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 07:07 AM and sunset is at 05:55 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 26°C on Sat morning, min 17°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 19°C on Tue morning, min 14°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 27°C on Fri afternoon, min 14°C on Wed morning). Winds increasing (light winds from the ENE on Wed morning, fresh winds from the NW by Fri night).

Days 10–12 Weather Summary

Light rain (total 8mm), mostly falling on Sat night. Very mild (max 15°C on Sat morning, min 12°C on Sat night). Mainly fresh winds.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Fri
8
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
3:56PM1.00m
00:20AM0.81m
4:36PM0.91m
00:17AM0.82m
5:37PM0.82m
11:15PM0.80m
10:23PM0.79m
10:32PM0.77m
11:31AM0.76m
10:46PM0.77m
11:46AM0.89m
11:03PM0.76m
12:11PM1.01m
11:20PM0.77m
12:38PM1.10m
11:38PM0.77m
1:06PM1.16m
11:55PM0.77m
1:33PM1.19m
00:11AM0.77m
2:00PM1.19m
00:25AM0.76m
2:27PM1.18m
00:37AM0.74m
2:54PM1.15m
00:45AM0.73m
Low Tide
7:54AM0.13m
9:43PM0.79m
8:20AM0.20m
9:50PM0.80m
8:44AM0.30m
9:29PM0.80m
8:53AM0.44m
7:28AM0.56m
5:23AM0.56m
5:16PM0.60m
5:02AM0.49m
6:01PM0.57m
5:11AM0.40m
6:35PM0.57m
5:30AM0.33m
7:06PM0.57m
7:35PM0.59m
8:03PM0.61m
8:32PM0.63m
9:02PM0.65m
7:16AM0.20m
9:37PM0.67m
7:36AM0.22m
Wave
height (m) 
direction
period (s) 
2.5
SW
13
2.5
WSW
13
2.3
SW
12
1.7
SW
11
1.6
SW
14
1.8
SW
13
2.3
WSW
13
2.3
WSW
13
2.3
SW
13
2.1
SW
13
1.9
SW
12
1.8
SW
12
1.9
SW
13
2.4
SW
14
2.5
SSW
19
3
SSW
18
2.5
SSW
17
3
SW
16
3
SW
15
3
SW
14
2.5
SW
13
2.4
SW
13
2.3
SW
13
2.2
SW
13
2.1
SW
14
1.9
SW
14
2
SW
13
3.5
W
10
4
WSW
13
3.5
WSW
11
3
SW
13
3
SW
12
2.5
SW
12
3
SW
13
3
SW
10
3.5
SW
12
3.5
SW
13
4
SSW
12
4.5
SSW
14
4
SSW
13
3.5
SSW
13
3.5
SSW
13
3
SSW
14
3
SSW
14
3
SSW
14
3
SSW
14
3
SSW
14
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
rain showers
light rain
part cloud
part cloud
cloud
rain showers
part cloud
cloud
rain showers
cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
some clouds
clear
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
rain shwrs
light rain
some clouds
some clouds
cloudy
rain shwrs
some clouds
cloudy
rain shwrs
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
clear
some clouds
some clouds
 km/h
10
N
5
NNE
15
N
20
N
10
NNW
15
N
25
N
15
WNW
5
N
15
W
15
WSW
0
W
5
NW
10
SSW
10
N
15
NW
20
W
10
W
5
ENE
15
SE
10
N
20
N
10
NNW
20
N
25
N
15
N
25
NNE
30
NW
25
WNW
25
NNW
20
WNW
25
W
25
W
30
W
25
WSW
20
W
30
W
20
WSW
15
SW
10
WSW
15
WSW
10
WSW
15
WNW
15
W
10
WNW
10
NW
10
SW
 mm 
4
3
1
1
max°C
24
25
23
23
25
22
26
26
19
18
18
15
18
17
17
19
17
15
18
17
21
24
25
23
26
27
24
15
14
13
14
13
14
14
14
14
14
14
12
13
12
12
14
14
14
15
15
Moonrise
1:30
2:10
2:43
3:10
3:34
3:57
4:19
4:42
5:07
5:37
6:11
6:52
7:39
8:33
9:32
Moonset
10:58
12:10
1:20
2:27
3:31
4:33
5:35
6:37
7:40
8:42
9:42
10:39
11:30
12:14
12:52
Sunrise
7:07
7:07
7:09
7:09
7:09
7:11
7:11
7:13
7:13
7:15
7:16
7:16
7:18
7:18
7:20
7:20
Sunset
5:55
5:54
5:52
5:52
5:51
5:50
5:47
5:46
5:45
5:45
5:44
5:43
5:40
5:39
5:38
5:37
Today's sea temperature in Portland is
16.3° C
(Statistics for 23 Apr 1981-2005 – mean: 15.6 max: 17.0 min: 14.2°C)
Issued (local time): 3 am Thursday 23 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest