Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 13m at 10:31 pm (0.2 ft)
Next high tide (tomorrow) : 4:41 am (2.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:402.69:023.02:320.22:460.35:367:58Waning Crescent1Mon
2Tue9:392.69:593.13:300.23:440.25:377:56Waning Crescent2Tue
3Wed10:392.710:583.24:280.04:420.15:387:55Waning Crescent3Wed
4Thu11:382.811:553.35:26-0.15:400.05:397:54Waning Crescent4Thu
5Fri12:333.06:21-0.36:36-0.15:407:53New Moon5Fri
6Sat12:503.41:273.17:14-0.47:31-0.25:417:52New Moon6Sat
7Sun1:453.52:213.28:06-0.58:25-0.35:427:50New Moon7Sun
8Mon2:403.53:143.38:57-0.59:19-0.35:437:49Waxing Crescent8Mon
9Tue3:353.44:063.39:48-0.410:12-0.35:447:48Waxing Crescent9Tue
10Wed4:293.34:583.310:39-0.311:07-0.25:457:46Waxing Crescent10Wed
11Thu5:243.15:523.211:31-0.15:467:45First Quarter11Thu
12Fri6:212.96:473.112:03-0.112:250.05:477:44First Quarter12Fri
13Sat7:212.87:453.01:020.11:220.25:487:42First Quarter13Sat
14Sun8:222.68:432.92:030.22:190.35:497:41First Quarter14Sun
15Mon9:232.59:422.83:030.33:160.45:507:39Waxing Gibbous15Mon
16Tue10:242.510:392.84:040.34:130.55:517:38Waxing Gibbous16Tue
17Wed11:192.511:302.85:010.35:080.45:527:36Waxing Gibbous17Wed
18Thu12:072.65:510.25:560.45:537:35Waxing Gibbous18Thu
19Fri12:162.912:492.66:330.26:400.35:547:33Full Moon19Fri
20Sat12:572.91:272.77:120.27:210.35:557:32Full Moon20Sat
21Sun1:362.92:042.87:490.18:000.25:567:30Full Moon21Sun
22Mon2:152.92:402.88:250.18:400.25:577:29Full Moon22Mon
23Tue2:532.93:162.89:020.19:190.25:587:27Waning Gibbous23Tue
24Wed3:312.93:532.89:390.19:590.25:597:26Waning Gibbous24Wed
25Thu4:102.84:302.910:170.210:410.26:007:24Waning Gibbous25Thu
26Fri4:502.85:102.910:580.211:250.26:017:23Waning Gibbous26Fri
27Sat5:342.75:532.911:410.26:027:21Third Quarter27Sat
28Sun6:232.76:422.912:140.212:300.36:037:19Third Quarter28Sun
29Mon7:172.67:372.91:080.21:240.36:047:18Third Quarter29Mon
30Tue8:152.68:353.02:050.22:210.36:057:16Third Quarter30Tue
31Wed9:162.79:363.13:040.13:210.26:067:14Waning Crescent31Wed
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 1:36 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 Waning 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