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 05:43 AM and sunset is at 07:37 PM.
Days 1–3 Weather SummaryMostly dry. Icy conditions (max 10°C on Sat afternoon, min -2°C on Thu morning). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Cool air temperatures (max 14°C on Tue night, min 7°C on Sun morning). Wind will be generally light. | Days 7–9 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Very mild (max 15°C on Wed morning, min 4°C on Fri night). Wind will be generally light. | Days 10–12 Weather SummarySome drizzle, heaviest during Sun morning. Very mild (max 10°C on Sat morning, min 7°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | |||||||||||||||||||||||||
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 | 12:57PM2.53m | 00:57AM2.83m | 1:34PM2.49m | 1:33AM2.84m | 2:14PM2.44m | 2:14AM2.83m | 2:59PM2.40m | 3:00AM2.80m | 3:49PM2.38m | 3:53AM2.77m | 4:45PM2.38m | 4:53AM2.74m | 5:47PM2.44m | 5:58AM2.74m | 6:50PM2.55m | 7:06AM2.77m | 7:51PM2.71m | 8:12AM2.83m | 8:47PM2.90m | 9:13AM2.90m | 9:40PM3.08m | 10:11AM2.95m | 10:31PM3.22m | |||||||||||||
Low Tide | 6:44AM0.05m | 6:46PM0.33m | 7:20AM0.04m | 7:22PM0.36m | 7:59AM0.05m | 8:02PM0.40m | 8:42AM0.07m | 8:47PM0.44m | 9:31AM0.10m | 9:39PM0.46m | 10:25AM0.12m | 10:38PM0.47m | 11:25AM0.13m | 11:43PM0.43m | 12:27PM0.11m | 00:51AM0.32m | 1:29PM0.05m | 1:57AM0.16m | 2:27PM-0.02m | 2:59AM-0.03m | 3:22PM-0.09m | 3:56AM-0.21m | 4:13PM-0.13m | 4:50AM-0.35m | ||||||||||||
ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | ESE 9 | E 9 | E 12 | E 10 | E 10 | E 9 | ESE 9 | ESE 10 | ESE 10 | E 9 | E 10 | ESE 9 | E 9 | ESE 8 | ESE 8 | ESE 8 | ESE 11 | SE 11 | ESE 9 | ESE 9 | ENE 5 | ENE 5 | E 6 | ENE 6 | ESE 9 | |
 | |  | | | | |  |  |  | |  | | | | | |  | | |  | | | | |  |  | | | | | | | | | | |
clear | clear | clear | clear | clear | clear | clear | some clouds | cloudy | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | mod rain | some clouds | some clouds | rain shwrs | clear | some clouds | some clouds | some clouds | light rain | light rain | some clouds | cloudy | cloudy | light rain | cloudy | cloudy | cloudy | some clouds | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | — | — | 2.0 | — | — | — | — | 1.0 | 1.0 | — | — | — | 1.0 | — | — | — | — | — | |
max°C | 3 | 5 | 5 | 7 | 8 | 8 | 9 | 10 | 9 | 7 | 10 | 11 | 11 | 13 | 12 | 8 | 12 | 14 | 15 | 14 | 12 | 15 | 14 | 11 | 8 | 9 | 8 | 10 | 10 | 9 | 8 | 9 | 9 | 8 | 8 | 8 |
Moonrise | — | — | 9:50 | — | — | 10:59 | — | — | — | 12:04 | — | — | 1:01 | — | — | 1:49 | — | — | 2:27 | — | — | 2:57 | — | — | 3:23 | — | — | 3:46 | — | — | 4:08 | — | — | 4:30 | — | — |
Moonset | 6:15 | — | — | 6:47 | — | — | 7:27 | — | — | 8:18 | — | — | 9:21 | — | — | 10:32 | — | — | 11:49 | — | — | 1:07 | — | — | 2:25 | — | — | — | 3:43 | — | — | 5:01 | — | — | 6:21 | — |
 | 5:43 | — | — | 5:41 | — | — | 5:41 | — | — | 5:39 | — | — | 5:37 | — | — | 5:37 | — | — | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — | — |
 | — | 7:37 | — | — | 7:37 | — | — | 7:38 | — | — | 7:40 | — | — | 7:42 | — | — | 7:43 | — | — | 7:44 | — | — | 7:45 | — | — | 7:45 | — | — | 7:46 | — | — | 7:49 | — | — | 7:50 | — |
Today's sea temperature in Gerrish Island, Portsmouth Harbor is 7.3 °C (Statistics for 25 Apr 1981-2005 – mean: 6.2 max: 7.5 min: 4.8°C) | ||||||||||||||||||||||||||||||||||||
Nearest