Gosport Harbor, Isles of Shoals Sea Conditions and Tide Table

Gosport Harbor, Isles of Shoals 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 07:09 AM and sunset is at 04:09 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 5°C on Sun morning, min -6°C on Sun night). Winds decreasing (strong winds from the SW on Sat night, light winds from the WNW by Tue morning).

Days 4–6 Weather Summary

A dusting of snow giving way to moderate rain (total 14mm) heaviest on Fri morning. Icy conditions (max 9°C on Fri morning, min -1°C on Wed morning). Winds increasing (light winds from the NE on Wed afternoon, strong winds from the NW by Fri afternoon).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 2°C on Sun afternoon, min -10°C on Fri night). Winds decreasing (fresh winds from the SSW on Sun morning, light winds from the NNW by Mon afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Thu afternoon, min -4°C on Mon night). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
11:42AM2.73m
00:24AM2.35m
12:18PM2.73m
00:59AM2.35m
12:56PM2.72m
1:37AM2.37m
1:36PM2.69m
2:17AM2.40m
2:21PM2.65m
3:01AM2.46m
3:11PM2.59m
3:48AM2.55m
4:06PM2.53m
4:39AM2.64m
5:04PM2.49m
5:33AM2.74m
6:07PM2.46m
6:31AM2.84m
7:13PM2.48m
7:31AM2.96m
8:15PM2.51m
8:28AM3.04m
Low Tide
6:04PM0.04m
6:02AM0.38m
6:40PM0.04m
6:40AM0.37m
7:16PM0.04m
7:21AM0.35m
7:56PM0.05m
8:07AM0.34m
8:39PM0.07m
8:58AM0.30m
9:26PM0.09m
9:53AM0.25m
10:16PM0.11m
10:51AM0.18m
11:08PM0.13m
11:52AM0.09m
00:05AM0.14m
12:56PM-0.03m
1:06AM0.12m
1:58PM-0.17m
2:04AM0.10m
2:56PM-0.27m
Wave
height (m) 
direction
period (s) 
1.6
SE
9
1.2
SE
9
1.4
WNW
4
1.2
WNW
4
0.8
NW
4
0.5
ESE
9
0.4
ESE
10
0.3
ESE
10
0.8
E
4
1
E
5
1.1
E
6
0.8
ESE
6
0.9
ESE
6
1
SSW
4
0.8
ESE
8
1
ESE
9
1.2
E
10
1.5
NNE
6
1.2
NE
6
0.8
ESE
9
0.4
ESE
10
1.1
S
4
0.9
SSE
5
0.6
SSE
5
0.8
NE
5
0.8
ENE
6
0.7
E
7
0.5
ENE
6
0.4
ENE
6
0.5
ENE
6
0.4
E
11
0.5
E
11
0.6
ESE
4
0.9
ESE
5
0.9
SE
9
clear
clear
clear
clear
clear
cloud
cloud
cloud
light snow
cloud
part cloud
cloud
clear
cloud
light rain
heavy rain
rain showers
clear
clear
clear
cloud
light snow
part cloud
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
cloudy
cloudy
cloudy
light snow
cloudy
some clouds
cloudy
clear
cloudy
light rain
heavy rain
rain shwrs
clear
clear
clear
cloudy
light snow
some clouds
clear
clear
clear
clear
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
 km/h
35
WSW
35
WNW
45
WNW
40
NW
30
NW
20
WSW
10
WNW
15
ENE
20
ESE
35
NNW
20
N
10
W
25
SW
25
SW
15
SW
25
SSW
40
WNW
25
NNW
20
NNW
10
WNW
20
SW
35
SSW
15
WSW
15
N
15
N
10
NNW
10
N
10
NE
10
E
15
ESE
15
ESE
20
E
15
NE
20
NNE
5
NE
 mm 
1
12
1
max°C
5
1
-2
-4
-4
-1
0
1
2
1
2
1
4
4
6
9
8
-2
-7
-6
-3
1
2
0
-1
0
-1
-1
-1
0
1
1
0
0
2
Moonrise
8:46
9:22
9:51
10:15
10:37
10:57
11:17
11:39
12:04
12:35
1:15
2:08
Moonset
5:26
6:33
7:42
8:50
9:59
11:09
12:21
1:36
2:55
4:17
5:37
Sunrise
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
Sunset
4:09
4:10
4:10
4:12
4:13
4:13
4:14
4:15
4:15
4:15
4:16
4:17
Today's sea temperature in Gosport Harbor, Isles of Shoals is
7.1° C
(Statistics for 21 Dec 1981-2005 – mean: 6.5 max: 7.7 min: 4.9°C)
Issued (local time): 12 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest