Merrimack River Entrance Sea Conditions and Tide Table

Merrimack River Entrance 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 06:33 AM and sunset is at 05:20 PM.

	Days 1–3 Weather Summary A light covering of new snow, mostly falling on Fri afternoon. Icy conditions (max 2°C on Thu morning, min -4°C on Sat morning). Wind will be generally light.									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Mon morning. Icy conditions (max 1°C on Sun afternoon, min -6°C on Mon night). Winds decreasing (near gales from the NNE on Mon morning, light winds from the WSW by Tue night).									Days 7–9 Weather Summary Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Fri morning).									Days 10–12 Weather Summary A dusting of snow giving way to moderate rain (total 11mm) heaviest on Sat night. Freeze-thaw conditions (max 3°C on Sat night, min -12°C on Mon night). Winds increasing (light winds from the ESE on Sat afternoon, fresh winds from the W by Sun afternoon).
	Thursday 19			Friday 20			Saturday 21			Sunday 22			Monday 23			Tuesday 24			Wednesday 25			Thursday 26			Friday 27			Saturday 28			Sunday 1			Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Fri 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	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM
Wave Height Map See all maps
High Tide
Low Tide
Wave height (m) direction period (s)	E 11	E 10	E 10	E 10	E 9	ESE 5	E 6	E 6	ENE 7	ENE 6	ENE 6	ENE 8	E 10	E 11	E 12	E 11	E 10	E 10	E 10	S 4	SSE 6	SSW 4	W 4	WNW 4	ESE 10	ESE 9	ENE 3	ENE 5	E 6	E 7	ESE 8	E 8	E 9	W 4	WNW 4	W 4	NNE 5	E 11	SSE 3	SE 4	E 13	ESE 13	ENE 6	ENE 7	ENE 7	ENE 6	ENE 6

	clear	clear	some clouds	cloudy	light snow	mod snow	cloudy	some clouds	clear	cloudy	cloudy	light snow	light snow	light snow	light snow	some clouds	clear	some clouds	cloudy	light rain	light rain	clear	clear	clear	some clouds	cloudy	light snow	some clouds	some clouds	light snow	rain shwrs	some clouds	some clouds	cloudy	some clouds	some clouds	cloudy	cloudy	some clouds	cloudy	light rain	heavy snow	mod snow	light snow	some clouds	clear	clear
km/h	NNW	SSW	SSW	SSE	ESE	NE	NNE	NE	N	ENE	ENE	ENE	NNE	N	WNW	NW	W	W	SSW	SSW	SW	W	W	WNW	NW	ESE	NE	NNE	ESE	SSE	W	W	W	WNW	WNW	W	WNW	SSW	S	WSW	SW	NNE	NNE	NNE	NNW	NW	WNW
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2	1	—	—	—	—	—	—	—	—	8	3	—	—	—	—	—	—	—	—	—	2	1	—	—	—	—	—
max°C	2	2	1	2	1	0	-3	0	-1	0	1	1	-3	-2	-2	0	1	-2	2	3	3	3	1	-3	-1	-2	-1	0	0	3	3	0	-6	-8	-6	-7	-7	-5	-1	7	6	2	-1	-3	-3	0	0
Moonrise	7:29	—	—	7:50	—	—	8:12	—	—	8:39	—	—	9:11	—	—	9:53	—	—	10:46	—	—	11:51	—	—	1:05	—	—	2:22	—	—	—	3:39	—	—	4:52	—	—	6:03	—	—	7:11	—	—	8:18	—	—	—
Moonset	—	8:02	—	—	—	9:15	—	—	10:31	—	—	11:49	—	—	—	1:07	—	—	2:21	—	—	3:25	—	—	4:17	—	—	4:58	—	—	5:30	—	—	5:55	—	—	6:17	—	—	6:37	—	—	6:56	—	—	7:16	—
	6:33	—	—	6:33	—	—	6:31	—	—	6:30	—	—	6:28	—	—	6:26	—	—	6:24	—	—	6:22	—	—	6:22	—	—	6:20	—	—	6:18	—	—	6:16	—	—	6:15	—	—	6:13	—	—	6:11	—	—	6:09	—
	—	5:20	—	—	5:21	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:25	—	—	5:27	—	—	5:29	—	—	5:30	—	—	5:30	—	—	5:31	—	—	5:34	—	—	5:35	—	—	5:36	—	—	5:37	—	—	5:37
	Today's sea temperature in Merrimack River Entrance is 3.2° C (Statistics for 19 Feb 1981-2005 – mean: 3.3 max: 4.3 min: 1.9°C)