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

Moderate rain (total 16mm), heaviest on Thu night. Cool air temperatures (max 18°C on Thu night, min 9°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sun afternoon).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Tue afternoon, min 6°C on Sun night). Winds decreasing (fresh winds from the NE on Mon morning, calm by Wed morning).

Days 7–9 Weather Summary

Mostly dry. Warm (max 22°C on Fri afternoon, min 16°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 9mm), mostly falling on Mon night. Warm (max 22°C on Sun afternoon, min 4°C on Tue night). Winds increasing (light winds from the WSW on Sat night, fresh winds from the NNE by Tue afternoon).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
7:14AM1.68m
7:18PM1.36m
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
Low Tide
1:30PM0.08m
1:14AM0.04m
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
Wave
height (m) 
direction
period (s) 
1.4
SE
9
1.1
SE
8
0.7
SE
9
0.7
SE
8
0.6
SE
8
0.6
SE
8
0.6
ESE
8
0.5
SE
9
1.1
ENE
4
1.5
E
7
1.5
E
7
1.1
ESE
9
1
ESE
9
0.8
ESE
9
0.7
ESE
9
0.6
ESE
8
0.6
ESE
8
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.7
S
5
0.5
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
ESE
8
0.4
SE
9
0.6
SSE
6
0.7
S
4
0.9
NNE
4
1.3
ENE
6
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
mod rain
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
mod rain
light rain
clear
 km/h
30
W
20
W
10
NNW
15
E
10
NE
10
WSW
10
WNW
0
E
30
NE
35
NE
30
ENE
20
NNE
20
NE
5
SW
10
W
10
WNW
5
SSE
10
E
0
NE
10
S
15
SW
20
WSW
20
SW
15
W
5
WNW
10
SSW
10
W
10
W
15
SW
15
SW
15
SW
20
SSW
20
W
35
NNE
35
NNE
 mm 
8
1
max°C
18
16
11
16
17
16
16
17
14
8
8
12
17
18
17
17
18
17
18
18
18
21
22
20
20
21
21
21
22
20
19
18
17
8
9
Moonrise
7:08
8:00
8:47
9:28
10:03
10:35
11:04
11:31
11:59
12:28
1:02
1:41
Moonset
4:46
5:41
6:40
7:41
8:43
9:44
10:45
11:47
12:51
1:57
3:08
Sunrise
7:16
7:16
7:16
7:18
7:18
7:18
7:18
7:18
7:20
7:20
7:20
7:20
Sunset
5:15
5:15
5:16
5:16
5:17
5:17
5:19
5:20
5:20
5:21
5:22
5:22
Today's sea temperature in Sullivans Island is
11.5° C
(Statistics for 19 Dec 1981-2005 – mean: 21.3 max: 23.6 min: 18.8°C)
Issued (local time): 12 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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