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 07:09 AM and sunset is at 04:05 PM.
Days 1–3 Weather SummaryModerate rain (total 13mm), heaviest on Fri afternoon. Icy conditions (max 12°C on Fri morning, min -3°C on Fri night). Winds increasing (calm on Wed night, strong winds from the S by Fri morning). | Days 4–6 Weather SummaryMostly dry. Icy conditions (max 6°C on Sun morning, min -6°C on Mon morning). Wind will be generally light. | Days 7–9 Weather SummaryA light covering of new snow, mostly falling on Fri afternoon. Freeze-thaw conditions (max 2°C on Tue night, min -6°C on Wed afternoon). Wind will be generally light. | Days 10–12 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max -4°C on Fri night, min -14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Mon 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 | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
High Tide | 9:46AM2.88m | 10:27PM2.51m | 10:25AM2.90m | 11:07PM2.52m | 11:03AM2.92m | 11:45PM2.52m | 11:40AM2.94m | 00:22AM2.52m | 12:16PM2.94m | 00:57AM2.53m | 12:54PM2.93m | 1:35AM2.55m | 1:34PM2.89m | 2:15AM2.58m | 2:19PM2.84m | 2:59AM2.65m | 3:09PM2.78m | 3:46AM2.73m | 4:04PM2.72m | 4:37AM2.83m | 5:02PM2.67m | 5:31AM2.94m | 6:05PM2.65m | ||||||||||||
Low Tide | 4:15PM0.09m | 4:12AM0.45m | 4:54PM0.07m | 4:49AM0.44m | 5:31PM0.05m | 5:26AM0.42m | 6:06PM0.05m | 6:04AM0.41m | 6:42PM0.04m | 6:42AM0.39m | 7:18PM0.05m | 7:23AM0.38m | 7:58PM0.05m | 8:09AM0.36m | 8:41PM0.07m | 9:00AM0.33m | 9:28PM0.09m | 9:55AM0.27m | 10:18PM0.12m | 10:53AM0.20m | 11:10PM0.14m | 11:54AM0.09m | |||||||||||||
SSE 9 | S 4 | SSE 6 | SSE 8 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | S 5 | SSE 7 | SSE 8 | SE 9 | SE 10 | SE 10 | SE 9 | SSW 4 | SSW 6 | S 6 | N 4 | N 3 | SSE 10 | SSW 4 | S 5 | ENE 4 | ENE 3 | E 4 | ESE 5 | SE 6 | SE 6 | NW 3 | NW 3 | N 4 | NW 3 | SE 12 | SE 11 | |
 | |  |  |  |  | |  |  | | |  | | | |  | | | | | | | | |  |  |  | | | | | | | | | |
clear | clear | rain shwrs | light rain | rain shwrs | some clouds | clear | some clouds | cloudy | clear | clear | clear | clear | clear | some clouds | cloudy | clear | clear | clear | clear | cloudy | cloudy | some clouds | cloudy | light snow | mod snow | snow shwrs | some clouds | some clouds | clear | clear | clear | clear | some clouds | cloudy | |
km/h | |||||||||||||||||||||||||||||||||||
— | — | 1 | 5 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 2 | 3 | 10 | 12 | 8 | 1 | 0 | -1 | 3 | 6 | 3 | -1 | -3 | -5 | -4 | 1 | 2 | 2 | -4 | -5 | -3 | -1 | -1 | -2 | -4 | -3 | -4 | -6 | -6 | -12 | -10 | -9 | -8 | -7 | -5 |
Moonrise | 6:13 | — | — | 7:12 | — | — | 8:04 | — | — | 8:47 | — | — | 9:23 | — | — | 9:51 | — | — | 10:15 | — | — | 10:36 | — | — | 10:56 | — | — | 11:15 | — | — | 11:36 | — | — | 12:01 | — |
Moonset | 2:36 | — | — | — | 3:23 | — | — | 4:19 | — | — | 5:21 | — | — | 6:29 | — | — | 7:38 | — | — | 8:48 | — | — | — | 9:57 | — | — | 11:08 | — | — | — | 12:20 | — | — | 1:36 | — |
 | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — |
 | — | 4:05 | — | — | 4:06 | — | — | 4:06 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:08 | — | — | 4:08 | — | — | 4:09 | — | — | 4:10 | — | — | 4:12 |
Today's sea temperature in Portland, Casco Bay is 6.2° C (Statistics for 18 Dec 1981-2005 – mean: 6.3 max: 7.7 min: 4.5°C) | |||||||||||||||||||||||||||||||||||
Nearest