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Satellite view of the coast near Boston, MA

Boston, MA tide times

Name: Boston, MA tide data — high & low extrema, next 7 days
Creator: TideTurtle
License: https://www.noaa.gov/disclaimer

Boston, MA tide forecast — heights relative to MLLW.

42.35°N · 71.05°W

Updated Thu 11 Jun

Datum MLLW

Tide rising

2.83m

Next high in 5h 08m

Next high

08:10

2.83 m · in 5h 08m

Next low

14:18

0.24 m · in 11h 16m

Tide · next 12 h0.24 m → 2.82 m

Today

Today's tide times for Boston, MA

Tide times at Boston, MA on Thursday, 11 June 2026: first low tide at 02:03am, first high tide at 08:10am, second low tide at 02:18pm, second high tide at 08:31pm. Sunrise 05:07am, sunset 08:20pm.

Tide curve

Tide chart for Boston, MA

24-hour cosine-interpolated curve around the present moment. Heights relative to MLLW. Predictions: NOAA CO-OPS station 8443970.

Tide MSL (m)H 08:10 · 2.83 m L 14:18 · 0.24 m

Today's conditions

Sun, moon and conditions on Thu 11 Jun

Snapshot at build time — refreshes daily. Sea state from NOAA harmonic predictions.

Sunrise

05:07

Day -9h -47m

Sunset

20:20

Local America/New York

Moon

19%

Waning crescent

Wind

—

Swell

—

no period data

Water

—

no data

7-day outlook

Highs and lows next 7 days

Every predicted high and low for the next week, with the daily tidal coefficient (0–120; higher = bigger swing, > 95 means stronger currents).

Day	Type	Time	Height	Coef.
Wed 10 Jun	H	08:10	2.83 m	76
	L	14:18	0.24 m
	H	20:31	3.25 m
Thu 11 Jun	L	03:01	0.01 m	84
	H	09:08	2.87 m
	L	15:12	0.19 m
	H	21:25	3.40 m
Fri 12 Jun	L	03:57	-0.15 m	92
	H	10:06	2.94 m
	L	16:07	0.12 m
	H	22:18	3.54 m
Sat 13 Jun	L	04:52	-0.29 m	97
	H	11:01	2.99 m
	L	17:01	0.06 m
	H	23:12	3.62 m
Sun 14 Jun	L	05:46	-0.38 m	85
	H	11:57	3.04 m
	L	17:55	0.02 m
Mon 15 Jun	H	00:07	3.65 m	101
	L	06:40	-0.42 m
	H	12:54	3.06 m
	L	18:50	0.01 m
Tue 16 Jun	H	01:03	3.62 m	100
	L	07:34	-0.40 m
	H	13:50	3.08 m
	L	19:45	0.03 m

Coastline

Other spots nearby

The three closest curated TideTurtle locations to Boston, MA, measured by great-circle distance.

Nut Island

11.5 km · Massachusetts

0.3 m15.8°C12.2 m/s

Point Of Pines

11.8 km · South Carolina

0.3 m15.1°C8.0 m/s

Hull

13.1 km · Massachusetts

0.3 m15.8°C11.1 m/s

Fishing & activity windows

Today's solunar windows

Solunar tradition: major periods are the ≈3h windows around moon transit and opposition; minor are ≈2h around moonrise and moonset. Pair with the local tide stage and wind for the best read.

Major (≈3h)

●19:16—22:16

●07:41—10:41

Minor (≈2h)

●01:05—03:05

●15:32—17:32

Spring and neap cycle

Cycle dates near Boston, MA

Next spring tide on Mon 15 Jun (range 4.1m / 13.3ft). Last neap on Wed 10 Jun. Next neap on Tue 23 Jun.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Editorial

About tides at Boston, MA

A short guide to the coastline at Boston, MA — geography, sea state, and what the tide is actually doing under your feet.

4 metres on spring tides. The Atlantic comes in through Massachusetts Bay and Boston Harbor's geometry amplifies it. The pattern is semidiurnal: two highs and two lows roughly equal in size, a fresh cycle every twelve hours and twenty-five minutes.

For anyone walking the HarborWalk, sea-kayaking from Spectacle Island, or watching the harbour seals at low water, the size of the swing changes the day. Tide flats off Wollaston and Squantum open up at low water and re-cover quickly on the flood. The Charles River dam at the head of the harbour decouples the river from the ocean tide, but everything seaward of it cycles fully.

