Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 44m at 3:00 am (0.1 ft)
Next high tide : 9:11 am (2.5 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:343.35:073.110:47-0.211:12-0.15:367:58Waxing Crescent1Fri
2Sat5:293.16:003.111:39-0.15:377:57First Quarter2Sat
3Sun6:272.96:543.012:100.012:320.15:387:55First Quarter3Sun
4Mon7:272.77:503.01:100.11:280.25:397:54First Quarter4Mon
5Tue8:292.68:472.92:110.22:240.45:407:53First Quarter5Tue
6Wed9:322.59:462.83:130.33:210.55:417:52Waxing Gibbous6Wed
7Thu10:352.410:442.84:160.34:200.65:427:50Waxing Gibbous7Thu
8Fri11:332.411:382.85:150.35:150.65:437:49Waxing Gibbous8Fri
9Sat12:222.56:070.36:050.55:447:48Waxing Gibbous9Sat
10Sun12:252.91:052.56:510.26:500.55:457:47Full Moon10Sun
11Mon1:082.91:452.67:300.27:310.45:467:45Full Moon11Mon
12Tue1:472.92:222.68:060.28:110.45:477:44Full Moon12Tue
13Wed2:262.92:582.78:420.18:500.35:487:42Full Moon13Wed
14Thu3:042.93:322.79:170.19:290.35:497:41Waning Gibbous14Thu
15Fri3:412.94:072.79:520.210:090.35:507:40Waning Gibbous15Fri
16Sat4:192.84:422.810:290.210:490.35:517:38Waning Gibbous16Sat
17Sun4:592.75:192.811:060.311:320.35:527:37Waning Gibbous17Sun
18Mon5:412.66:002.811:470.35:537:35Third Quarter18Mon
19Tue6:292.56:462.812:200.312:330.45:547:34Third Quarter19Tue
20Wed7:212.57:382.81:120.31:240.55:557:32Third Quarter20Wed
21Thu8:192.48:352.92:090.32:190.55:567:31Third Quarter21Thu
22Fri9:202.49:363.03:090.23:190.45:577:29Waning Crescent22Fri
23Sat10:242.510:393.14:120.24:220.45:587:28Waning Crescent23Sat
24Sun11:262.611:403.25:130.05:230.25:597:26Waning Crescent24Sun
25Mon12:232.86:10-0.16:220.06:007:24New Moon25Mon
26Tue12:383.31:163.07:03-0.37:17-0.16:017:23New Moon26Tue
27Wed1:333.42:083.17:54-0.38:11-0.26:027:21New Moon27Wed
28Thu2:273.42:593.28:43-0.39:04-0.36:037:20Waxing Crescent28Thu
29Fri3:213.33:483.29:32-0.39:57-0.36:047:18Waxing Crescent29Fri
30Sat4:143.24:373.210:20-0.210:49-0.26:057:16Waxing Crescent30Sat
31Sun5:073.05:273.111:100.011:440.06:067:15Waxing Crescent31Sun
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 6:05 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 transitional phase. Tonight's moon is 22% 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 Waning Crescent (22% 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