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 — and sunset is at 04:07 PM.
Days 1–4 Weather SummaryMostly dry. Icy conditions (max 3°C on Sun night, min -9°C on Tue morning). Mainly fresh winds. | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Icy conditions (max 7°C on Wed night, min -5°C on Sat morning). Mainly fresh winds. | Days 8–10 Weather SummaryMostly dry. Temperatures will be below freezing (max -1°C on Sun afternoon, min -8°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, light winds from the NW by Tue morning). | Days 11–13 Weather SummaryMostly dry. Freeze-thaw conditions (max 6°C on Thu afternoon, min -7°C on Tue afternoon). Winds increasing (light winds from the W on Tue afternoon, fresh winds from the SW by Thu morning). | |||||||||||||||||||||||||||||||||
Sun 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | ||||||||||||||||||||||||
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 | AM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
High Tide | 1:04AM2.77m | 1:13PM3.16m | 2:01AM2.70m | 2:10PM2.99m | 2:58AM2.63m | 3:10PM2.81m | 3:57AM2.58m | 4:12PM2.65m | 4:56AM2.55m | 5:16PM2.51m | 5:53AM2.55m | 6:18PM2.42m | 6:47AM2.56m | 7:17PM2.37m | 7:37AM2.60m | 8:12PM2.35m | 8:23AM2.64m | 9:01PM2.35m | 9:05AM2.68m | 9:45PM2.36m | 9:45AM2.72m | 10:26PM2.37m | 10:22AM2.75m | |||||||||||||
Low Tide | 6:47PM-0.41m | 6:56AM0.03m | 7:41PM-0.28m | 7:54AM0.13m | 8:37PM-0.13m | 8:55AM0.23m | 9:35PM0.02m | 9:58AM0.30m | 10:33PM0.16m | 11:03AM0.35m | 11:30PM0.27m | 12:06PM0.35m | 00:25AM0.35m | 1:05PM0.31m | 1:17AM0.41m | 1:59PM0.26m | 2:06AM0.44m | 2:48PM0.19m | 2:50AM0.45m | 3:32PM0.14m | 3:31AM0.44m | 4:13PM0.09m | 4:09AM0.43m | |||||||||||||
ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | SSE 5 | SSE 6 | S 4 | SSE 7 | WSW 3 | W 3 | SE 10 | SE 9 | SE 8 | SE 8 | SE 8 | W 4 | W 3 | SE 9 | E 15 | NE 4 | NE 5 | NE 5 | SE 10 | SE 9 | ESE 10 | ESE 9 | SE 10 | SW 3 | SW 4 | SW 4 | WSW 4 | SW 4 | SSW 4 | |
 |  |  | |  | | |  |  | |  | | | | | | | | | | | | | | | | | | | | | | | | | | |
some clouds | some clouds | clear | clear | clear | clear | some clouds | cloudy | cloudy | cloudy | light rain | some clouds | clear | some clouds | cloudy | cloudy | cloudy | some clouds | clear | clear | clear | some clouds | some clouds | some clouds | clear | clear | some clouds | some clouds | clear | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 2 | 3 | -4 | -6 | -6 | -9 | -3 | 2 | 1 | 3 | 7 | 3 | 5 | 2 | -3 | 2 | 2 | -3 | -3 | -5 | -7 | -1 | -2 | -4 | -2 | -2 | -7 | -4 | -4 | -3 | 0 | 1 | 3 | 6 | 6 | -5 |
Moonrise | 7:02 | — | — | 8:20 | — | — | — | 9:34 | — | — | 10:44 | — | — | 11:50 | — | — | — | 12:54 | — | — | 1:58 | — | — | 3:01 | — | — | 4:05 | — | — | 5:10 | — | — | 6:13 | — | — | 7:11 |
Moonset | — | — | 10:39 | — | — | 11:07 | — | — | 11:31 | — | — | 11:51 | — | — | 12:09 | — | — | 12:27 | — | — | 12:46 | — | — | 1:07 | — | — | 1:32 | — | — | 2:02 | — | — | 2:41 | — | — | — |
 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 |
 | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:07 | — | — | 4:08 | — | — | 4:08 | — | — |
Today's sea temperature in Gerrish Island, Portsmouth Harbor is 8.2° C (Statistics for 07 Dec 1981-2005 – mean: 7.8 max: 9.3 min: 6.3°C) | ||||||||||||||||||||||||||||||||||||
Nearest