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 — and sunset is at 07:01 PM.

Days 1–4 Weather Summary

Heavy rain (total 84mm), heaviest during Sun morning. Warm air temperatures (max 25°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 22°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Warm (max 21°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 17°C on Sun afternoon, min 11°C on Mon night). Winds increasing (light winds from the SSW on Sun afternoon, fresh winds from the NE by Wed morning).

Days 14–17 Weather Summary

Light rain (total 8mm), mostly falling on Sun morning. Very mild (max 19°C on Fri afternoon, min 10°C on Wed night). Wind will be generally light.

Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
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
night
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
8:54PM1.32m
9:14AM1.40m
9:34PM1.27m
9:55AM1.39m
10:13PM1.20m
10:36AM1.35m
10:52PM1.12m
11:17AM1.29m
11:32PM1.04m
12:00PM1.21m
00:15AM0.96m
12:49PM1.13m
1:05AM0.90m
1:45PM1.07m
2:07AM0.86m
2:50PM1.04m
3:19AM0.86m
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
Low Tide
2:45PM0.01m
3:00AM0.03m
3:30PM0.03m
3:38AM0.05m
4:12PM0.08m
4:15AM0.10m
4:55PM0.15m
4:53AM0.16m
5:38PM0.24m
5:32AM0.23m
6:23PM0.32m
6:15AM0.30m
7:16PM0.39m
7:06AM0.36m
8:17PM0.44m
8:08AM0.41m
9:26PM0.45m
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
Wave
Height (m)
Direction
Period (s)
clear
clear
clear
clear
part cloud
heavy rain
heavy rain
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
mod rain
part cloud
clear
clear
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
clear
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
light rain
clear
clear
clear
clear
some clouds
heavy rain
heavy rain
some clouds
rain shwrs
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
mod rain
some clouds
clear
clear
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
some clouds
cloudy
cloudy
clear
some clouds
clear
clear
some clouds
some clouds
cloudy
cloudy
light rain
km/h
10
W
10
NNE
5
ESE
10
S
15
S
15
ESE
10
NNW
10
WSW
15
N
10
NE
15
NNE
20
NE
15
NE
10
NNE
10
E
10
SSE
5
SE
15
S
20
SSW
20
SW
15
N
10
NNE
15
NNE
10
ENE
10
ESE
5
NE
0
SW
10
S
15
N
25
NE
20
NE
15
ENE
25
ENE
25
NE
25
NE
30
NE
20
NE
10
NNE
0
NE
10
SSW
5
WNW
5
NNE
10
SE
10
NE
20
ENE
20
NE
15
NE
 mm
43
34
7
7
3
max °C
25
23
21
22
21
20
19
20
17
22
18
16
18
13
16
20
17
18
19
20
18
21
16
16
17
15
16
17
17
14
15
12
15
16
14
13
13
11
12
15
14
15
19
16
17
18
14
Moonrise
7:59
9:07
10:15
11:22
12:27
1:28
2:24
3:11
3:51
4:25
4:53
5:17
5:39
6:00
6:22
Moonset
7:07
7:28
7:51
8:17
8:47
9:22
10:05
10:55
11:52
12:54
1:59
3:05
4:12
5:19
6:28
Sunrise
6:20
6:22
6:22
6:24
6:24
6:26
6:26
6:28
6:28
6:30
6:31
6:31
6:33
6:33
6:35
Sunset
7:01
7:00
6:58
6:55
6:54
6:52
6:51
6:50
6:47
6:45
6:44
6:43
6:40
6:38
6:37
6:36
Today's sea temperature in Portsmouth is
22.0°C
(Statistics for 11 Sep 1981-2005 – mean: 19.8 max: 21.4 min: 18.2°C)
Issued (local time): 1 pm Friday 11 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest