World Resorts

USA

Charleston Weather

Charleston 14 Days Forecast

25.08
tue

Day

84°F

N 6 mph

Precip.
21%

Night

79°F

W 4 mph

Precip.
22%

26.08
wed

Day

91°F

N 6 mph

Precip.
19%

Night

79°F

NE 6 mph

Precip.
20%

27.08
thu

Day

91°F

NE 8 mph

Precip.
2%

Night

79°F

N 6 mph

Precip.
12%

28.08
fri

Day

91°F

NE 8 mph

Precip.
6%

Night

77°F

S 2 mph

Precip.
34%

29.08
sat

Day

90°F

NW 7 mph

Precip.
7%

Night

79°F

NW 4 mph

Precip.
25%

30.08
sun

Day

90°F

NW 7 mph

Precip.
12%

Night

82°F

N 8 mph

Precip.
15%

31.08
mon

Day

91°F

N 7 mph

Precip.
10%

Night

81°F

NE 9 mph

Precip.
10%

01.09
tue

Day

91°F

NE 9 mph

Precip.
2%

Night

82°F

NE 11 mph

Precip.
9%

02.09
wed

Day

93°F

NE 9 mph

Precip.
2%

Night

77°F

NE 12 mph

Precip.
34%

03.09
thu

Day

88°F

SE 7 mph

Precip.
3%

Night

79°F

NW 6 mph

Precip.
22%

04.09
fri

Day

77°F

SE 4 mph

Precip.
16%

Night

82°F

N 12 mph

Precip.
19%

05.09
sat

Day

84°F

E 9 mph

Precip.
14%

Night

77°F

E 6 mph

Precip.
27%

06.09
sun

Day

82°F

S 10 mph

Precip.
1%

Night

73°F

SW 5 mph

Precip.
4%

07.09
mon

Day

82°F

W 4 mph

Precip.
4%

Night

75°F

N 6 mph

Precip.
4%

sea water
temperature

Charleston

monthly
weather

Charleston

current
weather

Charleston

7 days
forecast

Charleston

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May
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September
October
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Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 85.6°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 78.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 75.4°F.