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 06:20 AM and sunset is at 07:46 PM.

Days 1–3 Weather Summary

Light rain (total 7mm), mostly falling on Sat night. Warm air temperatures (max 23°C on Sat afternoon, min 8°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 26°C on Tue afternoon, min 8°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 34mm), heaviest during Fri night. Warm (max 30°C on Wed afternoon, min 13°C on Fri night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Warm (max 24°C on Mon afternoon, min 11°C on Sat morning). Wind will be generally light.

Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
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
Wave Height Map
High Tide
6:51AM0.92m
7:19PM1.01m
7:47AM0.94m
8:12PM1.09m
8:40AM0.96m
9:04PM1.16m
9:32AM0.96m
9:55PM1.19m
10:22AM0.95m
10:45PM1.19m
11:13AM0.93m
11:37PM1.16m
12:05PM0.89m
00:31AM1.09m
12:59PM0.85m
1:28AM1.02m
1:57PM0.81m
2:28AM0.94m
2:59PM0.79m
3:31AM0.88m
4:03PM0.78m
4:35AM0.84m
5:07PM0.80m
Low Tide
1:07PM0.03m
1:45AM-0.02m
1:57PM-0.03m
2:41AM-0.08m
2:46PM-0.08m
3:34AM-0.12m
3:34PM-0.11m
4:27AM-0.14m
4:24PM-0.12m
5:19AM-0.12m
5:14PM-0.11m
6:12AM-0.09m
6:06PM-0.07m
7:06AM-0.03m
7:02PM-0.02m
8:03AM0.03m
8:01PM0.04m
9:02AM0.08m
9:06PM0.09m
10:02AM0.11m
10:14PM0.12m
10:59AM0.13m
11:21PM0.14m
Wave
height (m) 
direction
period (s) 
clear
clear
part cloud
part cloud
part cloud
rain showers
cloud
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
light rain
part cloud
thunderstorm
rain showers
cloud
thunderstorm
thunderstorm
part cloud
clear
clear
part cloud
cloud
light rain
part cloud
clear
thunderstorm
clear
clear
some clouds
some clouds
some clouds
rain shwrs
cloudy
rain shwrs
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
light rain
some clouds
risk tstorm
rain shwrs
cloudy
risk tstorm
risk tstorm
some clouds
clear
clear
some clouds
cloudy
light rain
some clouds
clear
risk tstorm
 km/h
10
E
20
E
10
SE
10
SE
20
ESE
20
SSW
25
SW
10
WSW
25
NNW
20
NNW
15
N
5
WSW
5
NW
5
SE
15
SSW
20
SW
20
SW
25
SW
25
WSW
20
WSW
5
SW
5
W
5
NE
15
SSW
25
SW
25
SW
20
N
25
NNE
20
NNE
15
E
25
E
20
ENE
10
S
10
WNW
10
SSW
10
WSW
 mm 
3
1
3
4
6
8
2
14
4
1
max°C
19
21
17
20
22
21
20
23
17
11
18
17
17
22
18
20
26
24
23
30
20
20
24
20
23
27
19
12
15
13
14
15
17
17
24
23
Moonrise
4:25
4:52
5:20
5:51
6:27
7:11
8:04
9:06
10:14
11:23
12:30
1:34
Moonset
4:18
5:31
6:46
8:05
9:25
10:43
11:53
12:52
1:40
2:17
2:48
Sunrise
6:20
6:18
6:16
6:16
6:15
6:13
6:11
6:11
6:09
6:09
6:07
6:07
Sunset
7:46
7:47
7:49
7:49
7:50
7:51
7:52
7:52
7:53
7:54
7:55
7:55
Today's sea temperature in Portsmouth, Southern Branch is 17.6 °C (Statistics for 24 Apr 1981-2005 – mean: 15.2 max: 18.2 min: 12.3°C)
Issued (local time): 1 am Thursday 24 Apr 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest