Portland, Casco Bay Sea Conditions and Tide Table

Portland, Casco Bay 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 05:39 AM and sunset is at 07:37 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 13°C on Sun night, min 4°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue night. Cool air temperatures (max 17°C on Mon afternoon, min 5°C on Tue afternoon). Wind will be generally light.

Days 7–9 Weather Summary

Some drizzle, heaviest during Sat night. Very mild (max 18°C on Thu afternoon, min 6°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 13mm), heaviest on Sun afternoon. Very mild (max 16°C on Tue afternoon, min 5°C on Sun afternoon). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
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
Wave Height Map
High Tide
1:36PM2.62m
1:35AM2.99m
2:16PM2.57m
2:16AM2.97m
3:01PM2.53m
3:02AM2.95m
3:51PM2.51m
3:55AM2.91m
4:47PM2.51m
4:55AM2.89m
5:49PM2.56m
6:00AM2.88m
6:52PM2.68m
7:08AM2.91m
7:53PM2.85m
8:14AM2.98m
8:49PM3.05m
9:15AM3.05m
9:42PM3.24m
10:13AM3.11m
10:33PM3.39m
11:07AM3.13m
11:21PM3.48m
Low Tide
7:23AM0.05m
7:25PM0.38m
8:02AM0.05m
8:05PM0.42m
8:45AM0.08m
8:50PM0.46m
9:34AM0.11m
9:42PM0.49m
10:28AM0.13m
10:41PM0.49m
11:28AM0.14m
11:46PM0.45m
12:30PM0.11m
00:54AM0.34m
1:32PM0.05m
2:00AM0.17m
2:30PM-0.02m
3:02AM-0.03m
3:25PM-0.10m
3:59AM-0.22m
4:16PM-0.14m
4:53AM-0.37m
5:06PM-0.14m
Wave
height (m) 
direction
period (s) 
0.4
ESE
9
0.6
ESE
8
0.5
SE
8
0.4
SE
8
0.5
SE
7
0.6
SE
7
0.6
ESE
10
0.7
ESE
10
0.7
ESE
9
0.5
ESE
9
0.4
ESE
10
0.3
ESE
10
0.6
E
4
0.9
ESE
4
1.1
SE
5
0.8
SE
5
0.6
SE
5
0.6
SSE
5
0.6
SSE
5
0.5
ESE
10
0.3
ESE
10
0.3
SE
12
0.3
SE
12
0.4
SE
12
0.6
SE
4
0.8
SE
5
1.1
SE
7
1.4
SE
7
1.6
SE
8
1.5
SE
8
1.2
ESE
8
1.2
ESE
8
0.9
ESE
8
0.7
ESE
8
0.6
ESE
8
0.6
ESE
8
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
light rain
light rain
mod rain
cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
light rain
mod rain
light rain
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
light rain
light rain
mod rain
cloudy
cloudy
light rain
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
light rain
light rain
mod rain
light rain
some clouds
cloudy
some clouds
some clouds
some clouds
clear
 km/h
5
NNW
15
S
5
W
10
ESE
15
SSE
5
SSE
15
S
15
S
10
N
15
NNE
10
S
10
ENE
15
ESE
20
SE
5
ESE
10
E
10
SE
10
SSE
10
W
10
NNW
5
NNW
10
ESE
10
SE
10
ENE
15
E
15
E
10
NE
15
ENE
15
NNE
15
NNW
5
WNW
10
S
10
W
15
NNW
10
WNW
10
WNW
 mm 
1.0
2.0
6
4
1.0
3
7
3
max°C
9
11
7
11
12
9
9
11
13
16
17
14
7
5
6
5
6
7
14
18
16
13
14
10
9
8
7
6
6
7
12
14
14
14
16
13
Moonrise
11:00
12:05
1:02
1:49
2:27
2:57
3:22
3:44
4:06
4:28
4:52
Moonset
6:42
7:22
8:13
9:16
10:28
11:45
1:04
2:23
3:41
5:00
6:20
7:42
Sunrise
5:39
5:37
5:37
5:35
5:33
5:31
5:31
5:28
5:28
5:26
5:24
5:24
Sunset
7:37
7:38
7:39
7:40
7:42
7:44
7:45
7:45
7:46
7:47
7:49
7:51
Today's sea temperature in Portland, Casco Bay is 7.3 °C (Statistics for 26 Apr 1981-2005 – mean: 6.1 max: 7.5 min: 4.3°C)
Nearest