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 07:58 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 26°C on Tue afternoon, min 23°C on Tue night). Mainly fresh winds.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 26°C on Mon morning, min 22°C on Fri night). Mainly fresh winds.

Days 8–10 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 26°C on Mon afternoon, min 20°C on Wed night). Winds decreasing (fresh winds from the SSE on Tue morning, calm by Wed night).

Days 11–13 Weather Summary

Mostly dry. Warm (max 27°C on Thu afternoon, min 22°C on Fri night). Wind will be generally light.

Tue
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sun
4
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
5:52PM0.30m
5:49PM0.27m
2:04AM0.28m
5:24PM0.24m
4:18AM0.30m
4:54PM0.22m
6:04AM0.32m
4:09PM0.22m
7:49AM0.34m
9:46AM0.36m
12:16PM0.38m
2:57PM0.39m
4:26PM0.39m
5:26PM0.37m
6:14PM0.33m
Low Tide
9:00AM0.11m
9:52PM0.26m
10:17AM0.13m
9:53PM0.21m
11:35AM0.16m
10:30PM0.15m
1:02PM0.21m
11:20PM0.09m
00:17AM0.04m
1:19AM-0.00m
2:26AM-0.01m
3:39AM-0.01m
4:56AM0.02m
6:17AM0.06m
7:36AM0.10m
Wave
height (m) 
direction
period (s) 
0.9
ESE
8
1
ESE
7
1.1
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.1
SE
7
1.2
ESE
7
1
ESE
7
1.1
SE
7
1
ESE
7
1.1
ESE
7
1
ESE
7
1
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.4
SE
6
1.3
ESE
6
1.3
ESE
6
1.4
SE
6
1.3
ESE
6
1.3
ESE
6
1.2
ESE
7
1.2
ESE
7
0.9
ESE
6
0.9
ESE
7
0.8
ESE
7
0.7
ESE
6
0.6
ESE
6
0.7
ESE
6
0.7
ESE
4
0.6
ESE
6
0.6
ESE
5
0.7
ESE
4
0.6
ESE
4
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
some clouds
clear
clear
some clouds
clear
clear
some clouds
clear
clear
some clouds
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
clear
some clouds
some clouds
cloudy
some clouds
some clouds
clear
risk tstorm
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
 km/h
25
SE
20
SE
25
SSE
30
SE
20
SE
30
SE
25
SE
25
SE
25
SE
25
SE
20
SE
25
SE
30
SE
25
SE
30
SSE
35
SSE
20
SE
30
SSE
35
SE
30
SSE
35
SSE
30
SSE
30
SSE
30
SE
30
SSE
15
E
20
NNE
15
E
5
ESE
20
E
25
ESE
20
SE
20
SE
25
ESE
15
SE
15
ESE
 mm 
4
max°C
26
24
25
25
23
25
25
25
25
25
23
25
25
23
25
25
23
26
26
25
26
26
25
26
26
24
26
27
25
26
26
23
26
26
23
25
Moonrise
3:34
4:10
4:44
5:18
5:53
6:31
7:14
8:04
9:01
10:04
11:10
12:15
1:17
Moonset
2:41
3:44
4:49
5:55
7:04
8:16
9:30
10:43
11:51
12:51
1:41
2:23
Sunrise
6:56
6:56
6:54
6:54
6:52
6:52
6:50
6:50
6:48
6:48
6:48
6:47
Sunset
7:58
7:58
7:59
7:59
8:00
8:00
8:00
8:01
8:01
8:02
8:02
8:04
Today's sea temperature in Portland is 23.2 °C (Statistics for 22 Apr 1981-2005 – mean: 22.6 max: 24.2 min: 20.5°C)
Issued (local time): 6 pm Tuesday 22 Apr 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest