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 06:39 AM and sunset is at 04:57 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 15°C on Wed afternoon, min 7°C on Wed morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 20°C on Sun morning, min 8°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Moderate rain (total 11mm), heaviest on Tue morning. Very mild (max 10°C on Thu afternoon, min 5°C on Tue night). Wind will be generally light.

Days 10–12 Weather Summary

Some drizzle, heaviest during Sat afternoon. Very mild (max 19°C on Sun morning, min 6°C on Fri morning). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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
3:05PM0.91m
3:43AM0.83m
4:07PM0.87m
4:45AM0.86m
5:04PM0.84m
5:39AM0.90m
5:55PM0.82m
6:27AM0.94m
6:40PM0.82m
7:09AM0.98m
7:22PM0.82m
7:48AM1.00m
8:01PM0.81m
8:25AM1.01m
8:39PM0.81m
9:01AM1.01m
9:16PM0.80m
9:36AM1.01m
9:52PM0.79m
10:11AM0.99m
10:30PM0.77m
10:48AM0.97m
11:09PM0.76m
Low Tide
8:43AM0.14m
9:36PM0.12m
9:53AM0.16m
10:30PM0.12m
10:58AM0.16m
11:20PM0.11m
11:56AM0.15m
00:04AM0.09m
12:47PM0.12m
00:45AM0.08m
1:32PM0.11m
1:23AM0.07m
2:14PM0.10m
2:00AM0.07m
2:53PM0.10m
2:36AM0.07m
3:32PM0.10m
3:12AM0.08m
4:10PM0.12m
3:48AM0.10m
4:48PM0.13m
4:25AM0.12m
5:26PM0.15m
5:04AM0.14m
Wave
height (m) 
direction
period (s) 
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
mod rain
rain showers
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
rain showers
clear
clear
clear
part cloud
clear
clear
some clouds
some clouds
clear
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
mod rain
rain shwrs
some clouds
clear
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
cloudy
rain shwrs
clear
clear
clear
some clouds
 km/h
25
WSW
20
WSW
15
W
20
WNW
15
W
10
NW
10
NW
10
W
5
WSW
5
SSW
10
SSW
25
SW
30
WSW
20
WNW
20
WNW
20
WNW
15
WNW
5
SW
10
ESE
15
NW
20
N
20
N
10
NNW
15
NNW
15
N
10
WNW
15
NNW
10
N
5
WSW
15
SSW
25
SSW
25
SW
20
SW
20
WNW
15
WNW
10
WSW
 mm 
9
2
1
max°C
13
15
12
12
14
11
12
15
12
16
19
18
20
19
13
12
13
11
7
8
7
7
9
8
8
10
9
9
10
10
14
17
18
19
19
16
Moonrise
12:21
1:23
2:22
3:21
4:19
5:18
6:18
7:19
8:18
9:13
10:03
Moonset
1:18
1:44
2:07
2:29
2:51
3:15
3:42
4:12
4:49
5:32
6:22
7:18
Sunrise
6:39
6:41
6:41
6:43
6:43
6:45
6:46
6:47
6:48
6:48
6:50
6:50
Sunset
4:57
4:57
4:55
4:54
4:54
4:53
4:52
4:52
4:52
4:52
4:51
4:51
Today's sea temperature in Portsmouth, Southern Branch is
15.6° C
(Statistics for 12 Nov 1981-2005 – mean: 16.8 max: 19.2 min: 15.1°C)
Issued (local time): 6 am Wednesday 12 Nov 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest