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 05:11 AM and sunset is at 08:21 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Thu night. Very warm air temperatures (max 34°C on Tue afternoon, min 16°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Sat night. Warm air temperatures (max 25°C on Fri afternoon, min 17°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 4mm), mostly falling on Wed morning. Warm (max 26°C on Tue afternoon, min 15°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Sat night. Warm (max 28°C on Fri afternoon, min 17°C on Thu morning). Wind will be generally light.

Days 13–16 Weather Summary

Moderate rain (total 14mm), heaviest on Sun night. Warm (max 22°C on Sun afternoon, min 15°C on Mon night). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wed
29
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
AM
PM
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
11:38AM2.92m
11:47PM3.51m
12:32PM3.00m
00:43AM3.49m
1:25PM3.05m
1:37AM3.41m
2:17PM3.07m
2:31AM3.27m
3:09PM3.05m
3:25AM3.09m
4:00PM3.01m
4:20AM2.89m
4:51PM2.94m
5:17AM2.70m
5:44PM2.86m
6:16AM2.54m
6:38PM2.79m
7:17AM2.43m
7:33PM2.75m
8:17AM2.37m
8:27PM2.74m
9:13AM2.37m
9:19PM2.77m
10:04AM2.40m
10:06PM2.83m
10:48AM2.45m
10:49PM2.88m
11:28AM2.51m
Low Tide
5:23AM-0.37m
5:30PM-0.01m
6:17AM-0.42m
6:26PM-0.06m
7:09AM-0.41m
7:21PM-0.07m
8:00AM-0.34m
8:17PM-0.03m
8:50AM-0.23m
9:12PM0.03m
9:41AM-0.07m
10:09PM0.12m
10:31AM0.11m
11:07PM0.21m
11:23AM0.28m
00:06AM0.29m
12:17PM0.44m
1:06AM0.34m
1:13PM0.55m
2:06AM0.36m
2:09PM0.61m
3:02AM0.34m
3:02PM0.61m
3:52AM0.29m
3:50PM0.58m
4:37AM0.24m
4:34PM0.52m
5:17AM0.18m
5:14PM0.46m
Wave
Height (m)
Direction
Period (s)
0.8
S
6
0.9
S
5
1.1
SSE
7
0.6
SSE
8
0.6
SSE
8
0.4
SE
9
0.4
SE
15
0.4
SE
15
0.5
SE
15
0.4
SE
15
0.5
SE
14
0.4
SE
14
0.4
SE
14
0.5
SE
13
0.4
SE
13
0.9
SSE
4
0.8
SSE
5
0.8
SSE
6
0.8
SSE
7
0.9
SSE
8
0.7
SSE
9
0.6
SSE
8
0.8
SSE
8
0.8
SSE
8
0.8
SSE
5
0.7
SSE
8
0.7
SSE
7
0.7
SSE
7
0.9
SSE
7
1.1
S
5
0.8
SSE
8
1.1
S
4
0.9
SSE
6
0.6
SE
7
0.5
SE
7
0.5
SE
7
0.6
SE
7
0.6
SE
7
0.6
SE
6
0.7
SE
6
0.8
SE
6
1
ESE
6
0.8
ESE
7
0.8
SE
7
0.8
SSE
8
0.7
SSE
7
0.6
SSE
7
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
rain showers
clear
clear
part cloud
part cloud
cloud
light rain
light rain
rain showers
thunderstorm
clear
part cloud
clear
clear
part cloud
part cloud
light rain
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
rain showers
rain showers
cloud
thunderstorm
mod rain
light rain
part cloud
part cloud
part cloud
cloud
light rain
light rain
cloud
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
rain shwrs
clear
clear
some clouds
some clouds
cloudy
light rain
light rain
rain shwrs
risk tstorm
clear
some clouds
clear
clear
some clouds
some clouds
light rain
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
rain shwrs
rain shwrs
cloudy
risk tstorm
mod rain
light rain
some clouds
some clouds
some clouds
cloudy
light rain
light rain
cloudy
km/h
10
WSW
20
WSW
15
W
15
NW
20
NW
10
W
15
WNW
20
W
10
NW
10
NW
0
E
5
WNW
10
S
15
SW
5
SE
10
SSW
10
SSE
15
WNW
5
WNW
10
S
10
NNW
10
WNW
5
ESE
10
NNE
5
SSW
15
SSE
10
NNW
5
SW
20
S
10
SW
15
SSW
25
S
5
WNW
10
ESE
10
ESE
5
NNE
5
NNE
10
SE
10
ESE
10
E
15
E
5
NNE
10
SSE
15
S
10
SSW
10
SE
5
ESE
 mm
1
1
1
1
1
4
1
5
1
6
2
2
3
max °C
29
34
31
30
31
26
27
31
18
22
25
23
23
24
18
20
25
24
24
25
21
24
26
22
17
21
18
22
24
20
27
28
24
24
24
19
19
22
20
17
17
16
19
20
19
19
19
Moonrise
5:03
6:26
7:48
9:04
10:17
11:27
12:35
1:42
2:49
3:54
4:56
5:53
6:42
7:24
7:57
8:24
Moonset
8:57
9:29
9:55
10:17
10:37
10:56
11:16
11:39
12:05
12:37
1:17
2:05
3:01
4:03
5:10
Sunrise
5:11
5:11
5:13
5:13
5:15
5:16
5:16
5:18
5:18
5:20
5:20
5:22
5:22
5:24
5:24
5:26
Sunset
8:21
8:20
8:19
8:19
8:17
8:16
8:15
8:15
8:14
8:14
8:13
8:12
8:10
8:09
8:08
8:07
Today's sea temperature in Portland is
19.1° C
(Statistics for 14 Jul 1981-2005 – mean: 16.8 max: 18.6 min: 15.0°C)
Issued (local time): 1 am Tuesday 14 Jul 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest