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 07:37 AM and sunset is at 07:37 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 27°C on Wed afternoon, min 18°C on Sun night). Winds decreasing (strong winds from the SSE on Tue morning, light winds from the WNW by Tue night).

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Sat morning, min 14°C on Wed night). Winds decreasing (fresh winds from the SSE on Fri morning, light winds from the SSE by Fri night).

Days 7–9 Weather Summary

Mostly dry. Warm (max 24°C on Sun morning, min 19°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 28°C on Fri morning, min 20°C on Tue night). Winds increasing (light winds from the SE on Tue night, fresh winds from the S by Fri morning).

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Fri
28
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
10:24AM0.85ft
6:21PM0.89ft
6:28PM0.92ft
6:38PM0.95ft
6:58PM0.98ft
7:08PM0.98ft
7:23PM1.02ft
7:35PM1.02ft
7:57PM1.05ft
8:29PM1.02ft
8:27PM0.92ft
7:51PM0.79ft
Low Tide
1:46PM0.82ft
2:53AM0.46ft
3:38AM0.43ft
4:24AM0.43ft
5:17AM0.43ft
6:19AM0.43ft
7:29AM0.39ft
8:36AM0.33ft
9:43AM0.26ft
10:47AM0.26ft
9:47PM0.92ft
11:51AM0.3ft
10:20PM0.79ft
12:55PM0.39ft
Wave
height (ft) 
direction
period (s) 
2
SE
7
3
SE
4
4.5
SSE
5
5
SSE
6
5
SE
7
5
SE
7
3.5
SE
7
2.5
SE
7
3.5
SE
7
3.5
ESE
7
3
ESE
7
3.5
ESE
4
3.5
SE
5
3.5
SE
6
3.5
SE
6
2.5
ESE
6
2.5
ESE
6
2.5
ESE
6
3
ESE
6
3
SE
6
3
SE
6
3
ESE
6
3.5
ESE
6
3
ESE
6
2.5
ESE
6
2.5
ESE
6
2.5
ESE
6
2
ESE
6
2
ESE
6
2.5
ESE
6
2.5
ESE
6
2.5
ESE
5
4
ESE
6
5
SE
7
5
SE
7
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
some clouds
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
some clouds
clear
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
some clouds
cloudy
some clouds
clear
 mph
10
S
20
SSE
20
SSE
25
S
25
SSE
20
SSE
10
NW
15
NNW
20
NNE
10
NE
15
ESE
15
SE
20
SSE
20
SSE
10
SSE
10
SSE
15
SE
15
SSE
20
S
15
SSE
5
SE
15
NNE
10
E
10
ENE
10
ENE
10
ESE
10
SE
10
SSE
15
SE
10
SE
15
SE
20
SE
10
SSE
25
S
20
SSE
 in 
max°F
72
72
66
70
70
68
77
81
73
63
64
64
70
70
66
75
75
72
75
75
70
70
70
68
72
72
68
73
73
72
72
73
72
82
82
Moonrise
10:51
11:47
12:43
1:41
2:37
3:29
4:17
5:01
5:40
6:16
6:50
Moonset
9:13
9:45
10:21
11:02
11:50
12:44
1:44
2:47
3:53
4:59
6:05
7:12
Sunrise
7:37
7:35
7:33
7:33
7:31
7:31
7:30
7:28
7:28
7:26
7:24
7:24
Sunset
7:37
7:38
7:38
7:39
7:39
7:40
7:42
7:42
7:43
7:43
7:44
7:44
Today's sea temperature in Portland is 71 °F (Statistics for 17 Mar 1981-2005 – mean: 67 max: 70 min: 63°F)
Issued (local time): 12 am Monday 17 Mar 2025
Forecast update inUpdates in 5 hr 50 min 35 sUpdate imminent
Nearest