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 04:09 PM.

	Days 1–4 Weather Summary Moderate rain (total 13mm), heaviest on Fri morning. Icy conditions (max 13°C on Fri morning, min -4°C on Fri night). Winds decreasing (near gales from the S on Fri morning, light winds from the W by Sat afternoon).											Days 5–7 Weather Summary Mostly dry. Icy conditions (max 3°C on Wed morning, min -6°C on Sun night). Winds decreasing (fresh winds from the NW on Sun night, light winds from the SW by Tue afternoon).									Days 8–10 Weather Summary Moderate rain (total 19mm), heaviest on Thu night. Freeze-thaw conditions (max 4°C on Thu night, min -1°C on Wed night). Wind will be generally light.									Days 11–13 Weather Summary Mostly dry. Freeze-thaw conditions (max 1°C on Sat afternoon, min -5°C on Sat night). Wind will be generally light.
	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25			Friday 26			Saturday 27			Sunday 28			Monday 29			Tue 30
	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
Wave Height Map See all maps
High Tide
Low Tide
Wave height (m) direction period (s)	SSE 4	SE 5	SE 6	SE 9	SE 11	ESE 12	ESE 11	SSE 6	ESE 9	SSW 5	NNE 5	NW 4	NNW 4	ESE 10	E 10	ESE 10	E 10	NW 3	NW 3	E 9	S 3	SSW 3	SE 6	ESE 9	NNE 3	NE 4	E 7	NNW 4	NE 6	NE 6	ENE 6	ENE 6	NE 6	E 8	NE 4	NE 5

	clear	some clouds	mod rain	rain shwrs	clear	clear	some clouds	some clouds	clear	clear	clear	clear	clear	some clouds	cloudy	some clouds	clear	clear	some clouds	some clouds	light rain	light rain	mod rain	light rain	some clouds	light rain	some clouds	some clouds	clear	clear	clear	some clouds	cloudy	clear	clear	clear
km/h	S	S	SSE	WNW	W	WNW	W	SSW	WSW	W	WNW	WNW	NW	WSW	WSW	SW	WNW	WNW	WNW	SW	SW	SSW	NNW	NNE	N	NE	NW	NW	NNW	NNW	S	WSW	SW	NW	NW	WNW
mm	—	—	8	5	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	3	9	4	—	2	—	—	—	—	—	—	—	—	—	—
max°C	5	12	13	9	1	1	2	4	4	2	-1	-4	-5	-3	1	-1	0	3	2	-1	3	3	4	4	3	4	4	1	-3	-2	-1	-1	-1	0	-2	0
Moonrise	—	—	7:11	—	—	8:02	—	—	8:46	—	—	9:22	—	—	9:51	—	—	10:16	—	—	10:38	—	—	10:58	—	—	11:18	—	—	11:40	—	—	12:05	—	—	12:36
Moonset	—	—	—	3:29	—	—	4:25	—	—	5:27	—	—	6:34	—	—	7:43	—	—	8:52	—	—	—	10:00	—	—	11:10	—	—	—	12:21	—	—	1:36	—	—	2:55
	—	—	7:09	—	—	7:09	—	—	7:09	—	—	7:11	—	—	7:11	—	—	7:11	—	—	7:11	—	—	7:11	—	—	7:11	—	—	7:13	—	—	7:13	—	—	7:13
	4:09	—	—	4:10	—	—	4:10	—	—	4:12	—	—	4:12	—	—	4:13	—	—	4:13	—	—	4:14	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:16	—	—
	Today's sea temperature in Merrimack River Entrance is 7.0° C (Statistics for 18 Dec 1981-2005 – mean: 7.1 max: 9.1 min: 5.2°C)