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 05:20 AM and sunset is at 08:16 PM.

	Days 1–3 Weather Summary Light rain (total 3mm), mostly falling on Sat night. Warm air temperatures (max 29°C on Sat afternoon, min 18°C on Sun morning). Winds decreasing (fresh winds from the SSW on Sat afternoon, light winds from the NW by Mon morning).									Days 4–6 Weather Summary Moderate rain (total 10mm), heaviest on Tue night. Warm air temperatures (max 27°C on Wed afternoon, min 17°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, light winds from the WSW by Wed night).									Days 7–9 Weather Summary Mostly dry. Warm (max 28°C on Sun afternoon, min 17°C on Fri morning). Wind will be generally light.									Days 10–12 Weather Summary Light rain (total 9mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 18°C on Tue night). Wind will be generally light.									Days 13–16 Weather Summary Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 23°C on Thu afternoon, min 16°C on Sat night). Wind will be generally light.
	Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 1			Sun 2
	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)	ESE 14	S 4	S 4	NNW 3	ESE 13	ESE 12	ESE 12	SSE 3	SSE 4	SE 2	SE 4	ESE 5	SE 6	SE 8	SE 10	SE 8	SE 8	SE 8	ESE 8	SE 7	SE 7	SE 8	ESE 7	SE 7	SE 7	ESE 7	ESE 7	SE 8	SE 8	ESE 8	ESE 10	ESE 7	SE 7	SE 8	ESE 8	ESE 7	ESE 8	ESE 8	ESE 8	ESE 8	ESE 7	E 7	ESE 7	ESE 7	ESE 7	ESE 8	ESE 8

	some clouds	cloudy	rain shwrs	clear	clear	clear	clear	clear	clear	some clouds	cloudy	mod rain	rain shwrs	some clouds	risk tstorm	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	clear	some clouds	clear	clear	some clouds	some clouds	rain shwrs	risk tstorm	risk tstorm	some clouds	some clouds	some clouds	clear	clear	some clouds	clear	some clouds	clear	clear	clear	clear	cloudy	light rain
km/h	SSW	SSW	WSW	NW	NW	WNW	NW	SSE	SW	S	SSE	ESE	SW	SSW	W	WSW	W	N	NE	ENE	NW	SE	SSE	WSW	SW	SSW	WSW	NE	SE	S	SSW	WSW	WNW	N	SW	NNW	ENE	SE	N	E	ESE	ENE	ENE	E	NNE	NE	ENE
mm	—	—	3	—	—	—	—	—	—	—	—	7	1	—	2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	7	1	—	—	—	—	—	—	—	—	—	—	—	—	—	1
max °C	26	29	22	22	26	23	25	25	23	22	24	21	26	27	24	22	26	23	18	19	18	22	24	22	27	28	26	23	22	24	27	24	23	23	25	23	21	23	21	22	23	22	19	20	18	18	17
Moonrise	10:20	—	—	11:29	—	—	12:36	—	—	1:42	—	—	2:48	—	—	—	3:53	—	—	4:55	—	—	5:51	—	—	6:41	—	—	7:22	—	—	7:56	—	—	8:24	—	—	8:48	—	—	—	9:09	—	—	9:29	—	—
Moonset	—	—	10:39	—	—	10:59	—	—	11:20	—	—	11:43	—	—	—	12:11	—	—	12:43	—	—	1:23	—	—	2:11	—	—	3:07	—	—	4:09	—	—	5:15	—	—	6:22	—	—	7:29	—	—	8:35	—	—	9:43	—
	5:20	—	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—	5:26	—	—	5:28	—	—	5:28	—	—	5:30	—	—	5:31	—	—	5:31	—	—	5:33	—	—	5:33	—	—	5:35	—
	—	8:16	—	—	8:16	—	—	8:15	—	—	8:15	—	—	8:14	—	—	8:13	—	—	8:12	—	—	8:10	—	—	8:09	—	—	8:08	—	—	8:07	—	—	8:07	—	—	8:06	—	—	8:05	—	—	8:04	—	—	8:02
	Today's sea temperature in Merrimack River Entrance is 18.8° C (Statistics for 18 Jul 1981-2005 – mean: 18.7 max: 20.6 min: 16.7°C)