Measurements:
°C
°F
CURRENT WEATHER
09:38
Charleston
84°F
SW 14 mph
Feels like: 90°F
Precip: 15%
World Resorts USA Charleston Weather

14 Day Weather Forecast

09.15
tue
DAY
88°F
W 15 mph
precip
4%
NIGHT
78°F
W 8 mph
precip
5%
09.16
wed
DAY
88°F
SW 10 mph
precip
8%
NIGHT
78°F
W 7 mph
precip
15%
09.17
thu
DAY
86°F
SW 9 mph
precip
2%
NIGHT
78°F
W 5 mph
precip
27%
09.18
fri
DAY
90°F
W 7 mph
precip
11%
NIGHT
80°F
N 3 mph
precip
12%
09.19
sat
DAY
90°F
NW 6 mph
precip
18%
NIGHT
82°F
N 6 mph
precip
27%
09.20
sun
DAY
90°F
W 4 mph
precip
22%
NIGHT
82°F
N 5 mph
precip
16%
09.21
mon
DAY
88°F
N 4 mph
precip
22%
NIGHT
80°F
N 6 mph
precip
24%
09.22
tue
DAY
88°F
N 8 mph
precip
24%
NIGHT
80°F
N 6 mph
precip
62%
09.23
wed
DAY
92°F
N 9 mph
precip
7%
NIGHT
82°F
NE 5 mph
precip
26%
09.24
thu
DAY
82°F
NW 2 mph
precip
20%
NIGHT
80°F
NE 6 mph
precip
74%
09.25
fri
DAY
86°F
NW 9 mph
precip
63%
NIGHT
78°F
NW 3 mph
precip
31%
09.26
sat
DAY
84°F
W 8 mph
precip
28%
NIGHT
72°F
SW 9 mph
precip
86%
09.27
sun
DAY
66°F
S 10 mph
precip
80%
NIGHT
66°F
S 8 mph
precip
51%
09.28
mon
DAY
74°F
SW 9 mph
precip
45%
NIGHT
72°F
SW 7 mph
precip
58%

Charleston Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Charleston was 87.6°F. The maximum and minimum values were 85.8°F and 89.4°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 91.9 °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
more details
USA Resorts:
NAME
F°
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
all resorts
24 Hours Weather Forecast
Charleston
Local time: 09:38
15 sep, tuesday
1200 88°F
W
15 mph
1500 88°F
W
14 mph
1800 84°F
W
12 mph
2100 80°F
W
9 mph
16 sep, wednesday
0000 78°F
W
8 mph
0300 76°F
SW
8 mph
0600 74°F
SW
7 mph
0900 78°F
SW
9 mph