Portsmouth Sea Conditions and Tide Table

Portsmouth 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 06:11 AM and sunset is at 05:40 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Sat night. Icy conditions (max 11°C on Sun morning, min 0°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Cool air temperatures (max 16°C on Tue morning, min 3°C on Mon afternoon). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Freeze-thaw conditions (max 12°C on Sat afternoon, min -5°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu afternoon, light winds from the ESE by Fri morning).

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 4mm) on Mon night. Freeze-thaw conditions (max 10°C on Mon night, min -8°C on Tue night). Winds increasing (calm on Sun morning, strong winds from the SSW by Mon night).

Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sat
21
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
9:32AM1.18m
9:54PM1.31m
10:09AM1.11m
10:33PM1.25m
10:46AM1.03m
11:14PM1.18m
11:26AM0.96m
00:01AM1.12m
12:14PM0.90m
00:56AM1.06m
1:14PM0.86m
2:01AM1.04m
2:26PM0.85m
3:08AM1.05m
3:36PM0.89m
4:07AM1.09m
4:34PM0.96m
4:57AM1.15m
5:22PM1.06m
5:42AM1.21m
6:04PM1.17m
6:23AM1.26m
6:45PM1.28m
7:04AM1.30m
7:26PM1.37m
7:45AM1.31m
8:07PM1.44m
8:27AM1.30m
Low Tide
3:35PM0.13m
4:11AM0.18m
4:10PM0.18m
4:52AM0.26m
4:47PM0.24m
5:36AM0.34m
5:27PM0.31m
6:26AM0.40m
6:16PM0.36m
7:27AM0.45m
7:16PM0.40m
8:36AM0.46m
8:26PM0.41m
9:42AM0.42m
9:35PM0.38m
10:35AM0.36m
10:34PM0.32m
11:19AM0.28m
11:25PM0.24m
11:58AM0.19m
00:11AM0.16m
12:35PM0.12m
00:55AM0.09m
1:13PM0.05m
1:39AM0.03m
1:51PM0.01m
2:23AM0.00m
2:31PM-0.01m
Wave
height (m) 
direction
period (s) 
cloud
cloud
cloud
cloud
cloud
light rain
cloud
rain showers
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
light rain
cloud
light rain
light rain
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
light snow
part cloud
part cloud
cloud
cloud
rain showers
part cloud
clear
clear
clear
part cloud
cloud
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
cloudy
cloudy
cloudy
cloudy
cloudy
light rain
cloudy
rain shwrs
some clouds
clear
some clouds
some clouds
some clouds
some clouds
cloudy
light rain
cloudy
light rain
light rain
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
light snow
some clouds
some clouds
cloudy
cloudy
rain shwrs
some clouds
clear
clear
clear
some clouds
cloudy
light rain
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
light rain
 km/h
25
NNE
20
NNE
5
NE
15
SSW
20
SSW
20
SW
15
SW
15
WSW
15
WSW
10
S
15
SSW
10
SW
15
SW
10
SSW
10
E
10
SE
10
SW
5
E
25
NNW
25
WNW
25
NNW
10
ESE
20
SSE
15
SE
10
SW
10
NW
15
N
5
NNE
5
WSW
5
SSW
15
SE
30
SSE
35
SW
30
WNW
30
WNW
20
NNW
20
NNW
10
NW
15
SW
30
SSW
20
SW
0
WNW
15
SSE
15
SSW
10
W
10
ENE
20
NE
 mm 
2
1
2
3
3
4
3
5
1
max°C
0
0
2
3
5
8
11
10
9
9
5
8
16
15
13
7
8
7
6
5
-1
1
0
4
11
12
6
1
2
2
3
8
10
4
3
-2
-1
1
0
3
3
5
8
13
18
10
5
Moonrise
9:23
10:28
12:33
1:35
2:34
3:27
4:12
4:49
5:21
5:47
6:11
6:33
6:55
7:19
7:45
Moonset
7:20
7:42
9:09
9:40
10:17
11:03
11:57
12:58
2:04
3:13
4:23
5:33
6:45
7:58
9:14
Sunrise
6:11
6:09
7:07
6:05
6:05
6:03
6:01
6:00
5:58
5:56
5:54
5:52
5:50
5:50
5:48
5:46
Sunset
5:40
5:42
6:43
5:44
5:45
5:46
5:47
5:49
5:50
5:51
5:52
5:52
5:54
5:55
5:57
5:58
Today's sea temperature in Portsmouth is
1.4° C
(Statistics for 06 Mar 1981-2005 – mean: 4.0 max: 5.6 min: 2.7°C)
Issued (local time): 12 pm Friday 06 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
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