Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 3h 31m at 5:36 pm (0.6 ft)
Next high tide : 11:57 pm (2.8 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:313.15:032.910:44-0.111:050.15:357:58Waxing Crescent1Tue
2Wed5:222.95:512.911:310.111:580.25:367:57First Quarter2Wed
3Thu6:142.86:402.812:200.25:377:56First Quarter3Thu
4Fri7:082.67:312.812:530.31:100.45:387:55First Quarter4Fri
5Sat8:042.58:222.71:490.42:010.55:397:53First Quarter5Sat
6Sun9:022.49:162.72:460.42:540.65:407:52Waxing Gibbous6Sun
7Mon10:002.310:102.73:430.53:480.75:417:51Waxing Gibbous7Mon
8Tue10:572.311:042.74:400.44:420.75:427:50Waxing Gibbous8Tue
9Wed11:492.411:522.85:330.45:320.65:437:48Waxing Gibbous9Wed
10Thu12:342.46:190.36:190.55:447:47Waxing Gibbous10Thu
11Fri12:362.91:152.57:000.27:020.45:457:46Full Moon11Fri
12Sat1:182.91:542.67:380.17:430.45:467:44Full Moon12Sat
13Sun1:583.02:322.78:160.18:240.35:477:43Full Moon13Sun
14Mon2:383.03:092.88:540.09:060.25:487:42Waning Gibbous14Mon
15Tue3:183.03:462.89:320.09:480.25:497:40Waning Gibbous15Tue
16Wed3:593.04:242.910:110.010:320.15:507:39Waning Gibbous16Wed
17Thu4:422.95:053.010:520.111:190.15:517:37Waning Gibbous17Thu
18Fri5:282.85:503.011:370.15:527:36Third Quarter18Fri
19Sat6:202.76:413.012:110.112:260.25:537:34Third Quarter19Sat
20Sun7:162.67:363.01:070.11:210.35:547:33Third Quarter20Sun
21Mon8:182.68:363.02:070.12:200.35:567:31Third Quarter21Mon
22Tue9:232.59:403.03:100.13:220.35:577:30Waning Crescent22Tue
23Wed10:302.610:463.14:150.14:260.35:587:28Waning Crescent23Wed
24Thu11:342.711:483.25:180.05:290.25:597:27Waning Crescent24Thu
25Fri12:322.86:16-0.16:270.16:007:25New Moon25Fri
26Sat12:453.21:242.97:08-0.27:210.06:017:23New Moon26Sat
27Sun1:393.22:143.07:58-0.28:120.06:027:22New Moon27Sun
28Mon2:303.23:013.08:44-0.29:020.06:037:20Waxing Crescent28Mon
29Tue3:193.13:453.09:29-0.19:500.06:047:19Waxing Crescent29Tue
30Wed4:063.04:283.010:120.110:370.16:057:17Waxing Crescent30Wed
31Thu4:532.85:112.910:560.211:250.26:067:15Waxing Crescent31Thu
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 8:46 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 92% 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 (92% 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