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 05:35 PM.

Days 1–4 Weather Summary

Light rain (total 8mm), mostly falling on Wed morning. Warm air temperatures (max 24°C on Wed morning, min 6°C on Sun night). Winds decreasing (fresh winds from the NNE on Sun afternoon, light winds from the ESE by Mon night).

Days 5–7 Weather Summary

Light rain (total 3mm), mostly falling on Wed afternoon. Warm air temperatures (max 26°C on Thu afternoon, min 14°C on Thu night). Mainly fresh winds.

Days 8–10 Weather Summary

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

Days 11–13 Weather Summary

Mostly dry. Warm (max 25°C on Tue afternoon, min 21°C on Thu night). Wind will be generally light.

Sun
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Fri
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
Wave Height Map
High Tide
11:09PM0.30m
11:06PM0.31m
11:16PM0.33m
11:39PM0.34m
00:08AM0.34m
00:45AM0.35m
1:23AM0.34m
1:54AM0.34m
2:16AM0.32m
2:17AM0.31m
1:30AM0.30m
00:35AM0.28m
Low Tide
9:36AM0.10m
10:04AM0.09m
10:32AM0.07m
11:04AM0.06m
11:39AM0.05m
12:18PM0.05m
12:50PM0.06m
1:22PM0.07m
1:52PM0.08m
2:21PM0.09m
2:53PM0.11m
Wave
height (m) 
direction
period (s) 
1.4
ENE
6
1.1
E
8
0.9
E
8
0.7
E
7
0.7
E
8
0.6
E
7
0.8
SE
4
0.9
SE
5
0.8
SE
5
0.9
SE
5
1.1
SE
5
0.9
SE
5
0.8
SSE
5
0.9
NE
3
1.2
E
6
0.9
ESE
7
0.7
ESE
7
0.8
ESE
6
0.8
ESE
5
0.9
SE
5
0.8
SE
5
0.6
SE
5
0.6
SE
5
0.5
SE
5
0.5
SE
5
0.6
SE
4
0.5
SE
4
0.4
SE
4
0.6
SE
4
0.4
ESE
5
0.4
ESE
6
0.5
ESE
6
0.5
ESE
6
0.6
ESE
6
0.8
ESE
6
0.9
ESE
5
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
light rain
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
some clouds
clear
clear
some clouds
some clouds
cloudy
cloudy
light rain
risk tstorm
risk tstorm
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
 km/h
35
NNE
20
NNE
15
NNE
15
ENE
10
ESE
15
ESE
20
SE
20
SSE
5
SSE
20
SSE
25
S
20
SSW
15
S
30
NNE
20
NE
15
ENE
15
ESE
20
S
25
SSE
25
S
15
S
15
SE
10
SSE
10
SSE
20
SSE
20
SSE
15
SSE
15
SSE
15
SSE
10
ESE
15
ESE
15
ESE
15
SE
20
SE
20
SSE
20
SSE
 mm 
1
7
3
max°C
12
9
8
11
16
19
20
21
24
24
22
24
26
25
16
17
21
24
25
22
25
25
23
24
25
23
24
25
23
24
24
22
24
24
22
23
Moonrise
3:23
4:18
5:14
6:10
7:05
7:57
8:45
9:27
10:05
10:39
11:11
11:41
Moonset
2:27
3:02
3:41
4:25
5:15
6:09
7:07
8:06
9:05
10:03
11:01
Sunrise
7:11
7:13
7:13
7:13
7:15
7:15
7:16
7:16
7:16
7:16
7:18
7:18
Sunset
5:35
5:36
5:36
5:37
5:37
5:37
5:37
5:37
5:38
5:38
5:39
5:39
Today's sea temperature in Portland is
17.7° C
(Statistics for 14 Dec 1981-2005 – mean: 21.2 max: 22.1 min: 19.3°C)
Issued (local time): 5 pm Sunday 14 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest