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 04:10 PM.
Days 1–3 Weather SummaryA light covering of new snow, mostly falling on Tue night. Icy conditions (max 2°C on Thu morning, min -12°C on Thu night). Winds increasing (calm on Tue morning, fresh winds from the NNW by Wed morning). | Days 4–6 Weather SummaryA light covering of new snow, mostly falling on Sun afternoon. Icy conditions (max 2°C on Sun night, min -11°C on Fri morning). Winds increasing (light winds from the NW on Sat night, fresh winds from the W by Sun night). | Days 7–9 Weather SummaryMostly dry. Temperatures will be below freezing (max -2°C on Tue morning, min -8°C on Tue night). Winds decreasing (fresh winds from the W on Mon night, light winds from the WSW by Wed night). | Days 10–12 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 1°C on Thu morning, min -17°C on Thu night). Winds decreasing (fresh winds from the W on Thu night, light winds from the NW by Sat night). | |||||||||||||||||||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | Saturday 3 | |||||||||||||||||||||||||
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 | 12:50PM2.76m | 1:30AM2.42m | 1:31PM2.73m | 2:10AM2.47m | 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 | |||||||||||||
Low Tide | 7:14PM0.05m | 7:19AM0.36m | 7:53PM0.06m | 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 | |||||||||||||
ESE 10 | ESE 10 | ESE 9 | N 4 | E 8 | E 9 | ESE 9 | ESE 9 | E 10 | E 10 | E 10 | NE 5 | E 12 | E 12 | E 12 | E 12 | E 12 | SSE 6 | W 4 | WSW 4 | W 4 | W 4 | WNW 3 | W 3 | W 3 | WNW 3 | E 11 | S 3 | S 5 | W 4 | W 4 | W 4 | W 4 | W 4 | W 4 | NW 3 | |
 |  |  |  | |  | |  |  | | | | | | | | |  | | |  | | | | | | | |  | | | | | | | | |
cloudy | light snow | light snow | some clouds | some clouds | cloudy | cloudy | clear | clear | some clouds | cloudy | cloudy | clear | clear | clear | cloudy | light snow | snow shwrs | some clouds | some clouds | some clouds | clear | clear | some clouds | some clouds | clear | clear | cloudy | snow shwrs | clear | some clouds | cloudy | cloudy | some clouds | cloudy | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 0 | 1 | 1 | 0 | -1 | -2 | 2 | 1 | -6 | -7 | -7 | -8 | -7 | -6 | -6 | -4 | 1 | 2 | -4 | -4 | -6 | -2 | -3 | -6 | -3 | -3 | -4 | 1 | 0 | -8 | -14 | -14 | -12 | -9 | -9 | -11 |
Moonrise | 9:51 | — | — | 10:16 | — | — | 10:37 | — | — | 10:57 | — | — | 11:17 | — | — | 11:39 | — | — | 12:04 | — | — | 12:35 | — | — | 1:15 | — | — | 2:08 | — | — | — | 3:15 | — | — | 4:31 | — |
Moonset | — | 7:42 | — | — | 8:51 | — | — | — | 10:00 | — | — | 11:10 | — | — | — | 12:21 | — | — | 1:36 | — | — | 2:56 | — | — | 4:18 | — | — | 5:38 | — | — | 6:49 | — | — | 7:47 | — | — |
 | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 4:10 | — | — | 4:12 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:17 | — | — | 4:19 | — | — | 4:20 | — |
Today's sea temperature in Gerrish Island, Portsmouth Harbor is 6.8° C (Statistics for 23 Dec 1981-2005 – mean: 6.3 max: 7.6 min: 5.0°C) | ||||||||||||||||||||||||||||||||||||
Nearest