World Resorts USA Charleston Weather

Charleston 7 Days Forecast

05.08
wed
Day
86°F
NE 9 mph
Precip.
10%
Night
82°F
NW 7 mph
Precip.
9%
06.08
thu
Day
88°F
N 7 mph
Precip.
57%
Night
81°F
N 7 mph
Precip.
13%
07.08
fri
Day
88°F
N 7 mph
Precip.
10%
Night
81°F
N 7 mph
Precip.
8%
08.08
sat
Day
88°F
N 8 mph
Precip.
12%
Night
81°F
N 8 mph
Precip.
9%
09.08
sun
Day
90°F
N 8 mph
Precip.
9%
Night
82°F
N 9 mph
Precip.
9%
10.08
mon
Day
88°F
NE 11 mph
Precip.
6%
Night
82°F
NE 11 mph
Precip.
36%
11.08
tue
Day
91°F
NE 10 mph
Precip.
4%
Night
84°F
NE 9 mph
Precip.
22%

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 84.1°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.0°F.

Air temperature in Charleston, °F

Precipitation total in Charleston, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Charleston

Sunniest months:
April 16 days
May 16 days
October 15 days
Warmest months:
July 89.5 °F
August 87.7 °F
June 86.2 °F
Warmest sea temp:
July 83.8 °F
August 83.7 °F
September 81.0 °F
Coldest months:
January 55.7 °F
February 59.9 °F
December 60.5 °F
Rainiest months:
August 9 days
July 8 days
September 6 days
Windiest months:
March 9.5 mph
April 9.4 mph
February 9.0 mph

Charleston on a weather map

Current weather
14:11
Charleston
+84°F
NE 6 mph
Feels like: +95°F
Precip.: 15%
Places in USA:
Name
°F
Boston
+90°F
Washington
+84°F
Hawaii
+79°F
Las Vegas
+117°F
Los Angeles
+88°F
Miami
+88°F
Maui
+75°F
Myrtle Beach
+81°F
New York
+81°F
San Diego
+77°F
San Francisco
+61°F
Santa Monica
+77°F
Sarasota
+88°F
Houston
+97°F
Chicago
+79°F
all places
24 Hours Forecast
Charleston
Local time: 14:11
August 05, wednesday
1500
84°F
NE
6 mph
1800
84°F
N
8 mph
2100
81°F
N
6 mph
August 06, thursday
0000
82°F
NW
7 mph
0300
79°F
N
6 mph
0600
77°F
N
6 mph
0900
82°F
N
5 mph
1200
88°F
N
7 mph
Units of measurement: °C / °F