Sullivans Island Sea Conditions and Tide Table

Sullivans Island 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 06:47 AM and sunset is at 07:50 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 26°C on Sun afternoon, min 13°C on Sun night). Winds increasing (light winds from the SW on Sat morning, fresh winds from the N by Sun afternoon).

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Wed afternoon, min 13°C on Mon morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 22°C on Fri afternoon, min 19°C on Thu morning). Wind will be generally light.

Days 10–12 Weather Summary

Some drizzle, heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 10°C on Tue night). Mainly fresh winds.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Sat
2
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
High Tide
8:17AM1.64m
8:37PM1.97m
9:04AM1.61m
9:26PM1.99m
9:55AM1.57m
10:18PM1.97m
10:51AM1.51m
11:15PM1.91m
11:52AM1.46m
00:17AM1.83m
12:57PM1.43m
1:22AM1.75m
2:03PM1.43m
2:28AM1.68m
3:09PM1.46m
3:31AM1.64m
4:12PM1.53m
4:30AM1.61m
5:10PM1.61m
5:24AM1.59m
6:02PM1.69m
6:11AM1.58m
6:48PM1.76m
6:55AM1.56m
7:30PM1.80m
7:35AM1.54m
8:09PM1.82m
8:14AM1.51m
Low Tide
2:21PM-0.20m
3:07AM-0.13m
3:08PM-0.21m
3:58AM-0.12m
3:56PM-0.19m
4:50AM-0.07m
4:47PM-0.13m
5:46AM-0.00m
5:43PM-0.05m
6:46AM0.07m
6:45PM0.04m
7:49AM0.12m
7:53PM0.10m
8:52AM0.13m
9:02PM0.13m
9:52AM0.11m
10:07PM0.12m
10:46AM0.08m
11:07PM0.09m
11:35AM0.04m
00:02AM0.05m
12:20PM0.01m
00:52AM0.02m
1:02PM-0.00m
1:39AM0.01m
1:41PM0.00m
2:23AM0.01m
2:18PM0.02m
Wave
height (m) 
direction
period (s) 
0.6
S
5
0.7
SE
6
0.6
ESE
8
0.5
SE
8
0.6
ESE
8
0.7
SSE
4
0.7
S
5
0.9
N
4
1.1
ENE
5
0.8
ESE
8
0.7
ESE
8
0.6
ESE
8
0.5
ESE
7
0.5
ESE
7
0.4
ESE
7
0.4
ESE
7
0.5
SE
5
0.6
SE
4
0.5
SE
6
0.4
ESE
8
0.6
SSE
4
0.6
SE
5
0.6
SE
5
0.8
SE
7
0.8
SE
7
0.8
SE
7
0.8
SE
7
1
SSE
6
1
S
5
0.7
SE
6
0.7
W
3
0.8
WSW
4
0.7
WNW
3
0.6
W
3
0.7
SW
4
0.6
NW
3
0.4
NW
3
0.2
ESE
12
0.4
SW
3
0.9
SSW
4
0.9
SSW
5
1
S
5
0.6
S
5
0.8
SSW
4
0.5
S
4
0.3
ESE
10
0.8
SSW
4
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
cloud
clear
clear
cloud
cloud
clear
clear
rain showers
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
risk tstorm
clear
clear
clear
clear
clear
clear
cloudy
clear
clear
cloudy
cloudy
clear
clear
rain shwrs
clear
clear
some clouds
cloudy
some clouds
 km/h
10
SSW
20
S
10
SSW
15
SSW
20
S
15
SW
15
W
35
N
25
NE
15
NE
10
SE
15
WNW
15
ENE
15
ESE
10
SW
5
SW
20
S
15
SW
5
S
15
SSE
15
S
10
SE
15
ESE
15
SSE
15
S
20
S
20
SSW
20
SW
25
WSW
20
WNW
30
WNW
35
W
30
WNW
30
WNW
25
WNW
20
NW
20
NW
15
NNW
20
S
30
SSW
30
SSW
25
SW
15
W
25
SW
25
NNW
20
WSW
30
W
 mm 
1
1
max°C
23
25
24
24
24
22
25
26
14
16
18
19
18
19
20
20
21
21
21
21
21
21
22
22
22
22
22
22
27
26
18
23
21
15
18
17
14
20
19
20
21
21
19
22
21
17
23
Moonrise
6:34
7:12
7:56
8:50
9:52
11:00
12:10
1:19
2:24
3:26
4:26
5:24
6:22
7:21
8:20
Moonset
8:25
9:40
10:55
12:06
1:09
2:01
2:45
3:20
3:51
4:19
4:45
5:11
5:38
6:07
6:40
Sunrise
6:47
6:46
6:45
6:43
6:43
6:41
6:41
6:39
6:37
6:37
6:35
6:35
6:33
6:33
6:31
6:31
Sunset
7:50
7:51
7:52
7:52
7:52
7:53
7:53
7:54
7:55
7:57
7:57
7:58
7:59
8:00
8:00
8:00
Today's sea temperature in Sullivans Island is
20.0° C
(Statistics for 17 Apr 1981-2005 – mean: 20.2 max: 22.5 min: 17.8°C)
Issued (local time): 1 am Friday 17 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest