South Island Ferry, Intracoastal Waterway Sea Conditions and Tide Table

South Island Ferry, Intracoastal Waterway 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 07:07 AM and sunset is at 05:08 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Sun afternoon. Icy conditions (max 12°C on Sun night, min -3°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 19°C on Fri morning, min 6°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 11°C on Fri night, min -4°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 12°C on Thu afternoon, min -3°C on Mon night). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
10:24AM1.43m
10:50PM1.13m
11:18AM1.36m
11:48PM1.10m
12:12PM1.28m
00:47AM1.08m
1:06PM1.20m
1:46AM1.06m
1:59PM1.12m
2:45AM1.07m
2:51PM1.06m
3:42AM1.09m
3:43PM1.02m
4:34AM1.12m
4:34PM0.99m
5:23AM1.16m
5:23PM0.98m
6:09AM1.19m
6:10PM0.98m
6:53AM1.22m
6:55PM0.99m
7:35AM1.23m
Low Tide
5:22PM-0.02m
5:24AM-0.11m
6:15PM0.02m
6:20AM-0.03m
7:08PM0.06m
7:17AM0.05m
8:02PM0.09m
8:17AM0.12m
8:55PM0.12m
9:18AM0.17m
9:47PM0.12m
10:19AM0.19m
10:37PM0.12m
11:16AM0.19m
11:24PM0.11m
12:09PM0.16m
00:09AM0.10m
12:57PM0.13m
00:52AM0.08m
1:41PM0.11m
1:33AM0.06m
2:23PM0.09m
Wave
height (m) 
direction
period (s) 
0.4
SE
9
0.4
SE
9
0.5
SE
9
0.7
ENE
4
0.7
E
5
0.9
E
8
0.7
E
9
0.5
E
9
0.4
ESE
9
0.4
ESE
9
0.8
SSW
4
0.6
SSW
5
0.3
ESE
9
0.4
ESE
8
0.7
SSW
4
0.6
S
6
0.4
S
6
0.6
ENE
4
0.4
ESE
4
0.5
W
3
0.6
NE
5
0.5
NE
5
0.3
ESE
8
0.2
ESE
10
0.3
SE
10
0.4
SE
9
0.6
SE
10
0.6
NNW
3
0.6
ESE
10
0.4
SE
10
0.4
ESE
11
0.4
ESE
12
0.4
ESE
12
0.4
ESE
12
0.4
ESE
12
cloud
light rain
cloud
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloudy
light rain
cloudy
light rain
cloudy
some clouds
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
clear
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
 km/h
5
NE
10
ENE
10
NNE
15
N
15
N
15
N
10
N
5
SSW
5
SW
10
SW
15
SW
10
WSW
10
WSW
10
SW
15
SW
15
W
10
NW
10
NNE
10
N
20
WNW
20
NNW
15
N
10
N
5
NW
0
SW
10
SW
20
NW
20
NNW
15
NNW
10
NW
5
WNW
5
WSW
5
WSW
10
WSW
5
SW
 mm 
1
2
max°C
11
11
12
7
5
1
6
8
7
14
14
12
17
18
17
19
18
11
11
9
-3
3
4
4
10
10
6
3
4
2
8
9
8
11
12
Moonrise
8:10
9:20
10:27
11:29
12:27
1:24
2:21
3:17
4:15
5:13
6:12
Moonset
10:03
10:48
11:23
11:54
12:21
12:46
1:10
1:36
2:04
2:35
3:11
3:54
Sunrise
7:07
7:07
7:07
7:09
7:09
7:11
7:11
7:11
7:13
7:13
7:13
7:13
Sunset
5:08
5:08
5:08
5:08
5:09
5:09
5:09
5:09
5:10
5:10
5:12
5:12
Today's sea temperature in South Island Ferry, Intracoastal Waterway is
13.4° C
(Statistics for 07 Dec 1981-2005 – mean: 21.9 max: 23.6 min: 20.0°C)
Issued (local time): 12 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest