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 08:24 PM.

Days 1–4 Weather Summary

Moderate rain (total 11mm), heaviest on Sat night. Very warm air temperatures (max 30°C on Thu afternoon, min 26°C on Sat night). Mainly fresh winds.

Days 5–7 Weather Summary

Heavy rain (total 20mm), heaviest during Mon night. Very warm air temperatures (max 30°C on Mon morning, min 27°C on Sun night). Mainly fresh winds.

Days 8–10 Weather Summary

Light rain (total 5mm), mostly falling on Thu night. Warm (max 30°C on Wed afternoon, min 27°C on Wed night). Mainly fresh winds.

Days 11–13 Weather Summary

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 30°C on Sat afternoon, min 27°C on Sat night). Mainly fresh winds.

Days 14–17 Weather Summary

Heavy rain (total 57mm), heaviest during Sat morning. Warm (max 30°C on Wed afternoon, min 25°C on Fri night). Winds increasing (light winds from the ESE on Tue night, fresh winds from the SSE by Sat morning).

Thu
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
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
night
Wave Height Map
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High Tide
7:43AM0.32m
9:36AM0.36m
11:24AM0.39m
1:06PM0.41m
2:44PM0.41m
4:18PM0.39m
6:00PM0.35m
8:02PM0.30m
2:32PM0.25m
10:57PM0.26m
1:13PM0.24m
2:59AM0.24m
12:18PM0.26m
11:38AM0.29m
11:29AM0.31m
11:39AM0.32m
Low Tide
9:40PM0.09m
10:31PM0.03m
11:30PM-0.01m
00:33AM-0.04m
1:40AM-0.05m
2:48AM-0.03m
3:55AM0.01m
4:58AM0.06m
5:55AM0.12m
6:14PM0.24m
6:37AM0.18m
7:47PM0.19m
8:50PM0.15m
9:41PM0.12m
10:22PM0.09m
Wave
Height (m)
Direction
Period (s)
0.9
ESE
6
1.2
ESE
6
1.1
SE
7
1
SE
7
1.2
SE
7
1.1
SE
7
1.3
SE
8
1.5
SE
8
1.4
SE
8
1.4
SE
8
1.3
SE
8
1.1
SE
7
1
SE
7
0.9
SE
7
0.9
SE
7
0.8
SE
7
1
SE
6
1.1
SE
6
1.3
SE
6
1.6
SE
6
1.5
SE
7
1.6
SE
7
1.7
SE
8
1.6
SE
8
1.5
SE
8
1.6
SE
8
1.5
SE
8
1.2
SE
8
1.4
SE
7
1.3
SE
7
1.1
SE
7
1.1
SE
6
1
SE
6
1
SE
6
1
SE
6
0.8
SE
6
0.8
SE
6
0.9
SE
7
0.8
SE
7
0.8
SE
7
0.9
SE
7
0.7
SE
6
0.7
SE
6
0.9
SE
7
0.8
SE
8
1.1
SE
8
1.8
SE
7
clear
clear
clear
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
risk tstorm
some clouds
risk tstorm
risk tstorm
risk tstorm
risk tstorm
some clouds
clear
risk tstorm
risk tstorm
cloudy
risk tstorm
some clouds
some clouds
some clouds
some clouds
some clouds
risk tstorm
risk tstorm
some clouds
some clouds
some clouds
some clouds
clear
clear
some clouds
clear
clear
clear
some clouds
risk tstorm
risk tstorm
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
rain shwrs
km/h
25
SE
25
SSE
20
SE
25
ESE
25
SE
20
SE
30
ESE
25
SE
25
SE
25
SE
20
SE
20
SSE
20
SE
15
SSE
15
S
15
SE
20
SSE
30
S
35
SSE
30
SSE
35
SSE
35
SE
30
SSE
35
SSE
30
SE
30
SSE
30
SSE
25
SE
30
SSE
30
SSE
30
SE
25
SE
25
SSE
25
SE
20
SE
15
SE
20
ESE
15
SE
10
ESE
20
ESE
15
SE
15
SSE
25
SE
15
SSE
15
SE
25
ESE
30
ESE
2
6
3
1
3
9
2
5
3
2
2
1
16
max °C
30
28
29
29
27
29
29
27
29
29
27
30
30
28
29
30
28
30
30
28
30
29
28
30
30
28
30
30
28
29
29
28
29
29
28
28
29
28
29
30
27
30
29
28
29
28
26
Moonrise
3:56
4:44
5:42
6:48
8:00
9:12
10:21
11:26
12:27
1:24
2:20
3:15
4:11
5:07
6:03
Moonset
4:53
6:04
7:17
8:29
9:34
10:31
11:17
11:57
12:31
1:02
1:31
2:01
2:31
3:05
3:42
Sunrise
6:31
6:31
6:31
6:31
6:31
6:33
6:33
6:33
6:33
6:33
6:33
6:33
6:33
6:33
6:35
Sunset
8:24
8:24
8:25
8:25
8:25
8:27
8:27
8:27
8:27
8:28
8:28
8:28
8:28
8:28
8:29
8:29
Today's sea temperature in Portland is
29.3° C
(Statistics for 11 Jun 1981-2005 – mean: 27.6 max: 28.6 min: 27.0°C)
Issued (local time): 6 pm Thursday 11 Jun 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest