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 — and sunset is at 04:05 PM.
Days 1–4 Weather SummaryModerate rain (total 17mm), heaviest on Fri morning. Icy conditions (max 12°C on Fri morning, min -3°C on Fri night). Winds decreasing (strong winds from the SSE on Fri morning, light winds from the W by Sat afternoon). | Days 5–7 Weather SummaryMostly dry. Icy conditions (max 2°C on Wed morning, min -7°C on Mon afternoon). Wind will be generally light. | Days 8–10 Weather SummaryA light covering of new snow, mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Sat morning, min -1°C on Wed night). Wind will be generally light. | Days 11–13 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Sat afternoon, min -6°C on Sat night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | ||||||||||||||||||||||||
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 | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
High Tide | 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 | 6:29AM3.06m | |||||||||||||
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 | 00:07AM0.15m | 12:58PM-0.03m | ||||||||||||
S 4 | SSE 6 | SSE 7 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | S 5 | SSE 7 | SSE 8 | SE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | SSW 4 | ESE 10 | ESE 9 | SE 9 | ESE 11 | SSW 4 | S 5 | S 5 | S 6 | NNE 4 | SSE 10 | S 9 | N 4 | N 4 | SE 7 | SE 7 | SE 7 | SE 8 | SE 11 | NNE 3 | SE 11 | |
 |  |  |  |  |  | |  | | | | | | |  | | | | | | | |  |  | |  | | | | | | | | | | | |
some clouds | light rain | mod rain | rain shwrs | clear | clear | some clouds | some clouds | clear | clear | clear | clear | clear | some clouds | cloudy | some clouds | clear | clear | clear | some clouds | cloudy | cloudy | light snow | light snow | some clouds | snow shwrs | cloudy | some clouds | clear | clear | clear | some clouds | cloudy | clear | clear | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
— | 1 | 9 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 4 | 9 | 12 | 12 | 2 | 0 | 0 | 3 | 4 | 1 | -1 | -4 | -5 | -6 | -3 | -1 | -1 | 2 | 2 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 4 | 0 | -4 | -2 | -2 | -2 | -3 | -2 | -2 | -2 |
Moonrise | — | — | 7:12 | — | — | 8:04 | — | — | 8:47 | — | — | 9:23 | — | — | 9:51 | — | — | 10:15 | — | — | 10:36 | — | — | 10:56 | — | — | 11:15 | — | — | 11:36 | — | — | 12:01 | — | — | 12:31 |
Moonset | — | — | — | 3:23 | — | — | 4:19 | — | — | 5:21 | — | — | 6:29 | — | — | 7:38 | — | — | 8:48 | — | — | — | 9:57 | — | — | 11:08 | — | — | — | 12:20 | — | — | 1:36 | — | — | 2:56 |
 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 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