Tides Today & Tomorrow in Boston, MA

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Boston, MA.

Next low tide : in 2h 03m at 12:08 pm (1.3 ft)
Next high tide : 6:23 pm (10.3 ft)
Sunset today : 7:11 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #8443970
Common Questions About Tides

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Boston, MA Tides - Jun 1890

< May 1890

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Jul 1890 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Sun	9:25	9.6	9:38	10.9	3:16	0.2	3:28	0.6	4:09	7:13		1	Sun
2	Mon	10:13	9.8	10:23	11.3	4:04	-0.4	4:14	0.4	4:08	7:14		2	Mon
3	Tue	11:01	9.9	11:10	11.6	4:51	-0.8	5:02	0.2	4:08	7:15		3	Tue
4	Wed	11:51	10.0			5:40	-1.1	5:51	0.2	4:08	7:16		4	Wed
5	Thu	12:00	11.7	12:43	10.0	6:30	-1.2	6:42	0.2	4:07	7:16		5	Thu
6	Fri	12:52	11.6	1:37	10.0	7:22	-1.1	7:36	0.3	4:07	7:17		6	Fri
7	Sat	1:47	11.4	2:33	9.9	8:16	-0.9	8:32	0.5	4:07	7:18		7	Sat
8	Sun	2:44	11.1	3:32	9.9	9:12	-0.6	9:33	0.7	4:06	7:18		8	Sun
9	Mon	3:46	10.6	4:33	9.9	10:11	-0.2	10:36	0.8	4:06	7:19		9	Mon
10	Tue	4:50	10.2	5:34	10.0	11:10	0.1	11:40	0.8	4:06	7:19		10	Tue
11	Wed	5:54	9.9	6:33	10.1			12:08	0.4	4:06	7:20		11	Wed
12	Thu	6:59	9.6	7:30	10.3	12:43	0.7	1:06	0.6	4:06	7:20		12	Thu
13	Fri	8:01	9.5	8:24	10.4	1:45	0.5	2:01	0.8	4:06	7:21		13	Fri
14	Sat	8:58	9.4	9:12	10.5	2:43	0.3	2:53	0.9	4:06	7:21		14	Sat
15	Sun	9:49	9.4	9:57	10.5	3:34	0.1	3:41	1.0	4:06	7:22		15	Sun
16	Mon	10:35	9.3	10:39	10.5	4:21	0.0	4:25	1.1	4:06	7:22		16	Mon
17	Tue	11:19	9.2	11:20	10.4	5:04	0.0	5:07	1.2	4:06	7:22		17	Tue
18	Wed			12:01	9.1	5:46	0.1	5:49	1.4	4:06	7:23		18	Wed
19	Thu	12:01	10.3	12:42	9.0	6:27	0.2	6:31	1.5	4:06	7:23		19	Thu
20	Fri	12:42	10.1	1:23	8.9	7:07	0.4	7:13	1.6	4:06	7:23		20	Fri
21	Sat	1:23	9.9	2:04	8.9	7:48	0.6	7:56	1.7	4:06	7:24		21	Sat
22	Sun	2:06	9.7	2:46	8.8	8:30	0.8	8:41	1.9	4:07	7:24		22	Sun
23	Mon	2:50	9.5	3:30	8.8	9:13	0.9	9:29	1.9	4:07	7:24		23	Mon
24	Tue	3:37	9.3	4:16	8.9	9:58	1.1	10:19	1.9	4:07	7:24		24	Tue
25	Wed	4:27	9.1	5:02	9.1	10:45	1.2	11:11	1.8	4:08	7:24		25	Wed
26	Thu	5:18	8.9	5:48	9.3	11:32	1.3			4:08	7:24		26	Thu
27	Fri	6:10	8.9	6:36	9.7	12:03	1.5	12:21	1.3	4:08	7:24		27	Fri
28	Sat	7:04	8.9	7:25	10.1	12:57	1.1	1:11	1.2	4:09	7:24		28	Sat
29	Sun	7:59	9.1	8:16	10.6	1:51	0.6	2:03	1.0	4:09	7:24		29	Sun
30	Mon	8:53	9.3	9:06	11.1	2:45	0.1	2:55	0.7	4:10	7:24		30	Mon
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8443970)

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Is this week a spring tide or neap tide in Boston, MA?

Boston, MA is currently in a transitional phase. Tonight's moon is 35% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Boston, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Boston, MA?

Tide predictions for Boston, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Boston, MA?

Tide data for Boston, MA is sourced from NOAA Station #8443970. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443970.

What is the moon phase in Boston, MA tonight?

Tonight the moon over Boston, MA is Third Quarter (35% illuminated). This places Boston, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

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