Gerrish Island, Portsmouth Harbor Sea Conditions and Tide Table

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 05:39 AM and sunset is at 07:40 PM.

	Days 1–3 Weather Summary Moderate rain (total 11mm), heaviest on Wed night. Cool air temperatures (max 13°C on Fri afternoon, min 5°C on Fri night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Cool air temperatures (max 16°C on Mon afternoon, min 4°C on Sat night). Wind will be generally light.									Days 7–9 Weather Summary Moderate rain (total 11mm), heaviest on Tue night. Very mild (max 16°C on Tue afternoon, min 7°C on Tue night). Winds decreasing (fresh winds from the S on Tue afternoon, light winds from the NNW by Wed morning).									Days 10–12 Weather Summary Mostly dry. Very mild (max 16°C on Fri afternoon, min 5°C on Fri night). Wind will be generally light.
	Wednesday 29			Thursday 30			Friday 1			Saturday 2			Sunday 3			Monday 4			Tuesday 5			Wednesday 6			Thursday 7			Friday 8			Saturday 9			Sunday 10			Monday 11			Tuesday 12			Wednesday 13			Thu 14
	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 See all maps
High Tide	10:30AM2.71m		10:47PM2.87m		11:15AM2.69m	11:24PM2.90m		11:56AM2.65m	00:00AM2.89m		12:35PM2.59m	00:34AM2.86m		1:12PM2.53m	1:09AM2.82m		1:50PM2.46m	1:45AM2.76m		2:29PM2.39m	2:25AM2.70m		3:10PM2.33m	3:07AM2.63m		3:55PM2.29m	3:54AM2.57m		4:42PM2.28m	4:45AM2.52m			5:33PM2.31m	5:39AM2.50m		6:25PM2.39m	6:37AM2.51m		7:16PM2.51m	7:34AM2.55m		8:06PM2.68m	8:31AM2.62m
Low Tide		4:31PM0.16m		5:02AM-0.01m		5:11PM0.20m	5:43AM-0.03m		5:48PM0.25m	6:22AM-0.02m		6:24PM0.31m	6:59AM0.01m		6:59PM0.38m	7:36AM0.07m		7:35PM0.45m	8:13AM0.14m		8:14PM0.51m	8:53AM0.21m		8:55PM0.56m	9:36AM0.28m		9:41PM0.61m	10:22AM0.33m		10:32PM0.62m		11:11AM0.35m	11:27PM0.60m		12:02PM0.35m	00:25AM0.53m		12:55PM0.31m	1:23AM0.41m		1:46PM0.25m	2:19AM0.24m		2:37PM0.16m
Wave height (m) direction period (s)	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 9	ESE 9	ESE 9	ESE 9	ESE 10	ESE 10	ESE 9	ESE 9	E 9	ESE 9	ESE 8	ESE 8	SSE 5	SE 7	SE 8	SE 7	ESE 9	E 9	ESE 9	SE 5	SE 6	SE 7	SE 8	SE 8	ESE 8	SE 8	ESE 8	SE 7	WNW 3	ESE 12	ESE 12	SE 12	ESE 11	NE 5	ENE 5	E 6	E 6	ESE 10	ESE 10	ESE 10	ESE 10

	cloudy	cloudy	mod rain	light rain	light rain	some clouds	clear	cloudy	some clouds	clear	some clouds	clear	clear	some clouds	clear	clear	cloudy	some clouds	cloudy	cloudy	rain shwrs	cloudy	clear	some clouds	light rain	light rain	rain shwrs	clear	clear	clear	some clouds	cloudy	some clouds	some clouds	cloudy	clear	cloudy	cloudy	clear	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear
km/h	ENE	ENE	E	S	SW	NW	N	WSW	W	W	SSW	W	WSW	WNW	W	SW	S	SSW	S	S	W	ESE	SE	SSE	SSE	SSE	SW	WNW	NW	W	W	W	W	WNW	WNW	W	WNW	NW	NNW	ENE	ESE	NW	SSE	S	W	ESE	SSE
mm	—	—	6	4	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	5	—	—	—	1	2	3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	6	7	8	10	10	11	11	13	10	11	12	11	10	12	9	13	16	15	15	16	15	10	10	10	11	12	13	14	16	12	13	15	11	13	14	12	12	13	11	7	8	7	10	13	12	17	18
Moonrise	—	5:58	—	—	7:03	—	—	8:09	—	—	—	9:15	—	—	10:17	—	—	11:15	—	—	—	12:05	—	—	12:46	—	—	1:21	—	—	1:49	—	—	2:13	—	—	2:35	—	—	2:55	—	—	3:16	—	—	3:38	—
Moonset	4:24	—	—	4:44	—	—	5:07	—	—	5:33	—	—	6:05	—	—	6:44	—	—	7:32	—	—	8:27	—	—	9:28	—	—	10:34	—	—	11:41	—	—	12:49	—	—	1:58	—	—	—	3:08	—	—	4:22	—	—	5:39
	5:39	—	—	5:37	—	—	5:37	—	—	5:35	—	—	5:33	—	—	5:33	—	—	5:31	—	—	5:30	—	—	5:28	—	—	5:26	—	—	5:26	—	—	5:24	—	—	5:24	—	—	5:22	—	—	5:22	—	—	5:20	—
	—	7:40	—	—	7:42	—	—	7:43	—	—	7:44	—	—	7:45	—	—	7:45	—	—	7:46	—	—	7:49	—	—	7:50	—	—	7:51	—	—	7:52	—	—	7:52	—	—	7:53	—	—	7:54	—	—	7:55	—	—	7:57
	Today's sea temperature in Gerrish Island, Portsmouth Harbor is 7.4° C (Statistics for 29 Apr 1981-2005 – mean: 6.6 max: 8.1 min: 4.9°C)