Portsmouth Sea Conditions and Tide Table

Portsmouth 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 07:05 AM and sunset is at 05:30 PM.

Days 1–3 Weather Summary

Moderate rain (total 19mm), heaviest on Sun night. Cool air temperatures (max 12°C on Fri morning, min 8°C on Sun morning). Winds increasing (light winds from the SW on Fri night, strong winds from the SSW by Sun night).

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Mon morning. Cool air temperatures (max 10°C on Mon morning, min 5°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Moderate rain (total 12mm), heaviest on Fri night. Very mild (max 10°C on Fri afternoon, min 4°C on Thu morning). Winds increasing (light winds from the SW on Thu night, strong winds from the S by Fri night).

Days 10–12 Weather Summary

Heavy rain (total 22mm), heaviest during Sun night. Very mild (max 12°C on Tue night, min 6°C on Sun night). Winds increasing (calm on Sun night, gales from the WSW by Tue night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
1
Sunday
2
Monday
3
Tuesday
4
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
5:15PM11.88ft
5:48AM11.98ft
6:30PM11.52ft
7:04AM11.78ft
7:55PM11.75ft
8:26AM12.17ft
9:17PM12.63ft
9:33AM13.09ft
10:10PM13.71ft
10:20AM14.01ft
10:49PM14.6ft
10:56AM14.76ft
11:22PM15.29ft
11:30AM15.32ft
11:54PM15.75ft
12:05PM15.65ft
00:29AM15.98ft
12:43PM15.78ft
1:09AM15.98ft
1:26PM15.62ft
1:54AM15.72ft
2:16PM15.19ft
2:47AM15.16ft
Low Tide
9:46AM6.27ft
10:14PM6.79ft
11:17AM7.05ft
00:16AM7.38ft
1:12PM6.73ft
1:42AM6.79ft
2:13PM5.77ft
2:35AM5.81ft
2:58PM4.56ft
3:18AM4.66ft
3:38PM3.38ft
3:58AM3.54ft
4:17PM2.33ft
4:37AM2.62ft
4:56PM1.57ft
5:17AM1.97ft
5:36PM1.12ft
5:57AM1.64ft
6:17PM1.05ft
6:39AM1.67ft
6:59PM1.38ft
7:22AM2.1ft
7:43PM2.17ft
Wave
height (ft) 
direction
period (s) 
cloud
light rain
light rain
cloud
clear
clear
part cloud
cloud
heavy rain
light rain
part cloud
part cloud
cloud
cloud
part cloud
clear
cloud
light rain
clear
part cloud
rain showers
cloud
light rain
mod rain
rain showers
part cloud
part cloud
cloud
mod rain
heavy rain
part cloud
clear
part cloud
cloud
cloud
light rain
cloudy
light rain
light rain
cloudy
clear
clear
some clouds
cloudy
heavy rain
light rain
some clouds
some clouds
cloudy
cloudy
some clouds
clear
cloudy
light rain
clear
some clouds
rain shwrs
cloudy
light rain
mod rain
rain shwrs
some clouds
some clouds
cloudy
mod rain
heavy rain
some clouds
clear
some clouds
cloudy
cloudy
light rain
 mph
25
S
20
SSW
10
SSW
5
W
10
WSW
5
SW
20
SSW
25
SSW
30
SSW
10
SW
10
SW
10
WSW
5
WNW
5
NNW
10
NW
5
W
10
SW
5
NNW
10
NNW
10
W
5
SW
20
SSW
20
SSW
30
S
25
SSW
15
W
15
WSW
15
WSW
30
SW
10
NNE
5
WSW
25
WSW
25
WSW
35
SW
35
SW
40
SW
 in 
0.2
0.1
0.5
0.08
0.1
0.08
0.04
0.3
0.08
0.3
0.5
0.08
max°F
54
54
52
50
52
50
48
52
50
50
50
48
48
48
45
46
48
45
45
46
45
48
50
48
50
46
45
48
48
45
48
50
48
52
52
54
Moonrise
2:46
3:54
4:53
5:39
6:13
6:37
6:56
7:11
7:24
7:38
7:53
8:11
Moonset
9:55
10:36
11:32
12:44
2:07
3:35
5:04
6:33
8:01
9:30
11:01
Sunrise
7:05
7:03
7:01
6:58
6:56
6:54
6:52
6:50
6:48
6:46
6:43
6:41
Sunset
5:30
5:32
5:35
5:36
5:37
5:39
5:42
5:43
5:45
5:46
5:47
5:50
Today's sea temperature in Portsmouth is 44 °F (Statistics for 21 Feb 1981-2005 – mean: 47 max: 49 min: 43°F)
Issued (local time): 5 am Friday 21 Feb 2025
Forecast update inUpdates in 1 hr 42 min 25 sUpdate imminent
Nearest