Fort Sumter, Charleston Harbor Sea Conditions and Tide Table

Fort Sumter, Charleston Harbor Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 06:15 AM and sunset is at 08:16 PM.

Days 1–3 Weather Summary

Moderate rain (total 12mm), heaviest on Mon night. Warm air temperatures (max 27°C on Wed afternoon, min 25°C on Mon morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 13mm), heaviest on Sat night. Warm air temperatures (max 29°C on Thu afternoon, min 20°C on Sat night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 5mm), mostly falling on Sun morning. Warm (max 25°C on Tue afternoon, min 15°C on Sun afternoon). Winds decreasing (fresh winds from the NE on Sun morning, light winds from the NNE by Mon night).

Days 10–12 Weather Summary

Some drizzle, heaviest during Fri morning. Warm (max 26°C on Wed afternoon, min 20°C on Wed morning). Wind will be generally light.

Days 13–16 Weather Summary

Moderate rain (total 15mm), heaviest on Tue night. Warm (max 31°C on Mon afternoon, min 22°C on Tue night). Wind will be generally light.

Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tue
9
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
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High Tide
4:55PM1.62m
5:03AM1.47m
5:45PM1.67m
5:52AM1.43m
6:32PM1.72m
6:39AM1.40m
7:15PM1.75m
7:22AM1.38m
7:56PM1.76m
8:03AM1.36m
8:36PM1.76m
8:42AM1.34m
9:13PM1.73m
9:19AM1.33m
9:49PM1.71m
9:55AM1.31m
10:25PM1.67m
10:31AM1.29m
11:00PM1.63m
11:09AM1.29m
11:36PM1.60m
11:51AM1.30m
00:16AM1.56m
12:39PM1.34m
1:00AM1.52m
1:33PM1.39m
1:50AM1.48m
2:31PM1.46m
Low Tide
10:22AM0.08m
10:55PM0.18m
11:10AM0.06m
11:48PM0.16m
11:56AM0.05m
00:37AM0.14m
12:39PM0.04m
1:22AM0.12m
1:20PM0.04m
2:05AM0.11m
2:00PM0.05m
2:46AM0.11m
2:39PM0.06m
3:25AM0.12m
3:16PM0.09m
4:04AM0.14m
3:54PM0.12m
4:44AM0.16m
4:31PM0.15m
5:23AM0.18m
5:10PM0.19m
6:03AM0.19m
5:54PM0.22m
6:45AM0.19m
6:43PM0.26m
7:31AM0.17m
7:40PM0.28m
8:21AM0.14m
Wave
Height (m)
Direction
Period (s)
1.1
SE
7
1
SE
7
1.1
SE
6
1.1
SE
7
1.1
SE
7
1
SE
8
1
SE
8
1
SE
8
1
SE
9
0.8
SE
9
0.8
SE
8
0.7
SE
8
0.6
SE
8
0.6
SE
8
0.6
SE
8
0.7
SE
8
0.9
S
5
0.9
S
5
1.4
E
5
1.5
E
7
1.4
ESE
8
1.4
SE
9
1
SE
9
0.7
SE
8
0.6
ESE
8
0.6
ESE
8
0.6
ESE
8
0.5
SE
8
0.6
SE
8
0.6
SE
8
0.4
SE
8
0.5
SE
8
0.4
SE
8
0.6
SE
8
0.7
SE
8
0.6
SE
8
0.6
SE
7
0.6
SE
7
0.6
SE
8
0.6
SE
8
0.8
SE
5
0.7
SSW
4
0.6
S
5
0.7
S
4
0.5
SE
8
0.5
SE
8
0.8
S
5
thunderstorm
thunderstorm
rain showers
thunderstorm
clear
clear
clear
clear
thunderstorm
thunderstorm
cloud
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
cloud
mod rain
light rain
light rain
rain showers
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
part cloud
rain showers
part cloud
rain showers
risk tstorm
risk tstorm
rain shwrs
risk tstorm
clear
clear
clear
clear
risk tstorm
risk tstorm
cloudy
some clouds
some clouds
risk tstorm
some clouds
risk tstorm
cloudy
mod rain
light rain
light rain
rain shwrs
cloudy
cloudy
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
risk tstorm
clear
clear
clear
clear
clear
clear
some clouds
risk tstorm
some clouds
some clouds
rain shwrs
some clouds
rain shwrs
km/h
20
S
25
S
25
S
25
SSW
25
S
20
S
25
SSW
25
SSW
20
SW
10
WNW
20
SSW
10
WSW
10
ESE
10
S
15
SSW
20
SW
20
WSW
15
W
35
NE
30
NNE
25
NE
25
NE
10
ENE
15
NNW
10
N
10
S
15
WSW
5
W
20
S
15
SW
5
S
20
SSE
5
S
10
E
20
ESE
5
ESE
10
E
20
SE
10
SW
10
SW
20
SW
20
SW
10
WSW
20
SSW
5
SSE
5
S
25
SSW
2
1
3
3
3
1
1
1
10
2
2
1
1
1
1
4
max °C
26
26
25
26
26
25
26
27
26
26
29
28
27
27
26
27
27
25
18
15
17
18
22
23
24
25
24
25
26
25
25
26
25
25
25
24
24
25
25
27
28
26
29
31
28
29
28
Moonrise
3:20
4:17
5:15
6:13
7:12
8:10
9:06
9:58
10:45
11:26
12:02
12:33
1:02
1:29
1:57
Moonset
2:49
3:15
3:41
4:10
4:42
5:18
5:59
6:47
7:39
8:36
9:34
10:34
11:33
12:32
1:32
2:34
Sunrise
6:15
6:13
6:13
6:13
6:13
6:13
6:11
6:11
6:11
6:11
6:11
6:11
6:11
6:11
6:11
6:11
Sunset
8:16
8:17
8:19
8:19
8:20
8:21
8:21
8:22
8:22
8:22
8:22
8:23
8:24
8:24
8:24
8:25
Today's sea temperature in Fort Sumter, Charleston Harbor is
25.3° C
(Statistics for 25 May 1981-2005 – mean: 24.3 max: 26.3 min: 22.9°C)
Issued (local time): 1 am Monday 25 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest