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 —.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 25°C on Fri afternoon, min 21°C on Wed night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 5mm), mostly falling on Sun night. Warm air temperatures (max 25°C on Sun afternoon, min 5°C on Tue morning). Mainly strong winds.

Days 8–10 Weather Summary

Mostly dry. Warm (max 21°C on Fri afternoon, min 9°C on Tue night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Warm (max 23°C on Mon morning, min 20°C on Fri night). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
1:30AM0.30m
00:35AM0.28m
00:05AM0.27m
8:09AM0.23m
11:43PM0.26m
1:04PM0.23m
11:11PM0.27m
10:32PM0.29m
9:07PM0.33m
9:18PM0.37m
10:34PM0.40m
00:05AM0.41m
1:43AM0.40m
3:22AM0.38m
Low Tide
2:53PM0.11m
3:30PM0.14m
7:09AM0.23m
4:11PM0.17m
6:42AM0.19m
4:51PM0.22m
7:21AM0.14m
8:09AM0.08m
9:06AM0.03m
10:07AM-0.02m
11:10AM-0.04m
12:13PM-0.04m
1:15PM-0.02m
2:14PM0.02m
Wave
height (m) 
direction
period (s) 
0.7
ESE
7
0.7
ESE
8
0.7
ESE
8
0.8
ESE
8
0.7
ESE
7
0.7
ESE
7
0.8
SE
4
0.7
SE
4
0.7
SE
4
1.1
SE
5
1
SE
6
1
SE
6
0.8
SE
6
1.4
NE
5
1.5
ENE
6
1.3
E
7
1.1
E
7
0.7
E
7
0.5
E
7
0.4
E
6
0.3
E
6
0.4
E
6
0.4
E
5
0.4
SSE
3
0.6
SE
4
0.5
SE
4
0.6
SE
4
0.9
SE
4
1
SE
5
0.9
SE
5
0.9
SSE
5
0.9
SE
5
0.7
SE
5
0.8
SE
5
0.6
SE
5
0.5
SE
5
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
light rain
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
light rain
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
some clouds
cloudy
some clouds
clear
 km/h
15
SE
10
SSE
20
SE
15
SSE
10
SSW
20
SSE
20
S
20
SSE
25
SSE
25
SSE
20
SSE
25
SSE
15
S
45
NNE
35
N
25
N
25
N
15
N
5
NNE
10
NE
10
E
10
S
5
S
20
SSE
15
SSE
10
SE
20
SE
20
SE
20
SSE
25
SSE
20
SSE
20
SSE
20
SSE
15
SSE
15
SSE
15
SSE
 mm 
4
1
max°C
22
24
24
22
24
25
22
24
24
22
24
25
23
9
8
8
6
10
10
11
13
15
18
19
19
20
21
21
21
21
21
22
22
22
23
23
Moonrise
11:11
11:41
12:12
12:45
1:21
2:04
2:55
3:54
5:02
6:13
7:24
8:31
Moonset
10:03
11:01
12:00
1:00
2:04
3:12
4:23
5:35
6:44
7:46
8:38
9:21
Sunrise
7:18
7:18
7:18
7:18
7:18
7:18
7:20
7:20
7:20
7:20
7:20
7:20
Sunset
5:39
5:40
5:42
5:42
5:43
5:44
5:44
5:45
5:45
5:46
5:46
5:47
Today's sea temperature in Portland is
20.5° C
(Statistics for 24 Dec 1981-2005 – mean: 20.7 max: 21.8 min: 18.5°C)
Issued (local time): 11 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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