Seavey Island, Portsmouth Harbor Sea Conditions and Tide Table

Seavey 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 04:34 PM.

	Days 1–4 Weather Summary A dusting of new snow. Icy conditions (max 1°C on Sat morning, min -5°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Icy conditions (max 3°C on Thu morning, min -9°C on Tue night). Mainly fresh winds.									Days 8–10 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 3°C on Thu afternoon, min -20°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the W by Sat morning).									Days 11–13 Weather Summary A dusting of new snow. Temperatures will be below freezing (max -5°C on Wed afternoon, min -15°C on Sun afternoon). Wind will be generally light.
	Fri 16		Saturday 17			Sunday 18			Monday 19			Tuesday 20			Wednesday 21			Thursday 22			Friday 23			Saturday 24			Sunday 25			Monday 26			Tuesday 27			Wednesday 28			Thursday 29			Friday 30			Saturday 31
	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	night
Wave Height Map See all maps
High Tide		10:13PM2.13m	10:15AM2.55m		10:53PM2.17m	10:54AM2.59m		11:31PM2.23m	11:32AM2.64m		00:07AM2.29m	12:09PM2.67m		00:42AM2.36m	12:48PM2.68m		1:18AM2.43m		1:27PM2.66m	1:58AM2.49m		2:12PM2.59m	2:42AM2.53m		3:02PM2.50m	3:32AM2.56m		4:00PM2.38m	4:28AM2.58m		5:03PM2.28m	5:29AM2.61m		6:12PM2.21m	6:34AM2.65m			7:23PM2.21m	7:41AM2.72m		8:30PM2.27m	8:43AM2.81m
Low Tide	4:00PM0.15m	3:57AM0.41m		4:39PM0.09m	4:36AM0.36m		5:17PM0.03m	5:15AM0.30m		5:53PM-0.02m	5:54AM0.24m		6:29PM-0.05m	6:34AM0.18m			7:06PM-0.07m	7:16AM0.13m		7:45PM-0.06m	8:02AM0.10m		8:28PM-0.02m	8:53AM0.09m		9:16PM0.05m	9:50AM0.09m		10:09PM0.13m	10:51AM0.09m		11:05PM0.21m	11:56AM0.07m		00:07AM0.27m		1:05PM0.02m	1:13AM0.27m		2:13PM-0.06m	2:19AM0.22m		3:14PM-0.16m
Wave height (m) direction period (s)	SE 9	SE 13	SE 11	SE 10	SE 10	SE 9	SE 9	SE 9	SE 8	SE 8	SE 9	W 3	W 4	WSW 3	SE 9	S 5	SW 4	ESE 10	SE 10	ESE 11	ESE 11	NE 5	SE 10	SSE 4	W 4	WNW 4	WNW 3	WNW 3	ESE 10	SE 10	NE 4	SE 11	NW 3	NW 3	W 3	W 3	ESE 10	ESE 10	NNE 3	ENE 5	ESE 7	WNW 4	WNW 4	WNW 4	W 3	WNW 3	W 2

	some clouds	some clouds	light snow	snow shwrs	cloudy	cloudy	cloudy	some clouds	some clouds	some clouds	clear	some clouds	clear	clear	some clouds	cloudy	cloudy	cloudy	light snow	light snow	cloudy	cloudy	cloudy	clear	clear	clear	clear	some clouds	cloudy	light snow	cloudy	some clouds	clear	some clouds	clear	clear	cloudy	light snow	light snow	some clouds	clear	some clouds	clear	clear	clear	clear	clear
km/h	W	SW	WSW	SW	WSW	WSW	W	WNW	WSW	WSW	W	W	W	WSW	SW	SW	SW	SW	SW	W	NNE	ENE	SSE	WSW	W	WNW	WNW	WNW	NNW	NNW	NNW	WNW	WNW	WNW	W	WNW	W	S	N	NW	WNW	WNW	WNW	WNW	WNW	WNW	W
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	-3	-1	1	1	0	1	0	-4	0	-1	-2	-6	-6	-8	-4	2	1	3	3	1	-2	-1	0	1	-5	-13	-14	-14	-14	-11	-10	-10	-8	-7	-8	-6	-5	-5	-3	-2	-7	-15	-15	-14	-7	-6	-7
Moonrise	—	—	6:45	—	—	7:23	—	—	7:55	—	—	8:21	—	—	8:43	—	—	9:03	—	—	9:23	—	—	9:44	—	—	10:07	—	—	10:34	—	—	11:09	—	—	11:55	—	—	12:54	—	—	2:05	—	—	—	3:23	—
Moonset	—	—	—	3:16	—	—	4:23	—	—	5:32	—	—	6:42	—	—	7:52	—	—	—	9:02	—	—	10:13	—	—	11:26	—	—	—	12:41	—	—	2:00	—	—	3:19	—	—	4:32	—	—	5:34	—	—	6:23	—	—
	—	—	7:09	—	—	7:09	—	—	7:09	—	—	7:07	—	—	7:07	—	—	7:07	—	—	7:05	—	—	7:05	—	—	7:03	—	—	7:03	—	—	7:03	—	—	7:01	—	—	7:01	—	—	7:00	—	—	6:58	—	—
	4:34	—	—	4:36	—	—	4:37	—	—	4:37	—	—	4:38	—	—	4:40	—	—	4:42	—	—	4:43	—	—	4:44	—	—	4:45	—	—	4:46	—	—	4:47	—	—	4:50	—	—	4:51	—	—	4:52	—	—	4:53	—
	Today's sea temperature in Seavey Island, Portsmouth Harbor is 4.9° C (Statistics for 16 Jan 1981-2005 – mean: 4.6 max: 5.5 min: 3.4°C)