Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in South Yarmouth, MA.

Next low tide : in 20m at 12:02 pm (-0.1 ft)
Next high tide : 6:26 pm (2.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - May 2021

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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	Sat	4:43	3.3	5:29	2.9	11:09	-0.3	11:25	0.1	5:36	7:38		1	Sat
2	Sun	5:40	3.2	6:30	2.7			12:08	-0.1	5:35	7:40		2	Sun
3	Mon	6:43	3.0	7:36	2.6	12:25	0.3	1:10	0.0	5:34	7:41		3	Mon
4	Tue	7:49	2.8	8:41	2.6	1:29	0.4	2:14	0.2	5:32	7:42		4	Tue
5	Wed	8:57	2.8	9:45	2.6	2:35	0.5	3:16	0.2	5:31	7:43		5	Wed
6	Thu	10:02	2.7	10:42	2.7	3:41	0.4	4:16	0.3	5:30	7:44		6	Thu
7	Fri	11:02	2.7	11:32	2.8	4:43	0.4	5:10	0.3	5:29	7:45		7	Fri
8	Sat	11:54	2.7			5:37	0.3	5:55	0.3	5:27	7:46		8	Sat
9	Sun	12:14	2.8	12:38	2.7	6:23	0.2	6:36	0.3	5:26	7:47		9	Sun
10	Mon	12:52	2.9	1:19	2.7	7:04	0.1	7:13	0.3	5:25	7:48		10	Mon
11	Tue	1:27	2.9	1:57	2.7	7:43	0.1	7:50	0.3	5:24	7:49		11	Tue
12	Wed	2:02	2.9	2:36	2.7	8:20	0.1	8:27	0.4	5:23	7:50		12	Wed
13	Thu	2:38	2.9	3:14	2.6	8:58	0.1	9:05	0.4	5:22	7:51		13	Thu
14	Fri	3:15	2.9	3:53	2.6	9:37	0.1	9:43	0.5	5:21	7:52		14	Fri
15	Sat	3:54	2.9	4:34	2.5	10:17	0.2	10:24	0.5	5:20	7:53		15	Sat
16	Sun	4:34	2.8	5:16	2.5	10:59	0.2	11:07	0.6	5:19	7:54		16	Sun
17	Mon	5:17	2.8	6:02	2.5	11:44	0.3	11:55	0.6	5:18	7:55		17	Mon
18	Tue	6:05	2.7	6:51	2.5			12:33	0.3	5:17	7:56		18	Tue
19	Wed	6:57	2.7	7:43	2.5	12:47	0.6	1:25	0.3	5:16	7:57		19	Wed
20	Thu	7:53	2.7	8:35	2.6	1:43	0.5	2:18	0.2	5:16	7:58		20	Thu
21	Fri	8:50	2.8	9:28	2.8	2:40	0.4	3:11	0.2	5:15	7:59		21	Fri
22	Sat	9:49	2.8	10:21	3.0	3:38	0.3	4:05	0.1	5:14	8:00		22	Sat
23	Sun	10:47	2.9	11:13	3.2	4:36	0.1	4:58	0.0	5:13	8:01		23	Sun
24	Mon	11:44	3.0			5:32	-0.1	5:50	-0.1	5:12	8:02		24	Mon
25	Tue	12:03	3.3	12:38	3.1	6:26	-0.3	6:42	-0.1	5:12	8:03		25	Tue
26	Wed	12:53	3.5	1:32	3.1	7:19	-0.4	7:33	-0.1	5:11	8:04		26	Wed
27	Thu	1:44	3.5	2:26	3.1	8:11	-0.5	8:24	-0.1	5:11	8:04		27	Thu
28	Fri	2:37	3.5	3:22	3.0	9:04	-0.5	9:17	0.0	5:10	8:05		28	Fri
29	Sat	3:31	3.4	4:17	2.9	9:58	-0.4	10:11	0.1	5:09	8:06		29	Sat
30	Sun	4:26	3.3	5:14	2.9	10:52	-0.3	11:07	0.2	5:09	8:07		30	Sun
31	Mon	5:24	3.2	6:13	2.8	11:49	-0.1			5:08	8:08		31	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: (8447504)

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What time does the tide turn (slack tide) in South Yarmouth, MA today?

Slack tide in South Yarmouth, MA is approximately 3:14 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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

South Yarmouth, MA is currently in a transitional phase. Tonight's moon is 37% 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 South Yarmouth, 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 South Yarmouth, MA?

Tide predictions for South Yarmouth, 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 South Yarmouth, MA?

Tide data for South Yarmouth, MA is sourced from NOAA Station #8447504. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447504.

What is the moon phase in South Yarmouth, MA tonight?

Tonight the moon over South Yarmouth, MA is First Quarter (37% illuminated). This places South Yarmouth, 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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