Portland Sea Conditions and Tide Table

Portland 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 05:46 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 20°C on Sat morning, min 11°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Mon morning, min 13°C on Mon night). Mainly fresh winds.

Days 8–10 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue night, light winds from the WSW by Wed night).

Days 11–13 Weather Summary

Mostly dry. Very mild (max 16°C on Sat morning, min 14°C on Fri night). Wind will be generally light.

Wed
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Thursday
8
Friday
9
Saturday
10
Sunday
11
Mon
12
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
Wave Height Map
High Tide
2:01PM1.21m
11:56PM0.73m
2:31PM1.19m
00:05AM0.77m
3:03PM1.14m
00:20AM0.81m
3:36PM1.07m
00:37AM0.81m
4:13PM0.99m
00:44AM0.79m
4:57PM0.90m
6:12PM0.83m
8:57PM0.79m
11:39AM0.75m
9:55PM0.78m
11:41AM0.87m
10:29PM0.78m
12:02PM0.98m
10:55PM0.77m
12:26PM1.07m
11:17PM0.76m
12:50PM1.13m
Low Tide
8:42PM0.66m
9:01PM0.71m
7:14AM0.12m
9:20PM0.75m
7:43AM0.15m
9:43PM0.77m
8:13AM0.22m
10:23PM0.78m
8:40AM0.33m
8:53AM0.46m
7:23AM0.57m
4:53AM0.56m
4:38PM0.68m
4:43AM0.49m
5:41PM0.64m
4:56AM0.43m
6:21PM0.62m
5:13AM0.37m
6:55PM0.61m
5:31AM0.32m
Wave
height (m) 
direction
period (s) 
2.3
SW
12
2.1
SW
11
1.6
SW
11
1.6
SW
11
1.7
SSW
14
1.6
SW
14
1.5
SW
14
1.7
SSW
15
1.9
SW
14
1.8
SW
13
1.8
SW
12
2
WSW
12
1.8
WSW
12
2.2
WSW
12
3
SW
17
4
SW
16
3.5
SW
15
3.5
SW
14
4
SW
14
5
SW
14
5.5
SW
14
5.5
SW
15
5
SW
14
4.5
SW
14
4
SW
14
3.5
SW
13
3
SW
14
3
SW
14
3
SW
13
2.5
SW
13
2.4
SW
13
2.3
SW
13
2.1
SW
12
2.1
SW
12
2.1
SW
11
1.9
SW
11
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
clear
clear
some clouds
cloudy
some clouds
some clouds
 km/h
20
SSE
20
SSE
10
SE
10
SE
10
NE
10
NNW
5
SW
15
NNW
20
NNW
10
NNW
25
N
25
N
15
N
25
N
30
N
25
WNW
15
WNW
25
NW
30
WNW
30
WSW
30
WSW
30
WSW
20
SW
15
WSW
15
W
15
WNW
20
WNW
20
WNW
10
WNW
10
WNW
10
SW
0
SSE
5
ENE
10
SSE
20
ESE
20
SE
 mm 
2
max°C
14
14
13
13
12
16
17
16
20
22
18
22
23
19
24
24
17
19
18
16
14
13
13
14
14
14
15
15
15
16
16
16
16
15
15
14
Moonrise
10:11
11:23
12:23
1:10
1:48
2:17
2:43
3:05
3:25
3:45
4:06
4:30
4:57
Moonset
7:19
8:20
9:28
10:38
11:47
12:52
1:54
2:54
3:53
4:51
5:50
6:51
Sunrise
7:13
7:15
7:16
7:16
7:18
7:18
7:20
7:20
7:20
7:22
7:22
7:24
Sunset
5:46
5:45
5:45
5:44
5:43
5:40
5:39
5:38
5:37
5:37
5:36
5:35
Today's sea temperature in Portland is 17.2 °C (Statistics for 30 Apr 1981-2005 – mean: 15.5 max: 16.3 min: 14.0°C)
Issued (local time): 3 pm Wednesday 30 Apr 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest