Tides Today & Tomorrow in Boston, MA

TIDE TIMES for Monday, September 28, 2026
The tide is currently rising in Boston, MA.

Next low tide : 7:11 pm (-0.6 ft)
Next high tide : in 5h 35m at 12:51 pm (10.9 ft)
Sunset today : 6:31 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #8443970
Common Questions About Tides

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Boston, MA Tides - Feb 2039

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Mar 2039 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Tue	4:51	8.8	5:21	8.0	11:10	1.4	11:24	1.6	6:57	4:57		1	Tue
2	Wed	5:43	8.7	6:18	7.8			12:05	1.4	6:56	4:59		2	Wed
3	Thu	6:36	8.7	7:16	7.7	12:16	1.8	1:02	1.4	6:55	5:00		3	Thu
4	Fri	7:30	8.9	8:12	7.8	1:09	1.9	1:58	1.2	6:53	5:01		4	Fri
5	Sat	8:22	9.2	9:03	8.1	2:02	1.7	2:49	0.8	6:52	5:03		5	Sat
6	Sun	9:09	9.5	9:48	8.4	2:52	1.5	3:35	0.5	6:51	5:04		6	Sun
7	Mon	9:53	9.9	10:29	8.7	3:38	1.1	4:17	0.0	6:50	5:05		7	Mon
8	Tue	10:35	10.2	11:09	9.0	4:21	0.7	4:58	-0.3	6:49	5:06		8	Tue
9	Wed	11:16	10.5	11:49	9.4	5:04	0.4	5:38	-0.6	6:47	5:08		9	Wed
10	Thu	11:58	10.6			5:47	0.0	6:19	-0.8	6:46	5:09		10	Thu
11	Fri	12:30	9.7	12:41	10.7	6:31	-0.2	7:01	-0.9	6:45	5:10		11	Fri
12	Sat	1:11	10.0	1:26	10.6	7:17	-0.4	7:44	-0.8	6:44	5:12		12	Sat
13	Sun	1:54	10.2	2:14	10.3	8:05	-0.5	8:30	-0.6	6:42	5:13		13	Sun
14	Mon	2:41	10.3	3:05	9.9	8:57	-0.4	9:19	-0.3	6:41	5:14		14	Mon
15	Tue	3:31	10.3	4:02	9.4	9:53	-0.2	10:14	0.1	6:40	5:15		15	Tue
16	Wed	4:27	10.2	5:04	9.0	10:54	0.0	11:12	0.5	6:38	5:17		16	Wed
17	Thu	5:27	10.1	6:10	8.7	11:57	0.1			6:37	5:18		17	Thu
18	Fri	6:31	10.0	7:19	8.6	12:14	0.7	1:03	0.0	6:35	5:19		18	Fri
19	Sat	7:38	10.1	8:27	8.8	1:18	0.8	2:08	-0.1	6:34	5:21		19	Sat
20	Sun	8:41	10.3	9:26	9.1	2:21	0.6	3:09	-0.4	6:32	5:22		20	Sun
21	Mon	9:39	10.5	10:19	9.4	3:20	0.4	4:03	-0.6	6:31	5:23		21	Mon
22	Tue	10:31	10.7	11:07	9.6	4:13	0.1	4:51	-0.8	6:29	5:24		22	Tue
23	Wed	11:19	10.7	11:52	9.7	5:03	-0.1	5:36	-0.7	6:28	5:26		23	Wed
24	Thu			12:05	10.5	5:49	-0.2	6:19	-0.6	6:26	5:27		24	Thu
25	Fri	12:33	9.8	12:48	10.2	6:34	-0.1	6:59	-0.3	6:25	5:28		25	Fri
26	Sat	1:13	9.7	1:30	9.8	7:17	0.0	7:39	0.1	6:23	5:29		26	Sat
27	Sun	1:52	9.6	2:13	9.4	8:01	0.3	8:20	0.6	6:22	5:31		27	Sun
28	Mon	2:32	9.4	2:57	8.9	8:46	0.6	9:03	1.0	6:20	5:32		28	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 spring phase. Tonight's moon is 95% 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 near their weekly maximum.

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 Waning Gibbous (95% illuminated). This places Boston, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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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