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 04:13 PM.
Days 1–3 Weather SummaryMostly dry. Icy conditions (max 3°C on Thu morning, min -13°C on Thu night). Winds decreasing (fresh winds from the NW on Thu afternoon, calm by Fri afternoon). | Days 4–6 Weather SummaryA dusting of snow giving way to moderate rain (total 11mm) heaviest on Sun night. Icy conditions (max 6°C on Mon afternoon, min -5°C on Mon night). Winds increasing (calm on Sun night, strong winds from the W by Mon night). | Days 7–9 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Wed morning, min -16°C on Thu night). Winds decreasing (fresh winds from the SW on Wed night, light winds from the SW by Fri afternoon). | Days 10–12 Weather SummaryLight rain (total 3mm), mostly falling on Sat afternoon. Freeze-thaw conditions (max 6°C on Sat morning, min -10°C on Mon night). Winds decreasing (fresh winds from the SW on Sat morning, calm by Sun afternoon). | |||||||||||||||||||||||||||||||||
Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Monday 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 | night | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
High Tide | 2:16PM2.69m | 2:54AM2.52m | 3:06PM2.64m | 3:42AM2.59m | 4:00PM2.58m | 4:34AM2.68m | 5:00PM2.54m | 5:30AM2.79m | 6:04PM2.51m | 6:29AM2.90m | 7:10PM2.53m | 7:28AM3.03m | 8:12PM2.55m | 8:25AM3.12m | 9:13PM2.63m | 9:23AM3.21m | 10:11PM2.71m | 10:19AM3.27m | 11:05PM2.77m | 11:13AM3.27m | 11:57PM2.80m | 12:06PM3.21m | 00:48AM2.80m | |||||||||||||
Low Tide | 8:05AM0.34m | 8:36PM0.07m | 8:55AM0.31m | 9:23PM0.09m | 9:50AM0.26m | 10:13PM0.11m | 10:49AM0.19m | 11:08PM0.13m | 11:53AM0.10m | 00:07AM0.14m | 12:57PM-0.03m | 1:07AM0.11m | 1:59PM-0.17m | 2:05AM0.10m | 2:58PM-0.28m | 3:04AM0.03m | 3:55PM-0.38m | 4:01AM-0.04m | 4:49PM-0.44m | 4:56AM-0.08m | 5:41PM-0.44m | 5:49AM-0.08m | 6:31PM-0.39m | 6:43AM-0.05m | ||||||||||||
ESE 9 | ESE 9 | E 10 | E 11 | E 10 | E 10 | E 12 | E 12 | E 12 | ESE 12 | E 12 | E 11 | SSE 5 | SE 6 | WSW 4 | W 4 | W 4 | W 4 | WSW 3 | SW 3 | SSW 4 | W 3 | NW 3 | NW 3 | E 11 | E 11 | ESE 10 | SSE 5 | SE 7 | SSE 7 | SE 8 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | NE 6 | |
 |  |  | |  |  | | | | | |  |  | |  | | | | | | | | | | | | | | | | | | | | | | |
some clouds | clear | clear | some clouds | cloudy | cloudy | cloudy | clear | clear | clear | some clouds | light snow | light rain | light rain | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | some clouds | clear | clear | some clouds | some clouds | cloudy | cloudy | light rain | clear | clear | cloudy | cloudy | cloudy | some clouds | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 5 | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | |
max°C | 3 | 0 | -8 | -7 | -7 | -6 | -5 | -4 | -4 | 1 | 1 | 3 | 5 | 6 | 1 | -3 | -4 | -4 | 0 | 0 | 0 | -3 | -8 | -12 | -11 | -8 | -1 | 6 | 6 | 4 | 0 | 0 | 0 | 1 | 0 | -5 |
Moonrise | 10:37 | — | — | 10:57 | — | — | 11:17 | — | — | 11:39 | — | — | 12:04 | — | — | 12:35 | — | — | 1:15 | — | — | 2:08 | — | — | — | 3:15 | — | — | 4:31 | — | — | 5:52 | — | — | 7:11 | — |
Moonset | — | — | 10:00 | — | — | 11:10 | — | — | — | 12:21 | — | — | 1:36 | — | — | 2:56 | — | — | 4:18 | — | — | 5:38 | — | — | 6:49 | — | — | 7:47 | — | — | 8:31 | — | — | 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 Gerrish Island, Portsmouth Harbor is 6.7° C (Statistics for 25 Dec 1981-2005 – mean: 6.1 max: 7.4 min: 4.2°C) | ||||||||||||||||||||||||||||||||||||
Nearest