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 07:21 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Sat afternoon, min 6°C on Thu morning). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 7mm), mostly falling on Mon night. Warm air temperatures (max 27°C on Mon afternoon, min 6°C on Tue morning). Mainly fresh winds.

Days 8–10 Weather Summary

Heavy rain (total 53mm), heaviest during Thu morning. Very mild (max 15°C on Fri afternoon, min 5°C on Tue night). Winds decreasing (strong winds from the NW on Thu afternoon, light winds from the NNW by Fri afternoon).

Days 11–13 Weather Summary

Light rain (total 8mm), mostly falling on Mon afternoon. Warm (max 30°C on Sun afternoon, min 10°C on Fri night). Winds increasing (calm on Sun night, fresh winds from the N by Mon afternoon).

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Mon
7
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
7:48PM0.91m
8:16AM0.98m
8:39PM1.00m
9:06AM1.01m
9:28PM1.08m
9:55AM1.01m
10:16PM1.13m
10:43AM1.00m
11:05PM1.15m
11:31AM0.96m
11:55PM1.14m
12:21PM0.91m
00:47AM1.09m
1:13PM0.85m
1:44AM1.02m
2:10PM0.79m
2:46AM0.95m
3:14PM0.75m
3:55AM0.89m
4:24PM0.73m
5:07AM0.86m
5:33PM0.75m
6:13AM0.84m
Low Tide
2:04AM-0.03m
2:34PM-0.03m
2:59AM-0.09m
3:19PM-0.09m
3:51AM-0.14m
4:03PM-0.13m
4:42AM-0.16m
4:49PM-0.15m
5:34AM-0.15m
5:35PM-0.13m
6:26AM-0.11m
6:25PM-0.10m
7:21AM-0.05m
7:18PM-0.05m
8:20AM0.02m
8:16PM0.01m
9:24AM0.08m
9:22PM0.06m
10:31AM0.12m
10:33PM0.09m
11:36AM0.13m
11:44PM0.10m
12:35PM0.12m
Wave
height (m) 
direction
period (s) 
clear
clear
part cloud
clear
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
mod rain
light rain
cloud
part cloud
cloud
part cloud
light rain
heavy rain
heavy rain
rain showers
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
cloud
thunderstorm
clear
clear
some clouds
clear
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
clear
some clouds
some clouds
mod rain
light rain
cloudy
some clouds
cloudy
some clouds
light rain
heavy rain
heavy rain
rain shwrs
some clouds
clear
some clouds
some clouds
clear
some clouds
some clouds
clear
clear
cloudy
risk tstorm
 km/h
5
NW
10
NNW
10
NW
20
SSW
20
SW
20
SW
25
SW
25
SW
20
SW
20
SSW
20
SSW
20
SSW
20
SSW
25
WSW
20
WSW
30
N
25
NNE
20
NNE
15
E
15
ESE
20
SE
20
SSE
10
E
40
NW
25
NW
20
NNW
10
NNW
10
SSE
20
SSW
20
SW
25
SW
15
W
15
SW
5
W
10
W
30
N
 mm 
6
1.0
1.0
37
13
2.0
4
max°C
13
8
14
10
13
21
20
18
24
22
20
21
20
23
27
23
7
7
7
7
11
13
13
12
10
9
15
12
15
24
23
23
30
28
24
26
Moonrise
5:29
5:59
6:27
6:55
7:24
7:57
8:36
9:23
10:18
11:21
12:27
1:34
2:39
Moonset
4:18
5:31
6:44
7:59
9:16
10:35
11:52
1:04
2:08
3:00
3:43
4:17
Sunrise
6:58
6:56
6:56
6:54
6:52
6:50
6:50
6:48
6:47
6:45
6:43
6:43
Sunset
7:21
7:22
7:22
7:23
7:24
7:25
7:27
7:27
7:28
7:29
7:30
7:30
7:31
Today's sea temperature in Portsmouth, Southern Branch is 11.6 °C (Statistics for 26 Mar 1981-2005 – mean: 12.1 max: 15.8 min: 8.9°C)
Issued (local time): 7 pm Wednesday 26 Mar 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest