Seavey Island, Portsmouth Harbor (sub) 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 07:11 AM and sunset is at 04:13 PM.
Days 1–3 Weather SummaryMostly dry. Icy conditions (max 3°C on Thu morning, min -13°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NW by Thu afternoon). | Days 4–6 Weather SummaryModerate rain (total 11mm), heaviest on Sun night. Icy conditions (max 6°C on Mon afternoon, min -7°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the W by Mon night). | Days 7–9 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Thu afternoon, min -11°C on Fri afternoon). Mainly fresh winds. | Days 10–12 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 5°C on Mon morning, min -14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||||||||||
Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Mon 5 | ||||||||||||||||||||||||
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 | 2:38PM2.52m | 3:17AM2.37m | 3:28PM2.48m | 4:05AM2.44m | 4:22PM2.42m | 4:57AM2.52m | 5:22PM2.38m | 5:52AM2.62m | 6:26PM2.35m | 6:50AM2.72m | 7:31PM2.37m | 7:49AM2.84m | 8:34PM2.39m | 8:47AM2.92m | 9:35PM2.46m | 9:45AM3.01m | 10:32PM2.54m | 10:41AM3.06m | 11:26PM2.59m | 11:35AM3.06m | 00:19AM2.62m | 12:28PM3.01m | |||||||||||||
Low Tide | 8:26AM0.32m | 8:58PM0.06m | 9:16AM0.29m | 9:44PM0.08m | 10:11AM0.25m | 10:35PM0.10m | 11:10AM0.18m | 11:29PM0.12m | 12:14PM0.09m | 00:28AM0.12m | 1:18PM-0.03m | 1:28AM0.11m | 2:20PM-0.16m | 2:26AM0.09m | 3:19PM-0.26m | 3:25AM0.03m | 4:16PM-0.36m | 4:22AM-0.03m | 5:09PM-0.41m | 5:17AM-0.07m | 6:02PM-0.41m | 6:10AM-0.08m | 6:52PM-0.36m | ||||||||||||
E 9 | ESE 9 | ESE 10 | E 11 | E 10 | E 10 | E 12 | E 12 | E 12 | ESE 12 | E 12 | E 12 | SSE 5 | SE 6 | WSW 4 | WSW 4 | W 4 | W 3 | W 3 | ESE 12 | SSW 4 | SSW 4 | SSW 3 | SSW 4 | WNW 3 | NW 3 | NW 3 | NW 3 | NW 3 | ESE 10 | E 9 | E 9 | S 4 | SE 6 | WSW 3 | |
 |  |  | | |  |  | | | | |  |  | |  | | | | | | | | | | | | | | | | | |  | | | |
some clouds | clear | clear | some clouds | some clouds | cloudy | cloudy | some clouds | clear | clear | some clouds | mod rain | light rain | some clouds | some clouds | cloudy | cloudy | clear | clear | clear | some clouds | cloudy | cloudy | some clouds | clear | clear | clear | clear | clear | clear | some clouds | cloudy | light snow | some clouds | some clouds | |
km/h | |||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 8 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 3 | 0 | -8 | -7 | -7 | -7 | -5 | -4 | -5 | 1 | 0 | 2 | 4 | 6 | 0 | -3 | -4 | -6 | -3 | -2 | -2 | 1 | 2 | 2 | -6 | -9 | -12 | -8 | -8 | -10 | -5 | -2 | 1 | 5 | 5 |
Moonrise | 10:38 | — | — | 10:58 | — | — | 11:18 | — | — | 11:39 | — | — | 12:04 | — | — | 12:35 | — | — | 1:15 | — | — | 2:08 | — | — | — | 3:15 | — | — | 4:32 | — | — | 5:52 | — | — | 7:11 |
Moonset | — | — | 10:00 | — | — | 11:10 | — | — | — | 12:22 | — | — | 1:37 | — | — | 2:56 | — | — | 4:18 | — | — | 5:38 | — | — | 6:49 | — | — | 7:47 | — | — | 8:32 | — | — | 9:05 | — |
 | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — |
 | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:17 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — | — | 4:22 |
Today's sea temperature in Seavey Island, Portsmouth Harbor (sub) is 6.5° C (Statistics for 25 Dec 1981-2005 – mean: 6.2 max: 7.5 min: 4.2°C) | |||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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