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 06:22 AM and sunset is at 07:54 PM.

Days 1–3 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Very warm air temperatures (max 34°C on Mon afternoon, min 24°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 20mm), heaviest during Fri night. Very warm air temperatures (max 33°C on Thu afternoon, min 22°C on Fri night). Wind will be generally light.

Days 7–9 Weather Summary

Moderate rain (total 16mm), heaviest on Mon night. Warm (max 28°C on Mon afternoon, min 23°C on Sat morning). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 16mm), heaviest on Wed night. Warm (max 34°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light.

Days 13–16 Weather Summary

Moderate rain (total 17mm), heaviest on Sun afternoon. Warm (max 26°C on Mon morning, min 23°C on Fri night). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Mon
31
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
12:45PM1.05m
1:01AM0.91m
1:30PM1.02m
1:44AM0.85m
2:17PM0.98m
2:31AM0.79m
3:06PM0.94m
3:21AM0.74m
4:01PM0.91m
4:18AM0.72m
5:00PM0.90m
5:19AM0.72m
5:59PM0.91m
6:20AM0.74m
6:53PM0.93m
7:15AM0.79m
7:41PM0.97m
8:03AM0.84m
8:23PM1.00m
8:47AM0.90m
9:03PM1.03m
9:27AM0.95m
9:41PM1.05m
10:05AM1.01m
10:18PM1.05m
10:42AM1.05m
10:56PM1.03m
11:21AM1.08m
Low Tide
6:30AM-0.01m
7:06PM0.06m
7:10AM0.04m
7:55PM0.12m
7:51AM0.09m
8:47PM0.19m
8:35AM0.15m
9:42PM0.24m
9:24AM0.20m
10:41PM0.28m
10:19AM0.23m
11:42PM0.29m
11:19AM0.25m
00:39AM0.28m
12:18PM0.24m
1:29AM0.25m
1:14PM0.22m
2:13AM0.21m
2:03PM0.20m
2:52AM0.17m
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
Wave
Height (m)
Direction
Period (s)
part cloud
part cloud
rain showers
thunderstorm
part cloud
rain showers
clear
clear
clear
clear
part cloud
thunderstorm
clear
clear
thunderstorm
clear
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
light rain
thunderstorm
clear
clear
part cloud
rain showers
clear
clear
clear
clear
thunderstorm
heavy rain
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
some clouds
some clouds
rain shwrs
risk tstorm
some clouds
rain shwrs
clear
clear
clear
clear
some clouds
risk tstorm
clear
clear
risk tstorm
clear
some clouds
risk tstorm
some clouds
some clouds
risk tstorm
light rain
risk tstorm
clear
clear
some clouds
rain shwrs
clear
clear
clear
clear
risk tstorm
heavy rain
cloudy
cloudy
some clouds
clear
clear
clear
clear
some clouds
rain shwrs
risk tstorm
risk tstorm
risk tstorm
some clouds
risk tstorm
km/h
15
SSE
20
SSE
15
SW
15
W
5
NE
0
ESE
15
NNE
10
ENE
5
SW
5
SSE
15
ESE
10
S
0
SSE
20
ESE
5
SSE
10
SW
15
N
5
WSW
5
SSW
5
SE
5
SSW
0
NNW
10
NE
5
SSE
10
ENE
15
SE
5
SSW
15
SW
20
SW
15
SW
15
NNW
20
N
10
NNE
20
NE
15
ENE
10
NE
20
NE
15
ENE
10
ENE
25
NE
20
NE
15
NE
20
NE
20
NE
5
ENE
10
ENE
15
E
 mm
3
1
1
2
2
16
4
1
1
10
1
15
1
3
5
3
4
max °C
27
30
26
29
34
29
28
31
29
28
30
27
30
33
28
30
33
24
25
27
25
23
26
26
27
28
26
28
34
31
28
28
23
23
23
23
24
24
23
24
25
23
24
24
24
26
26
Moonrise
10:35
11:38
12:41
1:44
2:44
3:41
4:33
5:19
5:59
6:33
7:02
7:29
7:54
8:18
8:43
Moonset
9:53
10:20
10:50
11:25
12:05
12:52
1:45
2:43
3:44
4:47
5:50
6:53
7:56
9:01
10:07
Sunrise
6:22
6:22
6:24
6:24
6:24
6:26
6:26
6:28
6:28
6:30
6:30
6:31
6:31
6:33
6:33
6:33
Sunset
7:54
7:53
7:52
7:52
7:50
7:49
7:47
7:45
7:45
7:44
7:42
7:40
7:38
7:37
7:37
7:35
Today's sea temperature in Portsmouth, Southern Branch is
28.0° C
(Statistics for 16 Aug 1981-2005 – mean: 25.8 max: 26.9 min: 24.4°C)
Issued (local time): 1 am Sunday 16 Aug 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest