Tides Today & Tomorrow in Plum Island Sound, South End, MA

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Plum Island Sound, South End, MA.

Next low tide : 8:01 pm (-0.2 ft)
Next high tide : in 1h 10m at 1:41 pm (9.8 ft)
Sunset today : 6:56 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8441241
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Plum Island Sound, South End, MA Tides - May 1876

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Mon	5:01	9.7	5:44	8.7	11:35	0.0	11:56	0.8	4:40	6:47		1	Mon
2	Tue	6:06	9.4	6:46	8.8			12:35	0.1	4:39	6:48		2	Tue
3	Wed	7:10	9.2	7:46	9.1	1:01	0.7	1:33	0.3	4:37	6:49		3	Wed
4	Thu	8:11	9.0	8:40	9.3	2:03	0.5	2:28	0.4	4:36	6:50		4	Thu
5	Fri	9:07	8.8	9:29	9.5	3:00	0.3	3:18	0.5	4:35	6:52		5	Fri
6	Sat	9:58	8.7	10:14	9.6	3:52	0.1	4:05	0.7	4:33	6:53		6	Sat
7	Sun	10:44	8.6	10:55	9.6	4:39	0.1	4:48	0.9	4:32	6:54		7	Sun
8	Mon	11:26	8.4	11:34	9.5	5:22	0.1	5:29	1.1	4:31	6:55		8	Mon
9	Tue			12:06	8.2	6:02	0.1	6:08	1.2	4:30	6:56		9	Tue
10	Wed	12:12	9.4	12:45	8.1	6:43	0.3	6:48	1.4	4:29	6:57		10	Wed
11	Thu	12:51	9.3	1:25	8.0	7:24	0.4	7:28	1.6	4:27	6:58		11	Thu
12	Fri	1:33	9.2	2:08	7.8	8:06	0.6	8:12	1.7	4:26	6:59		12	Fri
13	Sat	2:17	9.0	2:53	7.7	8:51	0.8	8:58	1.8	4:25	7:00		13	Sat
14	Sun	3:04	8.8	3:41	7.7	9:38	0.9	9:47	1.9	4:24	7:01		14	Sun
15	Mon	3:53	8.7	4:31	7.7	10:27	1.1	10:41	1.9	4:23	7:02		15	Mon
16	Tue	4:46	8.5	5:24	7.8	11:18	1.2	11:37	1.8	4:22	7:03		16	Tue
17	Wed	5:41	8.4	6:16	8.1			12:10	1.2	4:21	7:04		17	Wed
18	Thu	6:36	8.3	7:07	8.5	12:34	1.6	1:00	1.1	4:20	7:05		18	Thu
19	Fri	7:31	8.4	7:56	8.9	1:29	1.2	1:49	1.0	4:19	7:06		19	Fri
20	Sat	8:24	8.5	8:44	9.5	2:21	0.7	2:37	0.9	4:19	7:07		20	Sat
21	Sun	9:16	8.6	9:32	10.0	3:13	0.2	3:24	0.8	4:18	7:08		21	Sun
22	Mon	10:06	8.8	10:20	10.4	4:03	-0.3	4:11	0.6	4:17	7:09		22	Mon
23	Tue	10:57	8.9	11:09	10.8	4:53	-0.7	5:00	0.4	4:16	7:10		23	Tue
24	Wed	11:47	9.0	11:59	11.0	5:43	-1.0	5:49	0.3	4:15	7:11		24	Wed
25	Thu			12:38	9.1	6:34	-1.1	6:41	0.2	4:15	7:12		25	Thu
26	Fri	12:52	11.0	1:32	9.1	7:27	-1.1	7:36	0.2	4:14	7:13		26	Fri
27	Sat	1:47	10.9	2:27	9.1	8:21	-0.9	8:33	0.3	4:13	7:14		27	Sat
28	Sun	2:43	10.5	3:24	9.1	9:17	-0.7	9:33	0.4	4:13	7:15		28	Sun
29	Mon	3:42	10.1	4:23	9.1	10:13	-0.4	10:35	0.5	4:12	7:16		29	Mon
30	Tue	4:43	9.6	5:22	9.1	11:11	-0.1	11:39	0.6	4:12	7:16		30	Tue
31	Wed	5:45	9.2	6:22	9.2			12:08	0.2	4:11	7:17		31	Wed
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8441241)

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Is this week a spring tide or neap tide in Plum Island Sound, South End, MA?

Plum Island Sound, South End, MA is currently in a spring phase. Tonight's moon is 7% 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 Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide predictions for Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide data for Plum Island Sound, South End, MA is sourced from NOAA Station #8441241. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8441241.

What is the moon phase in Plum Island Sound, South End, MA tonight?

Tonight the moon over Plum Island Sound, South End, MA is Waxing Crescent (7% illuminated). This places Plum Island Sound, South End, 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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