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 04:08 PM.

Days 1–3 Weather Summary

Moderate rain (total 11mm), heaviest on Fri morning. Icy conditions (max 12°C on Fri morning, min -6°C on Sun night). Winds decreasing (gales from the S on Fri morning, light winds from the W by Sat afternoon).

Days 4–6 Weather Summary

A dusting of new snow. Icy conditions (max 4°C on Tue night, min -5°C on Mon morning). Winds decreasing (strong winds from the NW on Mon morning, light winds from the WNW by Wed night).

Days 7–9 Weather Summary

Heavy rain (total 21mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Sat afternoon. Freeze-thaw conditions (max 8°C on Fri afternoon, min -5°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the W by Fri night).

Days 10–12 Weather Summary

A dusting of snow. Milder later with heavy rain (total 25mm) on Tue night. Freeze-thaw conditions (max 6°C on Tue night, min -11°C on Sun night). Winds increasing (light winds from the SW on Tue afternoon, strong winds from the NNE by Wed morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
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
night
Wave Height Map
High Tide
10:27AM2.70m
11:09PM2.35m
11:05AM2.72m
11:47PM2.35m
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
Low Tide
4:52PM0.06m
4:47AM0.41m
5:29PM0.05m
5:24AM0.39m
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
Wave
height (m) 
direction
period (s) 
2.2
SSE
7
3.5
SSE
9
2.2
SE
10
1.5
SE
11
1
SE
11
1.7
S
5
1.4
SE
9
1.2
SE
9
1
ESE
10
1.1
NW
4
1
NW
4
0.4
ESE
10
0.9
SSW
4
1.3
SSE
6
0.9
W
4
0.7
WNW
4
0.7
WNW
3
0.4
NE
5
0.4
SW
3
0.3
ESE
11
0.4
E
10
0.9
SSE
5
0.6
SSE
6
0.8
W
4
0.7
W
4
0.4
SE
9
0.9
NE
4
1
NW
4
1
WNW
4
1
NW
4
0.9
WNW
4
1
WNW
4
0.6
W
3
0.6
SW
4
0.6
SW
4
0.7
S
4
mod rain
rain showers
part cloud
clear
part cloud
cloud
cloud
clear
clear
clear
clear
part cloud
light snow
snow showers
part cloud
part cloud
clear
clear
clear
part cloud
heavy rain
rain showers
clear
clear
cloud
light snow
light snow
part cloud
clear
clear
clear
clear
clear
cloud
cloud
light snow
mod rain
rain shwrs
some clouds
clear
some clouds
cloudy
cloudy
clear
clear
clear
clear
some clouds
light snow
snow shwrs
some clouds
some clouds
clear
clear
clear
some clouds
heavy rain
rain shwrs
clear
clear
cloudy
light snow
light snow
some clouds
clear
clear
clear
clear
clear
cloudy
cloudy
light snow
 km/h
40
S
50
W
50
W
25
W
15
W
45
SSW
35
WSW
35
WNW
35
WNW
40
NW
30
WNW
15
W
35
SSW
30
SW
30
WNW
30
WNW
25
NW
10
WNW
20
WSW
10
W
20
S
20
WNW
20
W
30
W
25
WNW
10
NNW
25
N
35
NW
40
WNW
35
NW
35
WNW
40
WNW
20
W
20
WSW
20
SW
20
SE
 mm 
6
5
19
2
22
max°C
12
10
1
1
2
4
4
1
-1
-3
-3
-1
2
2
4
3
2
-2
2
3
6
7
8
4
1
-1
-1
-5
-6
-9
-8
-8
-5
0
2
6
Moonrise
7:10
8:02
8:46
9:22
9:51
10:15
10:37
10:57
11:17
11:39
12:04
12:35
Moonset
3:28
4:23
5:26
6:33
7:42
8:50
9:59
11:09
12:21
1:36
2:55
Sunrise
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
Sunset
4:08
4:09
4:09
4:10
4:10
4:12
4:13
4:13
4:14
4:15
4:15
4:15
Today's sea temperature in Gosport Harbor, Isles of Shoals is
7.0° C
(Statistics for 19 Dec 1981-2005 – mean: 6.7 max: 8.7 min: 4.9°C)
Issued (local time): 6 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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