Smith Island (Coast Guard Station) Sea Conditions and Tide Table

Smith Island (Coast Guard Station) 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 04:49 PM.

Days 1–4 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Icy conditions (max 9°C on Tue morning, min 0°C on Sun night). Winds increasing (calm on Mon afternoon, fresh winds from the SW by Tue morning).

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Thu morning. Cool air temperatures (max 15°C on Thu afternoon, min 5°C on Wed morning). Mainly fresh winds.

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Fri afternoon. Very mild (max 16°C on Fri afternoon, min 1°C on Fri night). Winds increasing (calm on Sat night, strong winds from the NNW by Sun night).

Days 11–13 Weather Summary

Mostly dry. Freeze-thaw conditions (max 10°C on Thu afternoon, min -1°C on Mon night). Winds decreasing (near gales from the N on Mon afternoon, calm by Wed morning).

Sat
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
Wave Height Map
High Tide
8:32PM0.88m
9:01AM1.27m
9:13PM0.88m
9:41AM1.26m
9:55PM0.89m
10:21AM1.24m
10:38PM0.90m
11:02AM1.21m
11:22PM0.91m
11:45AM1.16m
00:11AM0.94m
12:31PM1.10m
1:04AM0.99m
1:23PM1.04m
2:03AM1.05m
2:21PM0.98m
3:05AM1.14m
3:23PM0.93m
4:07AM1.23m
4:24PM0.91m
5:06AM1.33m
5:23PM0.91m
6:03AM1.39m
Low Tide
3:25PM0.09m
3:06AM-0.01m
4:03PM0.09m
3:46AM-0.00m
4:43PM0.09m
4:28AM0.02m
5:24PM0.10m
5:12AM0.05m
6:07PM0.10m
6:01AM0.09m
6:51PM0.09m
6:56AM0.11m
7:37PM0.07m
7:56AM0.13m
8:26PM0.04m
8:59AM0.12m
9:17PM-0.01m
10:05AM0.09m
10:11PM-0.06m
11:11AM0.04m
11:08PM-0.13m
12:16PM-0.03m
00:06AM-0.19m
Wave
height (m) 
direction
period (s) 
0.7
SE
9
0.8
ESE
8
0.8
E
10
1
E
10
1.4
NNE
5
0.9
E
10
0.6
E
10
0.6
E
9
0.9
SSW
4
0.8
SW
4
0.5
E
10
0.9
NNE
4
0.8
NE
6
0.6
NE
6
0.7
ESE
4
0.7
E
9
1
E
11
1.2
E
11
1.1
E
11
1.2
NNE
4
1.2
NE
6
0.9
NE
6
0.7
ENE
6
0.6
ENE
6
0.6
ENE
6
1
NNW
4
1.9
NNE
6
2.1
NE
7
2.3
ENE
11
2.3
ENE
11
2
E
11
2
E
13
1.8
E
13
1.7
E
13
1.5
E
14
1.4
E
15
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
rain showers
rain showers
part cloud
clear
clear
part cloud
cloud
light rain
part cloud
part cloud
cloud
rain showers
clear
clear
clear
part cloud
cloud
light rain
rain showers
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
some clouds
clear
some clouds
some clouds
clear
clear
some clouds
rain shwrs
rain shwrs
some clouds
clear
clear
some clouds
cloudy
light rain
some clouds
some clouds
cloudy
rain shwrs
clear
clear
clear
some clouds
cloudy
light rain
rain shwrs
some clouds
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
cloudy
some clouds
 km/h
15
SE
25
SSW
20
WNW
25
N
35
N
15
NNE
0
NE
25
SSW
35
SW
25
WSW
15
NW
30
N
20
N
10
S
25
SSE
20
SSW
25
SW
30
SW
30
WSW
30
N
25
NNE
15
NE
10
ESE
10
SSE
15
SSW
40
NNW
50
NNW
50
NNW
45
N
25
NNE
20
NNE
15
NNE
5
N
5
SSE
10
SSW
10
SW
 mm 
1
1
2
2
3
2
max°C
5
7
8
6
4
1
3
5
9
14
14
5
5
6
8
15
15
15
16
7
3
4
8
8
8
8
4
4
2
1
2
3
3
5
7
8
Moonrise
8:45
9:24
9:57
10:26
10:52
11:17
11:41
12:08
12:38
1:14
1:59
2:55
Moonset
5:10
6:10
7:13
8:18
9:22
10:26
11:31
12:38
1:48
3:02
4:19
5:35
Sunrise
7:13
7:13
7:13
7:13
7:15
7:15
7:15
7:16
7:16
7:16
7:16
7:16
Sunset
4:49
4:50
4:50
4:51
4:51
4:52
4:52
4:52
4:53
4:54
4:54
4:55
Today's sea temperature in Smith Island (Coast Guard Station) is
6.7° C
(Statistics for 20 Dec 1981-2005 – mean: 12.1 max: 14.3 min: 8.4°C)
Issued (local time): 6 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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