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 06:11 AM and sunset is at 07:02 PM.

Days 1–3 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm air temperatures (max 29°C on Thu afternoon, min 13°C on Wed morning). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 22mm), heaviest during Sun afternoon. Warm air temperatures (max 25°C on Mon afternoon, min 14°C on Mon night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 24°C on Tue night, min 14°C on Tue morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 25°C on Sat afternoon, min 15°C on Fri morning). Wind will be generally light.

Days 13–16 Weather Summary

Heavy rain (total 23mm), heaviest during Wed afternoon. Warm (max 23°C on Wed afternoon, min 11°C on Tue morning). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thu
24
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
10:13AM2.87m
10:29PM3.24m
11:04AM3.01m
11:22PM3.26m
11:51AM3.10m
00:11AM3.22m
12:35PM3.14m
00:58AM3.13m
1:17PM3.14m
1:42AM3.00m
1:58PM3.08m
2:27AM2.84m
2:39PM2.98m
3:14AM2.67m
3:23PM2.86m
4:04AM2.51m
4:13PM2.74m
4:59AM2.39m
5:08PM2.65m
5:56AM2.31m
6:05PM2.60m
6:56AM2.29m
7:06PM2.60m
7:56AM2.33m
8:05PM2.65m
8:48AM2.42m
8:57PM2.75m
9:33AM2.55m
Low Tide
4:12PM0.04m
4:50AM-0.18m
5:05PM-0.07m
5:37AM-0.19m
5:56PM-0.14m
6:22AM-0.16m
6:44PM-0.16m
7:04AM-0.07m
7:29PM-0.12m
7:44AM0.06m
8:14PM-0.03m
8:25AM0.22m
8:59PM0.09m
9:08AM0.37m
9:49PM0.23m
9:56AM0.52m
10:42PM0.36m
10:48AM0.63m
11:39PM0.45m
11:45AM0.70m
00:39AM0.49m
12:44PM0.71m
1:40AM0.48m
1:45PM0.66m
2:35AM0.40m
2:40PM0.56m
3:20AM0.30m
3:27PM0.42m
Wave
Height (m)
Direction
Period (s)
0.5
E
4
0.4
SE
8
1.6
S
6
1.3
S
6
1
S
6
0.5
SSE
7
0.4
SSE
8
0.6
SSE
8
0.4
SE
10
0.3
SE
10
0.4
SE
9
0.7
S
4
0.7
S
4
0.7
SSE
4
0.8
SSE
5
0.6
SE
9
0.6
SE
9
0.5
SE
9
0.5
SE
9
1
SSE
4
1
S
5
0.5
S
5
0.4
SSE
4
0.5
SE
13
0.4
SE
13
0.4
SE
12
0.4
SE
12
0.4
SE
12
0.6
S
3
0.5
S
4
0.5
SE
12
0.5
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
9
0.4
SE
9
0.4
SE
8
0.8
ENE
4
0.9
ENE
4
0.7
SE
4
1.9
SSE
6
2.1
SSE
7
1.3
SSE
7
0.9
SE
7
0.9
SE
7
cloud
cloud
light rain
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
heavy rain
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
clear
clear
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
heavy rain
light rain
mod rain
rain showers
clear
clear
cloudy
cloudy
light rain
clear
some clouds
some clouds
clear
clear
clear
clear
clear
clear
some clouds
heavy rain
some clouds
clear
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
clear
clear
some clouds
clear
clear
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
light rain
cloudy
heavy rain
light rain
mod rain
rain shwrs
clear
clear
km/h
10
E
10
SSE
25
SW
20
W
20
WNW
10
NNW
5
WNW
5
W
5
W
10
SSW
15
S
10
SW
15
SSW
15
S
5
W
0
N
10
S
10
NNE
15
S
20
S
10
SW
10
N
5
SSW
10
NNE
5
NW
5
SSW
5
NNW
10
WSW
10
S
5
WNW
10
SW
15
W
5
W
10
ESE
10
E
5
ENE
5
NE
10
SSE
0
NNE
15
NNE
15
ENE
15
SE
30
SSW
25
SW
15
WNW
5
NNE
15
SSE
 mm
4
22
2
11
1
7
2
max °C
15
19
21
27
29
22
17
21
18
22
23
18
19
18
19
23
25
22
20
22
24
23
24
20
17
19
17
20
22
18
22
25
21
19
18
15
17
20
19
14
13
18
21
23
22
17
17
Moonrise
4:15
5:31
6:45
7:56
9:07
10:16
11:25
12:31
1:34
2:29
3:17
3:56
4:28
4:54
5:17
5:37
Moonset
6:20
6:41
7:02
7:22
7:43
8:07
8:35
9:09
9:51
10:41
11:39
12:42
1:48
2:56
4:04
Sunrise
6:11
6:13
6:15
6:16
6:16
6:18
6:18
6:20
6:20
6:22
6:24
6:24
6:26
6:26
6:28
6:28
Sunset
7:02
7:00
6:59
6:57
6:54
6:53
6:52
6:50
6:47
6:45
6:44
6:43
6:40
6:38
6:37
6:35
Today's sea temperature in Portland, Casco Bay is
17.0°C
(Statistics for 09 Sep 1981-2005 – mean: 15.9 max: 17.9 min: 14.6°C)
Issued (local time): 7 am Wednesday 09 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest