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 06:07 AM and sunset is at 08:58 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 25°C on Sun afternoon, min 11°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 28°C on Mon afternoon, min 12°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the SW by Tue night).

Days 7–9 Weather Summary

Mostly dry. Very mild (max 16°C on Thu afternoon, min 13°C on Thu morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 19°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
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
4:01PM0.56m
5:01AM0.83m
5:00PM0.58m
5:07AM0.74m
6:28PM0.61m
2:28AM0.71m
00:51AM0.84m
1:17AM0.96m
1:50AM1.05m
2:17AM1.10m
2:41AM1.11m
3:03AM1.09m
12:39PM0.49m
3:21AM1.06m
1:49PM0.56m
3:38AM1.01m
Low Tide
11:34AM0.42m
9:53PM0.28m
11:49AM0.41m
10:28PM0.40m
12:04PM0.38m
10:56PM0.54m
12:23PM0.34m
12:49PM0.30m
1:36PM0.26m
2:49PM0.22m
4:32PM0.19m
5:46PM0.14m
6:42PM0.11m
10:57AM0.49m
7:29PM0.10m
10:21AM0.48m
8:11PM0.12m
Wave
height (m) 
direction
period (s) 
2.5
SW
12
2.4
SW
12
2.2
SSW
17
2
SW
16
1.9
SW
15
1.7
SW
15
1.3
SW
14
1.1
SW
14
1.7
SW
16
2.2
WSW
14
2.1
WSW
13
1.9
WSW
12
1.9
WSW
11
2.4
WSW
10
3
SW
9
3.5
SW
10
3
SW
12
2.5
SW
12
2
SW
12
1.7
SW
12
1.6
SW
11
1.5
SW
11
1.6
SW
10
1.8
SW
14
1.8
SW
15
1.8
SW
14
1.7
SW
14
1.6
SW
13
1.5
SW
13
1.4
SW
13
1.3
SW
12
1.2
SW
12
1.3
SW
12
1.9
SW
15
2.1
SW
14
2.5
SW
14
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
some clouds
clear
clear
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
some clouds
clear
cloudy
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
 km/h
20
SSE
20
SSE
20
SE
20
ESE
20
SE
15
ENE
5
E
15
SE
10
NE
0
NW
10
SSW
20
WSW
25
WSW
30
SW
30
SSW
25
SSW
25
SSW
15
S
15
SSW
15
S
10
SE
15
SE
20
SE
15
ESE
15
SSE
15
SSE
15
SE
15
SSE
15
SSE
10
SSE
5
S
15
S
5
NW
10
SW
20
S
20
SSE
 mm 
max°C
12
12
12
13
14
14
23
25
20
26
28
19
15
15
13
13
13
13
15
16
15
15
16
14
15
16
15
16
17
15
18
19
16
18
17
14
Moonrise
11:50
12:55
2:03
3:14
4:29
5:47
7:04
8:16
9:16
10:05
10:42
11:13
Moonset
12:19
12:43
1:07
1:32
2:00
2:34
3:17
4:11
5:17
6:32
7:49
9:04
Sunrise
6:07
6:09
6:09
6:09
6:11
6:11
6:13
6:13
6:13
6:15
6:16
6:16
Sunset
8:58
8:59
8:59
8:59
8:59
9:00
9:00
9:00
9:00
9:00
9:00
9:00
Today's sea temperature in Portland is
16.6° C
(Statistics for 26 Dec 1981-2005 – mean: 15.8 max: 16.7 min: 14.5°C)
Issued (local time): 4 am Friday 26 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest