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 06:28 AM and sunset is at 06:45 PM.

Days 1–3 Weather Summary

Moderate rain (total 10mm), heaviest on Sun afternoon. Cool air temperatures (max 19°C on Sun night, min 11°C on Tue night). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 25mm), heaviest during Fri night. Cool air temperatures (max 16°C on Thu afternoon, min 12°C on Wed night). Winds increasing (moderate winds from the NE on Wed night, strong winds from the NNE by Fri night).

Days 7–9 Weather Summary

Heavy rain (total 34mm), heaviest during Sun afternoon. Very mild (max 15°C on Sat night, min 11°C on Sun afternoon). Mainly strong winds.

Days 10–12 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Warm (max 21°C on Wed afternoon, min 7°C on Thu night). Wind will be generally light.

Days 13–16 Weather Summary

Mostly dry. Very mild (max 17°C on Mon night, min 8°C on Sat morning). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
3:56PM1.04m
4:26AM0.90m
4:54PM1.07m
5:21AM0.97m
5:42PM1.12m
6:07AM1.06m
6:25PM1.17m
6:47AM1.16m
7:04PM1.21m
7:25AM1.26m
7:42PM1.24m
8:03AM1.34m
8:21PM1.26m
8:42AM1.41m
9:01PM1.25m
9:23AM1.44m
9:42PM1.23m
10:07AM1.45m
10:27PM1.18m
10:55AM1.42m
11:16PM1.12m
11:48AM1.36m
00:12AM1.06m
12:50PM1.30m
1:19AM1.01m
2:00PM1.24m
2:36AM1.00m
3:14PM1.22m
Low Tide
9:19AM0.42m
10:29PM0.42m
10:26AM0.39m
11:20PM0.36m
11:23AM0.34m
00:01AM0.29m
12:11PM0.27m
00:39AM0.22m
12:55PM0.19m
1:14AM0.15m
1:36PM0.13m
1:49AM0.09m
2:17PM0.07m
2:25AM0.05m
2:59PM0.05m
3:03AM0.03m
3:43PM0.05m
3:44AM0.03m
4:29PM0.07m
4:28AM0.06m
5:19PM0.13m
5:17AM0.11m
6:16PM0.19m
6:14AM0.17m
7:22PM0.25m
7:22AM0.23m
8:34PM0.27m
8:40AM0.26m
Wave
Height (m)
Direction
Period (s)
part cloud
light rain
light rain
cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
mod rain
heavy rain
light rain
cloud
cloud
light rain
heavy rain
mod rain
light rain
light rain
cloud
cloud
cloud
light rain
clear
part cloud
clear
light rain
part cloud
cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
clear
some clouds
light rain
light rain
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
cloudy
mod rain
heavy rain
light rain
cloudy
cloudy
light rain
heavy rain
mod rain
light rain
light rain
cloudy
cloudy
cloudy
light rain
clear
some clouds
clear
light rain
some clouds
cloudy
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
cloudy
clear
km/h
15
SSE
20
S
15
NNW
25
NNE
20
NE
15
NNE
20
NE
20
NE
25
NE
25
NE
25
NE
20
NE
30
NE
25
NE
25
NE
35
NE
40
NNE
45
NNE
40
NE
30
NE
35
NE
40
NE
35
NE
35
NE
30
NE
30
NNE
20
NNE
15
NNE
15
NNE
10
W
10
WSW
15
SW
10
SW
10
NW
20
WNW
15
NW
20
WNW
25
NW
20
W
25
NW
20
NW
15
NW
15
N
5
SSE
10
S
15
S
20
S
 mm
5
5
6
19
2
1
15
10
2
4
5
2
max °C
17
17
19
15
18
15
13
13
12
14
14
13
15
16
13
14
14
13
13
13
15
15
12
14
14
14
14
14
16
14
18
21
19
16
18
13
12
15
13
12
15
12
10
15
14
15
16
Moonrise
3:51
4:25
4:53
5:17
5:39
6:00
6:22
6:46
7:13
7:46
8:28
9:21
10:24
11:37
12:53
Moonset
12:54
1:59
3:05
4:12
5:19
6:28
7:38
8:52
10:08
11:25
12:39
1:45
2:39
3:22
3:56
Sunrise
6:28
6:30
6:31
6:31
6:33
6:33
6:35
6:37
6:37
6:39
6:39
6:41
6:41
6:43
6:43
6:45
Sunset
6:45
6:44
6:43
6:40
6:38
6:37
6:36
6:34
6:31
6:30
6:29
6:27
6:24
6:23
6:22
6:20
Today's sea temperature in Portsmouth is
22.1°C
(Statistics for 20 Sep 1981-2005 – mean: 18.7 max: 20.2 min: 15.5°C)
Issued (local time): 7 am Sunday 20 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest