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 07:16 AM and sunset is at 05:15 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Mon night, min 7°C on Sun night). Winds decreasing (fresh winds from the ENE on Mon morning, calm by Mon night).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Tue morning, min 13°C on Wed night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 22°C on Sat night, min 11°C on Sun night). Winds increasing (calm on Sun afternoon, fresh winds from the NE by Sun night).

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 20°C on Tue night, min 11°C on Mon morning). Winds decreasing (fresh winds from the ENE on Mon morning, calm by Mon night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
7:52AM1.68m
7:57PM1.35m
8:28AM1.66m
8:34PM1.34m
9:03AM1.64m
9:10PM1.33m
9:37AM1.61m
9:48PM1.34m
10:14AM1.58m
10:30PM1.36m
10:56AM1.55m
11:18PM1.41m
11:43AM1.51m
00:13AM1.46m
12:36PM1.47m
1:12AM1.52m
1:35PM1.43m
2:15AM1.60m
2:39PM1.40m
3:21AM1.68m
3:45PM1.39m
4:27AM1.76m
4:51PM1.40m
5:32AM1.82m
Low Tide
2:08PM0.07m
1:52AM0.03m
2:45PM0.08m
2:30AM0.02m
3:21PM0.08m
3:08AM0.03m
3:58PM0.08m
3:50AM0.04m
4:37PM0.07m
4:37AM0.07m
5:20PM0.05m
5:30AM0.10m
6:08PM0.02m
6:31AM0.12m
7:01PM-0.02m
7:38AM0.13m
7:58PM-0.06m
8:48AM0.11m
8:57PM-0.12m
9:55AM0.05m
9:58PM-0.18m
10:59AM-0.02m
10:59PM-0.22m
Wave
height (m) 
direction
period (s) 
0.9
SE
9
0.7
SE
8
0.6
ESE
8
0.5
SE
8
0.5
SE
8
1.1
ENE
5
1.5
E
7
1.2
ESE
8
0.9
ESE
9
0.9
ESE
9
0.8
SE
6
0.7
ESE
9
0.5
SE
7
0.7
E
4
0.9
E
6
0.6
ESE
8
0.6
ESE
9
0.5
ESE
8
0.6
ESE
8
0.8
SSW
4
0.6
S
4
0.5
S
4
0.4
SSW
4
0.5
S
4
0.4
SSW
4
0.3
SSW
4
0.8
ENE
4
1.2
E
6
1
E
7
0.6
E
8
0.6
ESE
5
0.6
SE
5
0.5
SE
5
0.6
SSE
5
0.5
SE
5
0.6
SE
5
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
light rain
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
clear
some clouds
cloudy
some clouds
some clouds
light rain
 km/h
20
ENE
15
ENE
5
NE
10
NW
0
SSE
30
NNE
35
ENE
20
ENE
10
NE
20
SSW
25
SW
15
WSW
10
N
20
ENE
15
ENE
5
ESE
15
SW
10
WSW
20
WSW
25
SW
15
WSW
5
NNW
15
S
15
WSW
15
NW
5
NNE
20
NE
30
ENE
20
ENE
10
E
10
W
20
SSW
10
SSW
20
ENE
10
ESE
10
E
 mm 
4
max°C
13
13
13
16
17
13
11
13
18
18
18
18
17
16
14
17
17
17
19
19
19
20
21
22
21
22
16
11
12
17
19
19
20
18
18
18
Moonrise
8:00
8:47
9:28
10:03
10:35
11:04
11:31
11:59
12:28
1:02
1:41
2:29
Moonset
5:41
6:40
7:41
8:43
9:44
10:45
11:47
12:51
1:57
3:08
4:22
Sunrise
7:16
7:16
7:18
7:18
7:18
7:18
7:18
7:20
7:20
7:20
7:20
7:20
Sunset
5:15
5:16
5:16
5:17
5:17
5:19
5:20
5:20
5:21
5:22
5:22
5:22
Today's sea temperature in Sullivans Island is
11.8° C
(Statistics for 20 Dec 1981-2005 – mean: 21.2 max: 23.6 min: 18.8°C)
Issued (local time): 6 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest