Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 5h 15m at 11:17 pm (0.2 ft)
Next high tide (tomorrow) : 5:25 am (2.8 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Apr 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:163.011:493.05:020.15:35-0.16:227:06Waxing Gibbous1Sun
2Mon12:113.25:57-0.26:26-0.36:207:07Full Moon2Mon
3Tue12:393.21:033.36:50-0.47:16-0.46:197:08Full Moon3Tue
4Wed1:283.31:553.47:42-0.58:05-0.56:177:09Full Moon4Wed
5Thu2:183.42:483.38:33-0.68:55-0.46:157:10Waning Gibbous5Thu
6Fri3:083.53:413.39:25-0.69:45-0.46:147:11Waning Gibbous6Fri
7Sat3:593.44:353.110:17-0.510:37-0.26:127:12Waning Gibbous7Sat
8Sun4:523.35:303.011:11-0.411:310.06:107:13Waning Gibbous8Sun
9Mon5:473.26:302.812:09-0.26:097:15Third Quarter9Mon
10Tue6:473.07:332.712:290.21:090.06:077:16Third Quarter10Tue
11Wed7:502.88:382.61:300.32:120.16:067:17Third Quarter11Wed
12Thu8:552.79:422.62:330.43:150.26:047:18Third Quarter12Thu
13Fri10:002.710:412.63:370.44:160.36:027:19Waning Crescent13Fri
14Sat11:002.711:332.74:380.45:110.36:017:20Waning Crescent14Sat
15Sun11:512.75:320.35:570.25:597:21Waning Crescent15Sun
16Mon12:162.712:342.86:180.26:370.25:587:22Waning Crescent16Mon
17Tue12:542.81:142.86:590.17:140.25:567:23New Moon17Tue
18Wed1:302.91:522.87:370.17:510.25:557:24New Moon18Wed
19Thu2:052.92:302.88:150.08:270.25:537:25New Moon19Thu
20Fri2:402.93:072.88:530.09:040.25:527:27New Moon20Fri
21Sat3:162.93:452.79:310.19:420.35:507:28Waxing Crescent21Sat
22Sun3:522.94:252.710:110.110:220.35:497:29Waxing Crescent22Sun
23Mon4:312.95:062.610:520.111:040.45:477:30Waxing Crescent23Mon
24Tue5:132.85:512.611:370.211:510.45:467:31Waxing Crescent24Tue
25Wed5:592.86:412.512:260.25:447:32First Quarter25Wed
26Thu6:522.87:352.612:430.41:200.25:437:33First Quarter26Thu
27Fri7:492.88:312.61:390.42:150.25:417:34First Quarter27Fri
28Sat8:482.89:282.82:380.33:120.15:407:35Waxing Gibbous28Sat
29Sun9:492.910:252.93:380.24:090.05:397:36Waxing Gibbous29Sun
30Mon10:503.011:203.14:370.05:05-0.15:377:38Waxing Gibbous30Mon
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 2:21 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 75% 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 Gibbous (75% 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