29.05
fri
fri
Day
81°F
W 13 mph
Precip.
0%
0%
Night
77°F
NW 9 mph
Precip.
0%
0%
30.05
sat
sat
Day
73°F
S 6 mph
Precip.
87%
87%
Night
72°F
W 5 mph
Precip.
0%
0%
31.05
sun
sun
Day
77°F
W 14 mph
Precip.
0%
0%
Night
73°F
NW 13 mph
Precip.
86%
86%
01.06
mon
mon
Day
75°F
NW 13 mph
Precip.
100%
100%
Night
70°F
S 9 mph
Precip.
88%
88%
02.06
tue
tue
Day
79°F
SW 14 mph
Precip.
0%
0%
Night
68°F
SW 6 mph
Precip.
0%
0%
03.06
wed
wed
Day
75°F
SW 7 mph
Precip.
0%
0%
Night
70°F
NE 9 mph
Precip.
0%
0%
04.06
thu
thu
Day
82°F
E 8 mph
Precip.
0%
0%
Night
73°F
NE 9 mph
Precip.
26%
26%
sea water
temperature
temperature
| Charleston |
monthly
weather
weather
| Charleston |
current
weather
weather
| Charleston |
14 days
forecast
forecast
| Charleston |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 73.4°F. The highest and lowest sea temperatures during the month were 82.4°F and 68.5°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 84.4°F and 76.3°F.
Air temperature in Charleston, °F
Precipitation total in Charleston, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 23:45
May 30, saturday
0000
77°F
NW
9 mph
9 mph
0300
75°F
N
6 mph
6 mph
0600
73°F
E
8 mph
8 mph
0900
73°F
S
7 mph
7 mph
1200
73°F
S
6 mph
6 mph
1500
73°F
S
4 mph
4 mph
1800
75°F
W
3 mph
3 mph
2100
72°F
W
3 mph
3 mph
