Portsmouth, Southern Branch Sea Conditions and Tide Table

Portsmouth, Southern Branch 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 07:42 PM.

Days 1–4 Weather Summary

Moderate rain (total 18mm), heaviest on Fri afternoon. Very warm air temperatures (max 31°C on Thu afternoon, min 23°C on Fri afternoon). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 8mm), mostly falling on Sat afternoon. Very warm air temperatures (max 36°C on Mon afternoon, min 24°C on Sat night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Thu night. Warm (max 37°C on Tue afternoon, min 24°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Moderate rain (total 15mm), heaviest on Fri night. Warm (max 35°C on Fri afternoon, min 20°C on Sun morning). Wind will be generally light.

Days 14–17 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Warm (max 33°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light.

Wed
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
9:03PM1.03m
9:27AM0.95m
9:41PM1.05m
10:05AM1.01m
10:18PM1.05m
10:42AM1.05m
10:56PM1.03m
11:21AM1.08m
11:35PM1.00m
12:01PM1.10m
00:17AM0.96m
12:45PM1.11m
1:03AM0.91m
1:34PM1.09m
1:55AM0.86m
2:31PM1.07m
2:56AM0.82m
3:37PM1.05m
4:06AM0.80m
4:49PM1.04m
5:21AM0.81m
6:01PM1.05m
6:32AM0.86m
7:06PM1.07m
7:35AM0.93m
8:04PM1.09m
8:30AM1.01m
Low Tide
2:49PM0.16m
3:28AM0.13m
3:33PM0.14m
4:02AM0.10m
4:15PM0.12m
4:36AM0.08m
4:57PM0.11m
5:10AM0.06m
5:40PM0.11m
5:46AM0.06m
6:25PM0.12m
6:25AM0.07m
7:14PM0.15m
7:09AM0.09m
8:10PM0.18m
8:00AM0.12m
9:13PM0.21m
9:00AM0.15m
10:24PM0.23m
10:10AM0.16m
11:36PM0.21m
11:24AM0.15m
00:41AM0.16m
12:37PM0.12m
1:38AM0.11m
1:42PM0.07m
2:28AM0.05m
2:40PM0.03m
Wave
Height (m)
Direction
Period (s)
part cloud
part cloud
clear
cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
rain showers
clear
rain showers
thunderstorm
clear
clear
thunderstorm
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
rain showers
part cloud
clear
some clouds
some clouds
clear
cloudy
rain shwrs
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
some clouds
some clouds
some clouds
clear
some clouds
some clouds
clear
some clouds
clear
clear
clear
rain shwrs
clear
rain shwrs
risk tstorm
clear
clear
risk tstorm
some clouds
some clouds
clear
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
rain shwrs
some clouds
clear
km/h
20
ESE
15
S
10
S
15
SSE
10
SSW
15
WNW
10
SSE
5
SW
5
NE
10
E
10
SSE
5
SSW
15
SE
15
SSW
15
WSW
0
SSE
15
SW
10
W
10
WSW
10
WSW
10
NNW
15
NE
10
E
5
E
20
ESE
0
SSE
10
SSW
20
SW
20
SW
25
N
10
N
10
NW
20
NNW
20
NNE
10
N
20
NNW
15
NW
10
WNW
15
WNW
10
WNW
10
WSW
10
SW
10
SSW
20
SW
15
N
10
NE
10
E
 mm
1
2
12
1
2
6
2
1
1
5
15
3
max °C
29
26
28
31
27
25
23
24
26
27
26
25
30
28
30
36
33
32
37
36
33
35
27
28
31
25
29
35
30
23
28
25
23
26
24
23
25
23
23
27
26
27
33
30
22
26
25
Moonrise
7:02
7:29
7:54
8:18
8:43
9:11
9:43
10:22
11:09
12:06
1:13
2:26
3:40
4:53
6:03
Moonset
5:50
6:53
7:56
9:01
10:07
11:16
12:27
1:39
2:49
3:51
4:45
5:28
6:05
6:35
7:03
Sunrise
6:31
6:31
6:33
6:33
6:33
6:35
6:35
6:37
6:37
6:37
6:39
6:39
6:41
6:41
6:41
Sunset
7:42
7:40
7:38
7:37
7:37
7:35
7:34
7:31
7:30
7:29
7:28
7:25
7:24
7:22
7:22
7:20
Today's sea temperature in Portsmouth, Southern Branch is
27.9°C
(Statistics for 26 Aug 1981-2005 – mean: 25.3 max: 26.5 min: 23.0°C)
Issued (local time): 1 pm Wednesday 26 Aug 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest