Measurements:
°C
°F
CURRENT WEATHER
17:54
Charleston
88°F
W 9 mph
Feels like: 94°F
Precip: 7%
World Resorts USA Charleston Weather

7 Day Weather Forecast

08.25
tue
DAY
88°F
N 6 mph
precip
21%
NIGHT
82°F
W 4 mph
precip
22%
08.26
wed
DAY
96°F
N 6 mph
precip
19%
NIGHT
82°F
NE 6 mph
precip
20%
08.27
thu
DAY
96°F
NE 8 mph
precip
2%
NIGHT
82°F
N 6 mph
precip
12%
08.28
fri
DAY
96°F
NE 8 mph
precip
6%
NIGHT
80°F
S 2 mph
precip
34%
08.29
sat
DAY
94°F
NW 7 mph
precip
7%
NIGHT
82°F
NW 4 mph
precip
25%
08.30
sun
DAY
94°F
NW 7 mph
precip
12%
NIGHT
86°F
N 8 mph
precip
15%
08.31
mon
DAY
96°F
N 7 mph
precip
10%
NIGHT
84°F
NE 9 mph
precip
10%

Charleston Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Charleston was 29.8°F. The maximum and minimum values were 29.1°F and 30.9°F respectively.

Charleston on the Weather Map

Best Time to Visit Charleston
The most sunny months:
April 16 days
May 16 days
October 15 days
The most warm months:
July 93.9 °F
August 91.8 °F
June 90.2 °F
Warmest sea temperature:
August 87.6 °F
July 87.6 °F
September 84.5 °F
The most cold months:
January 56.4 °F
February 61.0 °F
December 61.7 °F
The most rainy months:
August 9 days
July 8 days
September 6 days
The most windy months:
March 9 mph
April 9 mph
February 9 mph
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