Gerrish Island, Portsmouth Harbor 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 04:32 PM.
Days 1–3 Weather SummaryMostly dry. Air temperatures will be below freezing (max 0°C on Fri afternoon, min -8°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue night, calm by Fri afternoon). | Days 4–6 Weather SummaryLight rain (total 4mm) at first, then becoming colder with a dusting of snow on Sun night. Icy conditions (max 6°C on Sat afternoon, min -7°C on Mon afternoon). Mainly fresh winds. | Days 7–9 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Thu afternoon, min -13°C on Mon night). Mainly fresh winds. | Days 10–12 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Sun afternoon, min -14°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sun 26 | ||||||||||||||||||||||||
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 | 11:48AM2.99m | 00:27AM2.62m | 12:32PM2.91m | 1:08AM2.59m | 1:16PM2.79m | 1:49AM2.56m | 1:59PM2.65m | 2:30AM2.51m | 2:44PM2.51m | 3:12AM2.47m | 3:31PM2.37m | 3:57AM2.43m | 4:23PM2.23m | 4:45AM2.41m | 5:20PM2.14m | 5:38AM2.41m | 6:21PM2.09m | 6:33AM2.44m | 7:21PM2.10m | 7:27AM2.51m | 8:16PM2.16m | 8:18AM2.62m | |||||||||||||
Low Tide | 6:12PM-0.19m | 6:19AM0.12m | 6:54PM-0.10m | 7:03AM0.17m | 7:34PM0.01m | 7:48AM0.23m | 8:15PM0.12m | 8:34AM0.30m | 8:55PM0.25m | 9:22AM0.37m | 9:38PM0.37m | 10:14AM0.42m | 10:24PM0.48m | 11:10AM0.45m | 11:15PM0.56m | 12:10PM0.45m | 00:10AM0.60m | 1:08PM0.39m | 1:06AM0.58m | 2:02PM0.30m | 1:58AM0.52m | 2:51PM0.18m | |||||||||||||
NW 3 | NW 3 | ESE 11 | E 11 | E 10 | E 10 | E 10 | E 10 | SSW 3 | S 5 | SSE 6 | SE 7 | SE 7 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | W 3 | WNW 3 | SW 4 | SW 4 | SW 4 | WSW 4 | WSW 4 | WSW 3 | W 3 | NW 3 | NE 5 | NE 5 | NE 5 | SW 3 | SW 4 | SW 3 | SE 8 | |
 | |  |  |  |  | | | | |  |  | | |  | | | | | | | | | | | | | | | | | | | | | |
clear | clear | clear | some clouds | cloudy | some clouds | clear | clear | some clouds | cloudy | light rain | rain shwrs | clear | cloudy | light snow | some clouds | clear | clear | clear | clear | clear | clear | some clouds | some clouds | clear | some clouds | some clouds | clear | clear | clear | some clouds | clear | some clouds | cloudy | cloudy | |
km/h | |||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | 1.0 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -3 | -3 | -7 | -4 | -2 | -3 | -1 | 0 | 0 | 5 | 6 | 6 | 5 | 1 | -2 | -5 | -6 | -10 | -11 | -9 | -10 | -5 | -4 | -6 | -1 | 0 | -2 | -7 | -7 | -11 | -7 | -4 | -4 | -1 | 0 |
Moonrise | — | 6:29 | — | — | 7:37 | — | — | 8:43 | — | — | — | 9:46 | — | — | 10:48 | — | — | 11:50 | — | — | — | 12:53 | — | — | 1:59 | — | — | 3:05 | — | — | 4:11 | — | — | 5:13 | — |
Moonset | 8:34 | — | — | 8:59 | — | — | 9:19 | — | — | 9:37 | — | — | 9:54 | — | — | 10:11 | — | — | 10:30 | — | — | 10:52 | — | — | 11:18 | — | — | 11:50 | — | — | 12:32 | — | — | 1:26 | — |
 | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — |
 | — | 4:32 | — | — | 4:34 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:38 | — | — | 4:39 | — | — | 4:42 | — | — | 4:43 | — | — | 4:44 | — | — | 4:45 | — | — | 4:46 |
Today's sea temperature in Gerrish Island, Portsmouth Harbor is 5.7 °C (Statistics for 15 Jan 1981-2005 – mean: 4.6 max: 6.3 min: 3.4°C) | |||||||||||||||||||||||||||||||||||
Nearest