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 06:58 AM and sunset is at 04:04 PM.
Days 1–3 Weather SummaryLight rain (total 9mm) at first, then becoming colder with a dusting of snow on Thu afternoon. Icy conditions (max 4°C on Wed night, min -5°C on Fri night). Winds increasing (calm on Wed morning, fresh winds from the W by Thu night). | Days 4–6 Weather SummaryLight rain (total 6mm), mostly falling on Mon morning. Icy conditions (max 6°C on Mon night, min -8°C on Sat night). Wind will be generally light. | Days 7–9 Weather SummaryHeavy rain (total 30mm), heaviest during Wed night. Freeze-thaw conditions (max 15°C on Wed night, min -2°C on Thu night). Winds increasing (calm on Tue morning, strong winds from the S by Wed night). | Days 10–12 Weather SummaryMostly dry. Freeze-thaw conditions (max 5°C on Sat afternoon, min -2°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | |||||||||||||||||||||||||
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 | 12:38PM2.99m | 1:23AM2.55m | 1:24PM2.97m | 2:10AM2.57m | 2:14PM2.94m | 3:01AM2.61m | 3:10PM2.89m | 3:55AM2.68m | 4:10PM2.84m | 4:53AM2.78m | 5:14PM2.80m | 5:52AM2.91m | 6:20PM2.80m | 6:50AM3.05m | 7:25PM2.81m | 7:47AM3.20m | 8:26PM2.85m | 8:41AM3.32m | 9:24PM2.89m | 9:34AM3.40m | 10:18PM2.90m | 10:25AM3.42m | 11:10PM2.90m | |||||||||||||
Low Tide | 7:08PM0.01m | 7:12AM0.39m | 7:53PM0.02m | 8:02AM0.38m | 8:42PM0.04m | 8:57AM0.36m | 9:35PM0.05m | 9:58AM0.32m | 10:32PM0.07m | 11:02AM0.24m | 11:30PM0.07m | 12:08PM0.12m | 00:29AM0.06m | 1:12PM-0.03m | 1:27AM0.04m | 2:13PM-0.19m | 2:23AM0.01m | 3:10PM-0.32m | 3:17AM-0.01m | 4:04PM-0.41m | 4:09AM-0.01m | 4:55PM-0.43m | 5:00AM0.02m | |||||||||||||
SE 8 | SE 8 | S 6 | SSE 7 | SSE 7 | SSE 12 | SSE 12 | SSE 11 | SSE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SSW 4 | SSW 6 | S 6 | S 6 | S 6 | S 6 | S 8 | S 7 | S 7 | SSE 4 | SSE 8 | SSE 10 | SSE 10 | SSE 11 | SSE 10 | SSE 9 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | |
 |  |  | |  |  | |  | | | |  | | |  |  | |  | | | | |  |  |  | | | | | | | | | | | | |
clear | cloudy | mod rain | cloudy | snow shwrs | clear | clear | some clouds | clear | some clouds | clear | cloudy | cloudy | cloudy | some clouds | light rain | light rain | rain shwrs | cloudy | some clouds | cloudy | cloudy | mod rain | heavy rain | rain shwrs | clear | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | 9 | — | — | — | — | — | — | — | — | — | — | — | — | 2.0 | 2.0 | 2.0 | — | — | — | — | 6 | 23 | 1.0 | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 0 | 3 | 4 | 2 | 2 | 1 | -1 | -3 | -5 | -5 | -5 | -7 | -2 | 1 | 4 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 13 | 15 | 13 | 5 | 0 | 1 | 1 | 0 | 4 | 5 | 2 | 3 | 3 | 2 |
Moonrise | 10:20 | — | — | 10:56 | — | — | 11:25 | — | — | 11:49 | — | — | 12:11 | — | — | 12:31 | — | — | 12:52 | — | — | 1:15 | — | — | 1:43 | — | — | 2:19 | — | — | — | 3:04 | — | — | 4:02 | — |
Moonset | — | 6:59 | — | — | 8:13 | — | — | — | 9:28 | — | — | 10:43 | — | — | 11:58 | — | — | — | 1:14 | — | — | 2:32 | — | — | 3:52 | — | — | 5:14 | — | — | 6:34 | — | — | 7:47 | — | — |
 | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — |
 | — | 4:04 | — | — | 4:04 | — | — | 4:04 | — | — | 4:02 | — | — | 4:02 | — | — | 4:02 | — | — | 4:04 | — | — | 4:04 | — | — | 4:04 | — | — | 4:04 | — | — | 4:04 | — | — | 4:05 | — |
Today's sea temperature in Portland, Casco Bay is 7.7 °C (Statistics for 04 Dec 1981-2005 – mean: 7.3 max: 8.6 min: 5.8°C) | ||||||||||||||||||||||||||||||||||||
Nearest