions | Privacy Policy | Cookies | Imprint