Measurements:
°C
°F
CURRENT WEATHER
14:15
Charleston
80°F
N 14 mph
Feels like: 82°F
Precip: 0%
World Resorts USA Charleston Weather

7 Day Weather Forecast

04.23
thu
DAY
76°F
NE 7 mph
precip
0%
NIGHT
68°F
NE 10 mph
precip
0%
04.24
fri
DAY
80°F
N 10 mph
precip
0%
NIGHT
70°F
N 9 mph
precip
0%
04.25
sat
DAY
82°F
NE 9 mph
precip
0%
NIGHT
66°F
NE 3 mph
precip
100%
04.26
sun
DAY
78°F
SW 7 mph
precip
78%
NIGHT
68°F
W 16 mph
precip
0%
04.27
mon
DAY
70°F
SW 17 mph
precip
0%
NIGHT
70°F
W 11 mph
precip
62%
04.28
tue
DAY
80°F
NW 8 mph
precip
100%
NIGHT
70°F
N 6 mph
precip
29%
04.29
wed
DAY
78°F
E 12 mph
precip
21%
NIGHT
72°F
E 7 mph
precip
0%

Charleston Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Charleston was 19.4°F. The maximum and minimum values were 17.2°F and 21.0°F respectively.

Charleston on the Weather Map

Best Time to Visit Charleston
The most sunny months:
October 15 days
April 15 days
May 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
June 7 days
The most windy months:
March 9 mph
April 9 mph
February 9 mph
more details