Predictions come from NOAA CO-OPS station 8443970 in the Inner Harbor. Nor'easters can stack water above predicted levels by 30 cm or more, especially when the storm coincides with spring tide and onshore wind.

Common questions

Tide questions about Boston, MA

Quick answers to the most common questions about tide times, range, and water access at Boston, MA.

When is the next high tide at Boston?

The hero block shows the next high tide at Boston Inner Harbor in local Eastern time. The 7-day table below covers all four daily extremes — two highs and two lows — for the next week. For coastal-flood threats during nor'easters, the National Weather Service Boston office is the authoritative source.

Why is the tide range so big at Boston?

Massachusetts Bay funnels the open-Atlantic tide into a smaller area, raising the height of each cycle. The further north you go along the New England coast, the bigger the range becomes, peaking at the head of the Bay of Fundy. Boston's mean range is about 2.9 m — roughly twice the swing at New York Harbor and four times what San Diego sees.

When are the best low tides for clamming in Boston Harbor?

The biggest low tides — well below MLLW reference — cluster around new and full moons. The flats off Quincy, Hull, and the Boston Harbor Islands open up most fully on the lowest spring tides, especially in summer. The 7-day table on this page flags each day's lowest predicted tide; pair that with sunrise time on the sun/moon block above.

Where do these tide predictions come from?

NOAA CO-OPS station 8443970, Boston Inner Harbor. NOAA's harmonic predictions for Boston are calibrated against decades of gauge data and produce times accurate to a few minutes and heights to a few centimetres under normal weather. Storm surge during nor'easters can add 30 cm or more above predicted height.

Is this safe to use for navigation?

No. Use NOAA's authoritative chart products, official tide tables, and USCG notices for piloting. Boston Harbor traffic, the dredged main channel, and the strong currents through the President Roads area need real navigational sources, not a planning tool.

30-day tide table — Boston, MA

Heights relative to MLLW. Predictions: NOAA CO-OPS station 8443970 — heights relative to MLLW.

