Portsmouth Naval Shipyard (disputed waters) Sea Conditions and Tide Table

Portsmouth Naval Shipyard (disputed waters) 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 07:05 AM and sunset is at 04:07 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 2°C on Sat afternoon, min -10°C on Sun night). Mainly fresh winds.

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Thu night. Icy conditions (max 10°C on Thu night, min -4°C on Tue morning). Winds increasing (calm on Thu morning, fresh winds from the SW by Thu night).

Days 7–9 Weather Summary

Light rain (total 9mm), mostly falling on Sun morning. Freeze-thaw conditions (max 11°C on Sun morning, min -6°C on Sun night). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the SW by Sat afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 6°C on Wed morning, min -8°C on Mon night). Mainly fresh winds.

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
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
6:43PM2.26m
7:12AM2.42m
7:42PM2.22m
8:02AM2.44m
8:35PM2.20m
8:47AM2.48m
9:24PM2.20m
9:29AM2.51m
10:08PM2.21m
10:08AM2.54m
10:48PM2.22m
10:45AM2.57m
11:25PM2.22m
11:21AM2.58m
00:01AM2.22m
11:57AM2.59m
00:37AM2.22m
12:33PM2.59m
1:14AM2.23m
1:12PM2.58m
1:52AM2.26m
1:53PM2.55m
2:33AM2.30m
Low Tide
12:31PM0.32m
00:50AM0.30m
1:30PM0.28m
1:42AM0.36m
2:23PM0.23m
2:30AM0.39m
3:11PM0.17m
3:14AM0.40m
3:54PM0.12m
3:53AM0.40m
4:34PM0.09m
4:31AM0.39m
5:11PM0.07m
5:07AM0.38m
5:47PM0.06m
5:42AM0.37m
6:22PM0.06m
6:19AM0.36m
6:57PM0.05m
6:58AM0.35m
7:35PM0.05m
7:40AM0.34m
8:14PM0.05m
Wave
height (m) 
direction
period (s) 
0.4
SW
2
0.5
S
3
0.4
SW
3
0.3
SE
9
0.4
N
2
0.8
NE
6
0.7
NW
3
0.6
WNW
3
0.4
W
3
0.2
ESE
10
0.2
ESE
10
0.6
SSW
3
1.1
S
4
1
SSE
6
0.9
W
4
0.4
SE
10
0.2
ESE
10
1.5
SSE
6
1.2
SE
8
1
WSW
4
0.8
W
4
0.5
W
3
0.2
SSE
9
0.8
S
4
1.2
SSE
7
0.9
SSE
9
0.6
WNW
3
0.7
WNW
3
0.5
NW
3
0.2
NNE
4
0.9
S
4
1.3
S
6
0.9
SSE
7
0.4
SSE
6
0.2
ESE
9
0.2
ESE
9
cloud
part cloud
cloud
part cloud
cloud
clear
clear
cloud
part cloud
clear
cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
mod rain
clear
clear
clear
cloud
cloud
light rain
light rain
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloudy
some clouds
cloudy
some clouds
cloudy
clear
clear
cloudy
some clouds
clear
cloudy
some clouds
some clouds
some clouds
clear
cloudy
cloudy
mod rain
clear
clear
clear
cloudy
cloudy
light rain
light rain
clear
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
 km/h
15
SW
15
SW
15
WSW
15
WNW
20
NNW
25
NW
30
WNW
25
WNW
20
W
10
W
10
SW
20
SW
30
SW
25
SW
35
WNW
15
WNW
10
SSE
30
S
30
W
35
W
30
WNW
20
WNW
10
SW
25
SSW
25
WSW
30
WNW
30
WNW
25
WNW
20
NW
0
ENE
30
SSW
35
SW
25
SW
15
W
10
WNW
5
NNE
 mm 
8
4
5
max°C
1
2
0
0
-2
-7
-5
-5
-5
-1
-1
0
6
6
5
-1
2
10
8
4
-1
1
3
10
11
5
-1
-5
-6
-5
1
4
4
6
5
2
Moonrise
12:54
1:58
3:01
4:05
5:10
6:13
7:12
8:03
8:47
9:23
9:52
10:16
Moonset
12:27
12:46
1:07
1:32
2:03
2:41
3:28
4:23
5:26
6:33
7:42
8:51
Sunrise
7:05
7:05
7:07
7:07
7:07
7:09
7:09
7:09
7:11
7:11
7:11
7:11
Sunset
4:07
4:07
4:07
4:07
4:08
4:08
4:09
4:09
4:09
4:10
4:12
4:12
Today's sea temperature in Portsmouth Naval Shipyard (disputed waters) is
7.6° C
(Statistics for 13 Dec 1981-2005 – mean: 7.3 max: 8.7 min: 5.6°C)
Issued (local time): 6 am Saturday 13 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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