Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 1h 39m at 4:26 am (0.3 ft)
Next high tide : 10:42 am (2.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:433.04:553.310:400.011:20-0.37:135:35Waxing Crescent1Mon
2Tue5:412.95:543.111:370.27:145:34First Quarter2Tue
3Wed6:442.76:573.012:20-0.112:380.37:155:33First Quarter3Wed
4Thu7:492.78:032.81:220.11:420.47:165:31First Quarter4Thu
5Fri8:532.69:082.82:250.22:470.47:175:30First Quarter5Fri
6Sat9:542.710:112.73:260.23:500.47:195:29Waxing Gibbous6Sat
7Sun9:492.710:072.73:230.33:490.36:204:28Waxing Gibbous7Sun
8Mon10:362.810:562.74:140.34:400.36:214:27Waxing Gibbous8Mon
9Tue11:162.811:382.74:570.35:240.26:224:26Waxing Gibbous9Tue
10Wed11:532.95:360.36:040.16:244:25Full Moon10Wed
11Thu12:182.712:282.96:130.36:420.16:254:24Full Moon11Thu
12Fri12:562.71:032.96:500.37:200.16:264:23Full Moon12Fri
13Sat1:342.71:392.97:270.37:580.16:274:22Full Moon13Sat
14Sun2:132.62:162.98:050.48:370.16:284:21Waning Gibbous14Sun
15Mon2:522.62:542.98:450.49:180.26:304:20Waning Gibbous15Mon
16Tue3:332.53:352.89:260.510:010.26:314:19Waning Gibbous16Tue
17Wed4:172.54:192.810:100.510:470.26:324:18Waning Gibbous17Wed
18Thu5:042.55:092.710:590.611:380.26:334:18Third Quarter18Thu
19Fri5:552.56:032.711:540.56:344:17Third Quarter19Fri
20Sat6:492.57:012.712:310.212:510.56:364:16Third Quarter20Sat
21Sun7:432.78:002.81:260.21:500.36:374:16Waning Crescent21Sun
22Mon8:382.89:002.92:200.12:490.26:384:15Waning Crescent22Mon
23Tue9:323.09:593.03:150.03:470.06:394:14Waning Crescent23Tue
24Wed10:243.210:553.04:09-0.14:43-0.26:404:14Waning Crescent24Wed
25Thu11:153.411:493.15:02-0.25:37-0.46:414:13New Moon25Thu
26Fri12:053.55:52-0.26:29-0.56:424:13New Moon26Fri
27Sat12:423.112:563.56:43-0.27:21-0.66:444:12New Moon27Sat
28Sun1:363.11:483.57:35-0.28:14-0.56:454:12Waxing Crescent28Sun
29Mon2:313.02:413.48:27-0.19:06-0.46:464:11Waxing Crescent29Mon
30Tue3:262.93:363.39:200.010:00-0.36:474:11Waxing Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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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 7:34 am — 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 spring phase. Tonight's moon is 84% 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 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 Waxing Gibbous (84% illuminated). This places South Yarmouth, 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