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 06:26 AM and sunset is at 06:44 PM.
Days 1–3 Weather SummaryModerate rain (total 17mm), heaviest on Sun night. Cool air temperatures (max 17°C on Mon afternoon, min 10°C on Tue morning). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 21mm), heaviest during Fri night. Cool air temperatures (max 16°C on Fri night, min 9°C on Thu morning). Winds increasing (light winds from the NE on Thu night, fresh winds from the NE by Fri night). | Days 7–9 Weather SummaryHeavy rain (total 31mm), heaviest during Sat morning. Very mild (max 14°C on Sat night, min 9°C on Mon afternoon). Winds increasing (light winds from the NNE on Sat night, strong winds from the ENE by Sun afternoon). | Days 10–12 Weather SummaryMostly dry. Warm (max 20°C on Wed afternoon, min 7°C on Thu night). Wind will be generally light. | Days 13–16 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 7°C on Sat night). Winds decreasing (fresh winds from the WNW on Fri afternoon, light winds from the SW by Sun morning). | |||||||||||||||||||||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Mon 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 | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||||||||||
High Tide | 6:53AM2.15m | 7:01PM2.45m | 7:51AM2.19m | 7:59PM2.50m | 8:43AM2.28m | 8:52PM2.58m | 9:28AM2.40m | 9:38PM2.67m | 10:08AM2.53m | 10:21PM2.76m | 10:45AM2.67m | 11:01PM2.83m | 11:21AM2.81m | 11:41PM2.87m | 11:57AM2.93m | 00:21AM2.89m | 12:35PM3.02m | 1:04AM2.86m | 1:16PM3.08m | 1:50AM2.80m | 2:02PM3.08m | 2:40AM2.70m | 2:52PM3.04m | 3:36AM2.59m | 3:49PM2.96m | 4:38AM2.49m | 4:52PM2.88m | 5:47AM2.45m | 6:03PM2.82m | ||||||||||||||||||
Low Tide | 12:42PM0.68m | 1:35AM0.46m | 1:41PM0.63m | 2:28AM0.41m | 2:35PM0.54m | 3:15AM0.32m | 3:23PM0.41m | 3:55AM0.23m | 4:06PM0.27m | 4:32AM0.13m | 4:47PM0.13m | 5:09AM0.06m | 5:27PM-0.00m | 5:45AM0.00m | 6:08PM-0.11m | 6:23AM-0.02m | 6:51PM-0.18m | 7:04AM-0.01m | 7:36PM-0.20m | 7:48AM0.04m | 8:25PM-0.17m | 8:36AM0.12m | 9:20PM-0.10m | 9:31AM0.22m | 10:20PM-0.01m | 10:32AM0.31m | 11:26PM0.07m | 11:41AM0.36m | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 3 | SE 4 | SE 5 | ENE 5 | ENE 5 | ENE 5 | E 6 | E 6 | E 6 | E 7 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 9 | E 8 | E 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | ESE 10 | E 10 | ESE 10 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | WNW 3 | WNW 3 | WNW 3 | WNW 3 | ESE 10 | ESE 10 | SSE 3 | S 4 | S 4 | SSE 5 |
 |  |  |  |  |  | | | | | |  | | | | | |  |  | | | | |  | | |  | | | | | | | | | | | | | | | | | | | | | |
cloudy | light rain | rain shwrs | clear | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | cloudy | heavy rain | heavy rain | light rain | some clouds | some clouds | cloudy | mod rain | light rain | light rain | light rain | cloudy | cloudy | some clouds | clear | some clouds | some clouds | cloudy | some clouds | some clouds | clear | some clouds | some clouds | some clouds | some clouds | some clouds | clear | clear | some clouds | clear | clear | |
km/h | |||||||||||||||||||||||||||||||||||||||||||||||
mm | — | 5 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 21 | 16 | 1 | — | — | — | 8 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 14 | 14 | 15 | 15 | 17 | 15 | 11 | 12 | 13 | 11 | 11 | 13 | 12 | 13 | 13 | 13 | 15 | 16 | 12 | 13 | 14 | 12 | 11 | 12 | 10 | 10 | 12 | 12 | 13 | 14 | 18 | 20 | 19 | 15 | 19 | 12 | 12 | 13 | 10 | 10 | 12 | 10 | 10 | 13 | 11 | 15 | 17 |
Moonrise | — | 3:55 | — | — | 4:27 | — | — | 4:54 | — | — | 5:17 | — | — | 5:38 | — | — | 5:58 | — | — | 6:19 | — | — | 6:41 | — | — | 7:07 | — | — | 7:39 | — | — | 8:20 | — | — | — | 9:12 | — | — | 10:16 | — | — | 11:29 | — | — | — | 12:46 | — |
Moonset | — | — | — | 12:46 | — | — | 1:52 | — | — | 2:59 | — | — | 4:07 | — | — | 5:16 | — | — | 6:26 | — | — | 7:38 | — | — | 8:52 | — | — | 10:10 | — | — | 11:28 | — | — | 12:43 | — | — | 1:48 | — | — | 2:42 | — | — | — | 3:24 | — | — | 3:57 |
 | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — |
 | — | 6:44 | — | — | 6:42 | — | — | 6:40 | — | — | 6:38 | — | — | 6:37 | — | — | 6:35 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:25 | — | — | 6:23 | — | — | 6:22 | — | — | 6:21 | — | — | 6:19 | — | — | 6:16 |
Today's sea temperature in Gerrish Island, Portsmouth Harbor is 17.4°C (Statistics for 20 Sep 1981-2005 – mean: 16.1 max: 17.3 min: 13.5°C) | |||||||||||||||||||||||||||||||||||||||||||||||
Nearest