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 — and sunset is at 06:08 PM.

Days 1–4 Weather Summary

Moderate rain (total 19mm), heaviest on Sat night. Icy conditions (max 22°C on Fri afternoon, min 0°C on Sun night). Winds increasing (calm on Sat night, strong winds from the WNW by Sun afternoon).

Days 5–7 Weather Summary

Mostly dry. Icy conditions (max 16°C on Thu morning, min 0°C on Mon night). Winds decreasing (fresh winds from the NW on Mon afternoon, light winds from the WSW by Tue morning).

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Thu night. Warm (max 21°C on Sun morning, min 13°C on Fri night). Winds decreasing (fresh winds from the SSW on Thu night, calm by Sat night).

Days 11–13 Weather Summary

Some drizzle, heaviest during Mon night. Freeze-thaw conditions (max 20°C on Sun afternoon, min 0°C on Mon night). Mainly fresh winds.

Fri
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
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
night
Wave Height Map
High Tide
10:07PM1.66m
10:29AM1.49m
10:57PM1.67m
11:18AM1.41m
11:53PM1.65m
12:15PM1.33m
00:57AM1.62m
1:22PM1.27m
2:06AM1.60m
2:35PM1.25m
3:18AM1.61m
3:48PM1.29m
4:26AM1.66m
4:54PM1.37m
5:27AM1.71m
5:54PM1.48m
6:22AM1.74m
6:47PM1.57m
7:10AM1.76m
7:34PM1.64m
7:55AM1.73m
8:19PM1.69m
8:35AM1.68m
9:00PM1.69m
9:13AM1.60m
9:39PM1.67m
9:50AM1.51m
Low Tide
3:57PM-0.11m
4:24AM-0.04m
4:40PM-0.09m
5:15AM0.04m
5:29PM-0.05m
6:13AM0.11m
6:26PM-0.01m
7:20AM0.18m
7:31PM0.03m
8:32AM0.20m
8:42PM0.03m
9:42AM0.17m
9:51PM-0.01m
10:46AM0.11m
10:54PM-0.07m
11:42AM0.02m
11:52PM-0.14m
12:31PM-0.05m
00:44AM-0.18m
1:16PM-0.10m
1:31AM-0.20m
1:57PM-0.12m
2:16AM-0.17m
2:36PM-0.12m
2:58AM-0.12m
3:13PM-0.08m
3:40AM-0.05m
3:50PM-0.02m
Wave
height (m) 
direction
period (s) 
0.9
S
5
0.7
SSE
5
0.6
S
5
0.6
S
5
0.5
S
5
0.8
S
5
1.2
W
4
0.9
WNW
4
0.9
WNW
4
0.8
WNW
4
0.6
NNW
3
0.3
E
6
0.4
SW
2
0.6
SW
4
0.9
SW
4
1.1
SSW
5
0.9
SSW
5
0.8
S
5
1
S
5
1.4
S
6
1.1
S
7
0.9
SSE
7
0.6
S
6
0.8
E
4
0.7
ESE
7
0.6
SE
8
0.4
SE
7
0.5
SE
8
0.5
SE
9
1.6
E
7
1.6
E
8
1.4
ESE
9
1.5
ESE
9
1.4
ESE
8
0.9
ESE
8
1
ESE
8
0.9
ESE
8
0.8
ESE
9
0.7
SE
9
0.7
SE
10
0.7
SE
9
1.6
E
6
1.7
ESE
8
1.3
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
SE
8
rain showers
rain showers
light rain
light rain
mod rain
rain showers
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
clear
clear
part cloud
cloud
cloud
heavy rain
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
rain shwrs
rain shwrs
light rain
light rain
mod rain
rain shwrs
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
clear
some clouds
clear
some clouds
some clouds
cloudy
cloudy
rain shwrs
clear
clear
some clouds
cloudy
cloudy
heavy rain
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
 km/h
25
SW
15
SW
10
WSW
10
ENE
10
SW
30
WNW
40
WNW
30
NW
35
NW
30
NW
20
NW
10
NW
20
SSW
20
WSW
25
SW
25
SW
20
SW
25
SSW
30
SSW
30
SW
20
SW
15
SW
10
NNE
20
ENE
10
ENE
10
SW
10
N
10
SE
20
NE
35
NE
30
NE
25
NNE
30
NE
30
ENE
15
ENE
15
SSE
10
S
5
W
5
NW
5
WSW
15
NE
40
ENE
35
ENE
20
E
20
ESE
15
ESE
15
SE
 mm 
1
2
2
3
9
2
2
1
13
max°C
22
21
19
16
16
14
13
6
6
8
4
5
7
9
11
12
14
16
16
17
17
19
18
14
16
16
21
20
18
7
3
3
8
9
17
18
18
16
18
19
17
9
10
16
18
19
20
Moonrise
9:04
9:39
10:19
11:07
12:04
1:09
2:18
3:28
4:36
5:42
6:44
7:45
8:44
9:43
10:42
Moonset
9:41
10:49
11:59
1:10
2:19
3:23
4:19
5:05
5:44
6:17
6:46
7:14
7:40
8:07
8:36
Sunrise
6:56
6:54
6:54
6:52
6:50
6:50
6:48
6:48
6:47
6:46
6:43
6:43
6:41
6:41
6:39
Sunset
6:08
6:09
6:10
6:10
6:12
6:13
6:14
6:15
6:15
6:15
6:16
6:17
6:19
6:19
6:20
6:21
Today's sea temperature in Fort Sumter, Charleston Harbor is
10.7° C
(Statistics for 20 Feb 1981-2005 – mean: 19.5 max: 21.5 min: 17.4°C)
Issued (local time): 6 pm Friday 20 Feb 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest