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 — and sunset is at 06:45 PM.

	Days 1–4 Weather Summary Moderate rain (total 13mm), heaviest on Sun night. Cool air temperatures (max 16°C on Mon afternoon, min 11°C on Mon morning). Winds increasing (light winds from the SE on Sun afternoon, fresh winds from the ENE by Wed morning).											Days 5–7 Weather Summary Heavy rain (total 29mm), heaviest during Fri afternoon. Cool air temperatures (max 15°C on Fri night, min 11°C on Wed night). Winds increasing (moderate winds from the NE on Wed night, strong winds from the NNE by Fri afternoon).									Days 8–10 Weather Summary Some drizzle, heaviest during Sat afternoon. Very mild (max 17°C on Sat afternoon, min 9°C on Sun morning). Winds decreasing (fresh winds from the NE on Sat night, light winds from the NNE by Tue morning).									Days 11–13 Weather Summary Light rain (total 8mm), mostly falling on Fri afternoon. Very mild (max 18°C on Fri morning, min 11°C on Tue night). Wind will be generally light.									Days 14–17 Weather Summary Moderate rain (total 19mm), heaviest on Fri night. Warm (max 20°C on Sat afternoon, min 7°C on Tue morning). Wind will be generally light.
	Sun 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			Monday 5
	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
Low Tide
Wave Height (m) Direction Period (s)	SE 4	NNE 3	NE 5	ENE 5	ENE 5	E 6	E 6	E 6	E 7	E 8	ESE 9	ESE 10	E 10	E 11	E 11	E 11	E 10	E 9	E 9	E 8	E 9	E 10	E 10	E 10	E 11	E 11	E 11	E 11	E 11	E 10	E 10	E 10	E 9	E 9	E 9	E 9	SE 5	SE 7	ESE 8	ESE 9	ESE 8	ESE 8	ESE 8	ESE 8	SE 5	ESE 6	ESE 6

	light rain	mod rain	clear	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	clear	cloudy	some clouds	cloudy	mod rain	heavy rain	light rain	light rain	light rain	some clouds	cloudy	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	clear	some clouds	light rain	light rain	cloudy	cloudy	cloudy	rain shwrs	light rain	light rain	rain shwrs	clear	clear	clear	some clouds	some clouds	some clouds	rain shwrs	clear	clear
km/h	SE	N	NNE	ENE	NE	NE	ENE	ENE	ENE	ENE	NE	NE	NE	NNE	NNE	NNE	NE	NNE	NE	NE	NE	ENE	ENE	NE	ENE	NNE	NE	ENE	N	NE	NNE	NNE	NE	ENE	SSW	SE	SE	SW	SW	SW	WSW	SSW	S	SSE	WSW	W	WNW
mm	3	10	—	—	—	—	—	—	—	—	—	—	—	—	7	16	3	3	1	—	—	—	—	—	—	—	—	—	—	1	2	—	—	—	1	1	5	16	—	—	—	—	—	—	1	—	—
max °C	14	15	14	16	16	11	12	12	12	12	12	12	13	13	12	11	15	14	17	17	10	11	12	11	11	12	11	12	12	12	14	15	16	17	17	18	18	18	18	20	17	17	20	17	18	20	15
Moonrise	3:55	—	—	4:27	—	—	4:54	—	—	5:17	—	—	5:39	—	—	5:59	—	—	6:20	—	—	6:42	—	—	7:08	—	—	7:41	—	—	8:21	—	—	—	9:14	—	—	10:18	—	—	11:30	—	—	—	12:47	—	—
Moonset	—	—	12:47	—	—	1:53	—	—	3:00	—	—	4:08	—	—	5:16	—	—	6:26	—	—	7:38	—	—	8:53	—	—	10:10	—	—	11:28	—	—	12:42	—	—	1:48	—	—	2:42	—	—	—	3:24	—	—	3:57	—
	—	—	6:28	—	—	6:28	—	—	6:31	—	—	6:31	—	—	6:33	—	—	6:33	—	—	6:35	—	—	6:35	—	—	6:37	—	—	6:37	—	—	6:39	—	—	6:41	—	—	6:41	—	—	6:43	—	—	6:43	—	—
	6:45	—	—	6:43	—	—	6:40	—	—	6:38	—	—	6:37	—	—	6:36	—	—	6:34	—	—	6:31	—	—	6:30	—	—	6:28	—	—	6:27	—	—	6:24	—	—	6:22	—	—	6:21	—	—	6:20	—	—	6:17	—
	Today's sea temperature in Merrimack River Entrance is 17.6°C (Statistics for 20 Sep 1981-2005 – mean: 16.7 max: 17.9 min: 13.9°C)