Measurements:
°C
°F
CURRENT WEATHER
14:15
Charleston
88°F
NW 6 mph
Feels like: 100°F
Precip: 17%
World Resorts USA Charleston Weather

7 Day Weather Forecast

07.15
wed
DAY
94°F
W 6 mph
precip
6%
NIGHT
82°F
NE 4 mph
precip
11%
07.16
thu
DAY
94°F
N 6 mph
precip
3%
NIGHT
86°F
NE 7 mph
precip
10%
07.17
fri
DAY
98°F
NE 6 mph
precip
2%
NIGHT
86°F
N 9 mph
precip
9%
07.18
sat
DAY
98°F
NE 9 mph
precip
4%
NIGHT
88°F
NE 9 mph
precip
9%
07.19
sun
DAY
98°F
NE 11 mph
precip
3%
NIGHT
88°F
NE 11 mph
precip
8%
07.20
mon
DAY
98°F
NE 9 mph
precip
2%
NIGHT
88°F
E 3 mph
precip
6%
07.21
tue
DAY
98°F
NE 4 mph
precip
2%
NIGHT
88°F
NE 12 mph
precip
11%

Charleston Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Charleston was 29.7°F. The maximum and minimum values were 29.1°F and 30.3°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 93.8 °F
August 91.8 °F
June 90.2 °F
Warmest sea temperature:
August 87.5 °F
July 87.4 °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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