Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently falling in Chelsea, MA.

Next low tide : in 3h 37m at 5:48 pm (0.2 ft)
Next high tide : 11:58 pm (10.1 ft)
Sunset today : 6:34 pm
Sunrise tomorrow : 6:35 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

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Chelsea, MA Tides - Aug 1865

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Sep 1865 >

Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Tue	5:58	8.3	6:21	9.3			12:02	1.8	4:40	7:07		1	Tue
2	Wed	6:55	8.3	7:15	9.5	12:41	1.4	12:55	1.8	4:41	7:06		2	Wed
3	Thu	7:49	8.4	8:05	9.8	1:34	1.1	1:47	1.6	4:42	7:05		3	Thu
4	Fri	8:39	8.7	8:53	10.2	2:26	0.8	2:38	1.3	4:43	7:04		4	Fri
5	Sat	9:27	9.1	9:41	10.6	3:15	0.3	3:27	0.9	4:44	7:03		5	Sat
6	Sun	10:14	9.6	10:28	11.0	4:02	-0.1	4:15	0.4	4:45	7:01		6	Sun
7	Mon	10:59	10.2	11:14	11.3	4:48	-0.6	5:03	-0.1	4:46	7:00		7	Mon
8	Tue	11:44	10.7			5:34	-1.0	5:51	-0.5	4:47	6:59		8	Tue
9	Wed	12:02	11.5	12:31	11.1	6:19	-1.2	6:40	-0.8	4:48	6:57		9	Wed
10	Thu	12:51	11.5	1:20	11.4	7:07	-1.2	7:32	-0.9	4:49	6:56		10	Thu
11	Fri	1:43	11.3	2:11	11.5	7:57	-1.0	8:27	-0.9	4:50	6:55		11	Fri
12	Sat	2:38	11.0	3:06	11.4	8:50	-0.7	9:24	-0.7	4:51	6:53		12	Sat
13	Sun	3:36	10.5	4:03	11.2	9:46	-0.4	10:23	-0.5	4:52	6:52		13	Sun
14	Mon	4:37	10.0	5:05	11.0	10:43	0.1	11:25	-0.2	4:54	6:50		14	Mon
15	Tue	5:44	9.7	6:11	10.8	11:44	0.4			4:55	6:49		15	Tue
16	Wed	6:52	9.5	7:16	10.7	12:29	0.0	12:46	0.7	4:56	6:47		16	Wed
17	Thu	7:56	9.5	8:16	10.7	1:31	0.1	1:47	0.8	4:57	6:46		17	Thu
18	Fri	8:54	9.5	9:11	10.7	2:30	0.1	2:44	0.8	4:58	6:44		18	Fri
19	Sat	9:47	9.6	10:01	10.6	3:24	0.1	3:37	0.7	4:59	6:43		19	Sat
20	Sun	10:33	9.7	10:46	10.4	4:12	0.1	4:24	0.7	5:00	6:41		20	Sun
21	Mon	11:14	9.7	11:26	10.3	4:54	0.2	5:06	0.7	5:01	6:40		21	Mon
22	Tue	11:50	9.7			5:32	0.3	5:46	0.7	5:02	6:38		22	Tue
23	Wed	12:03	10.1	12:25	9.7	6:09	0.4	6:26	0.7	5:03	6:37		23	Wed
24	Thu	12:40	9.9	1:01	9.7	6:47	0.6	7:06	0.8	5:04	6:35		24	Thu
25	Fri	1:18	9.6	1:38	9.6	7:26	0.8	7:49	0.9	5:05	6:34		25	Fri
26	Sat	1:58	9.3	2:18	9.5	8:08	1.0	8:34	1.0	5:06	6:32		26	Sat
27	Sun	2:41	9.1	3:02	9.4	8:53	1.3	9:23	1.2	5:07	6:30		27	Sun
28	Mon	3:28	8.7	3:49	9.3	9:40	1.5	10:13	1.3	5:08	6:29		28	Mon
29	Tue	4:19	8.5	4:41	9.2	10:31	1.8	11:07	1.4	5:10	6:27		29	Tue
30	Wed	5:16	8.3	5:38	9.2	11:25	1.9			5:11	6:25		30	Wed
31	Thu	6:15	8.3	6:36	9.4	12:03	1.3	12:20	1.8	5:12	6:24		31	Thu
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8443725)

www.USHarbors.com

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

Chelsea, MA is currently in a spring phase. Tonight's moon is 100% 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 Chelsea, 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 Chelsea, MA?

Tide predictions for Chelsea, 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 Chelsea, MA?

Tide data for Chelsea, MA is sourced from NOAA Station #8443725. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443725.

What is the moon phase in Chelsea, MA tonight?

Tonight the moon over Chelsea, MA is Full Moon (100% illuminated). This places Chelsea, 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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