Day	Type	Time	Height
Thu 11 Jun	Low	02:03	0.2m / 0.6ft
	High	08:10	2.8m / 9.3ft
	Low	14:18	0.2m / 0.8ft
	High	20:31	3.3m / 10.7ft
Fri 12 Jun	Low	03:01	0.0m / 0.0ft
	High	09:08	2.9m / 9.4ft
	Low	15:12	0.2m / 0.6ft
	High	21:25	3.4m / 11.2ft
Sat 13 Jun	Low	03:57	-0.2m / -0.5ft
	High	10:06	2.9m / 9.6ft
	Low	16:07	0.1m / 0.4ft
	High	22:18	3.5m / 11.6ft
Sun 14 Jun	Low	04:52	-0.3m / -1.0ft
	High	11:01	3.0m / 9.8ft
	Low	17:01	0.1m / 0.2ft
	High	23:12	3.6m / 11.9ft
Mon 15 Jun	Low	05:46	-0.4m / -1.3ft
	High	11:57	3.0m / 10.0ft
	Low	17:55	0.0m / 0.1ft
Tue 16 Jun	High	00:07	3.7m / 12.0ft
	Low	06:40	-0.4m / -1.4ft
	High	12:54	3.1m / 10.1ft
	Low	18:50	0.0m / 0.0ft
Wed 17 Jun	High	01:03	3.6m / 11.9ft
	Low	07:34	-0.4m / -1.3ft
	High	13:50	3.1m / 10.1ft
	Low	19:45	0.0m / 0.1ft
Thu 18 Jun	High	02:00	3.5m / 11.6ft
	Low	08:28	-0.3m / -1.1ft
	High	14:46	3.1m / 10.1ft
	Low	20:42	0.1m / 0.3ft
Fri 19 Jun	High	02:57	3.4m / 11.2ft
	Low	09:21	-0.2m / -0.7ft
	High	15:41	3.1m / 10.0ft
	Low	21:39	0.2m / 0.5ft
Sat 20 Jun	High	03:55	3.2m / 10.6ft
	Low	10:16	-0.1m / -0.2ft
	High	16:38	3.0m / 10.0ft
	Low	22:39	0.2m / 0.8ft
Sun 21 Jun	High	04:55	3.1m / 10.0ft
	Low	11:11	0.1m / 0.3ft
	High	17:34	3.0m / 9.9ft
	Low	23:40	0.3m / 1.0ft
Mon 22 Jun	High	05:55	2.9m / 9.5ft
	Low	12:06	0.2m / 0.8ft
	High	18:29	3.0m / 9.8ft
Tue 23 Jun	Low	00:41	0.3m / 1.1ft
	High	06:56	2.8m / 9.0ft
	Low	12:59	0.4m / 1.2ft
	High	19:22	3.0m / 9.7ft
Wed 24 Jun	Low	01:41	0.4m / 1.2ft
	High	07:56	2.6m / 8.7ft
	Low	13:52	0.5m / 1.6ft
	High	20:15	3.0m / 9.7ft
Thu 25 Jun	Low	02:40	0.3m / 1.1ft
	High	08:54	2.6m / 8.5ft
	Low	14:45	0.6m / 1.8ft
	High	21:06	3.0m / 9.7ft
Fri 26 Jun	Low	03:34	0.3m / 1.0ft
	High	09:47	2.6m / 8.4ft
	Low	15:34	0.6m / 1.9ft
	High	21:53	3.0m / 9.8ft
Sat 27 Jun	Low	04:22	0.3m / 0.9ft
	High	10:35	2.6m / 8.5ft
	Low	16:20	0.6m / 1.9ft
	High	22:36	3.0m / 9.9ft
Sun 28 Jun	Low	05:05	0.2m / 0.8ft
	High	11:18	2.6m / 8.5ft
	Low	17:03	0.6m / 1.8ft
	High	23:18	3.0m / 10.0ft
Mon 29 Jun	Low	05:46	0.2m / 0.7ft
	High	12:00	2.6m / 8.6ft
	Low	17:45	0.5m / 1.7ft
	High	23:58	3.1m / 10.0ft
Tue 30 Jun	Low	06:25	0.2m / 0.6ft
	High	12:40	2.6m / 8.7ft
	Low	18:26	0.5m / 1.7ft
Wed 01 Jul	High	00:38	3.1m / 10.1ft
	Low	07:03	0.2m / 0.5ft
	High	13:19	2.7m / 8.8ft
	Low	19:06	0.5m / 1.6ft
Thu 02 Jul	High	01:18	3.1m / 10.1ft
	Low	07:41	0.1m / 0.5ft
	High	13:57	2.7m / 8.8ft
	Low	19:47	0.5m / 1.5ft
Fri 03 Jul	High	01:57	3.1m / 10.0ft
	Low	08:19	0.1m / 0.4ft
	High	14:35	2.7m / 9.0ft
	Low	20:29	0.5m / 1.5ft
Sat 04 Jul	High	02:37	3.0m / 9.9ft
	Low	08:58	0.1m / 0.5ft
	High	15:13	2.8m / 9.1ft
	Low	21:12	0.4m / 1.4ft
Sun 05 Jul	High	03:19	3.0m / 9.8ft
	Low	09:38	0.2m / 0.5ft
	High	15:53	2.8m / 9.3ft
	Low	21:58	0.4m / 1.3ft
Mon 06 Jul	High	04:04	2.9m / 9.6ft
	Low	10:21	0.2m / 0.6ft
	High	16:35	2.9m / 9.6ft
	Low	22:47	0.4m / 1.2ft
Tue 07 Jul	High	04:53	2.9m / 9.4ft
	Low	11:08	0.2m / 0.7ft
	High	17:22	3.0m / 9.8ft
	Low	23:41	0.3m / 1.0ft
Wed 08 Jul	High	05:46	2.8m / 9.2ft
	Low	11:57	0.3m / 0.9ft
	High	18:11	3.1m / 10.1ft
Thu 09 Jul	Low	00:37	0.2m / 0.7ft
	High	06:42	2.8m / 9.1ft
	Low	12:50	0.3m / 0.9ft
	High	19:04	3.2m / 10.4ft
Fri 10 Jul	Low	01:35	0.1m / 0.4ft
	High	07:42	2.7m / 9.0ft
	Low	13:47	0.3m / 0.9ft
	High	20:01	3.3m / 10.8ft