Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 2h 06m at 8:58 am (0.1 ft)
Next high tide : 3:14 pm (2.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:232.83:323.39:210.110:00-0.27:145:34Waxing Crescent1Wed
2Thu4:132.84:233.210:110.110:52-0.27:155:33Waxing Crescent2Thu
3Fri5:072.75:193.111:060.211:48-0.17:165:31First Quarter3Fri
4Sat6:062.76:203.012:050.37:175:30First Quarter4Sat
5Sun6:082.76:252.912:470.012:090.36:184:29First Quarter5Sun
6Mon7:122.87:322.912:490.11:150.36:204:28First Quarter6Mon
7Tue8:142.88:382.81:490.12:200.26:214:27Waxing Gibbous7Tue
8Wed9:132.99:412.82:480.13:230.16:224:26Waxing Gibbous8Wed
9Thu10:083.010:392.83:450.14:220.06:234:25Waxing Gibbous9Thu
10Fri10:583.111:312.84:370.15:14-0.16:254:24Full Moon10Fri
11Sat11:433.15:260.16:02-0.16:264:23Full Moon11Sat
12Sun12:182.812:263.16:100.26:47-0.16:274:22Full Moon12Sun
13Mon1:032.81:083.16:540.27:31-0.16:284:21Full Moon13Mon
14Tue1:472.71:493.07:360.38:130.06:294:20Waning Gibbous14Tue
15Wed2:302.62:323.08:190.48:560.16:314:19Waning Gibbous15Wed
16Thu3:122.63:152.99:020.49:390.26:324:19Waning Gibbous16Thu
17Fri3:562.53:592.89:460.510:230.26:334:18Waning Gibbous17Fri
18Sat4:412.54:462.710:330.611:100.36:344:17Third Quarter18Sat
19Sun5:292.45:372.611:240.611:580.46:354:16Third Quarter19Sun
20Mon6:192.56:302.612:170.66:364:16Third Quarter20Mon
21Tue7:082.57:232.512:470.41:110.66:384:15Third Quarter21Tue
22Wed7:562.68:162.51:360.42:040.56:394:14Waning Crescent22Wed
23Thu8:442.79:092.52:240.42:570.46:404:14Waning Crescent23Thu
24Fri9:312.810:002.63:130.43:490.26:414:13Waning Crescent24Fri
25Sat10:163.010:492.74:010.34:380.16:424:13Waning Crescent25Sat
26Sun11:013.111:372.74:480.25:26-0.16:434:12New Moon26Sun
27Mon11:473.25:350.16:14-0.26:444:12New Moon27Mon
28Tue12:252.812:343.36:230.07:03-0.36:454:11New Moon28Tue
29Wed1:142.81:233.47:120.07:53-0.46:474:11Waxing Crescent29Wed
30Thu2:062.92:163.48:030.08:43-0.46:484:11Waxing Crescent30Thu
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 12:06 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 spring phase. Tonight's moon is 96% 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 Waning Gibbous (96% 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