Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 4h 39m at 11:25 pm (0.2 ft)
Next high tide (tomorrow) : 5:43 am (3.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Apr 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:372.912:592.96:400.07:010.16:227:06New Moon1Mon
2Tue1:182.91:412.97:240.07:410.16:217:07New Moon2Tue
3Wed1:552.92:212.88:05-0.18:180.16:197:08New Moon3Wed
4Thu2:322.93:002.88:440.08:560.26:177:09New Moon4Thu
5Fri3:082.93:382.79:230.09:340.26:167:10Waxing Crescent5Fri
6Sat3:462.94:182.610:030.110:130.36:147:11Waxing Crescent6Sat
7Sun4:252.84:592.610:440.110:540.46:127:12Waxing Crescent7Sun
8Mon5:062.85:432.511:280.211:390.56:117:13Waxing Crescent8Mon
9Tue5:512.76:312.412:150.36:097:14First Quarter9Tue
10Wed6:402.67:232.412:280.61:060.46:087:15First Quarter10Wed
11Thu7:342.68:162.41:200.61:590.46:067:16First Quarter11Thu
12Fri8:302.69:092.52:160.62:520.46:047:18First Quarter12Fri
13Sat9:262.710:022.63:120.53:450.36:037:19Waxing Gibbous13Sat
14Sun10:222.710:532.84:080.34:370.26:017:20Waxing Gibbous14Sun
15Mon11:162.911:413.05:020.15:280.16:007:21Waxing Gibbous15Mon
16Tue12:073.05:54-0.16:16-0.15:587:22Full Moon16Tue
17Wed12:273.212:563.16:44-0.37:03-0.25:567:23Full Moon17Wed
18Thu1:143.31:463.17:34-0.47:51-0.25:557:24Full Moon18Thu
19Fri2:023.52:373.18:24-0.58:40-0.25:537:25Full Moon19Fri
20Sat2:523.53:303.19:15-0.59:31-0.25:527:26Waning Gibbous20Sat
21Sun3:433.44:243.010:08-0.510:23-0.15:507:27Waning Gibbous21Sun
22Mon4:383.35:212.911:02-0.311:190.05:497:28Waning Gibbous22Mon
23Tue5:353.26:212.812:00-0.25:477:30Third Quarter23Tue
24Wed6:373.07:252.712:190.21:010.05:467:31Third Quarter24Wed
25Thu7:432.98:302.71:230.32:040.15:457:32Third Quarter25Thu
26Fri8:502.89:332.72:290.33:060.25:437:33Waning Crescent26Fri
27Sat9:562.710:322.83:340.34:060.25:427:34Waning Crescent27Sat
28Sun10:572.711:242.84:370.35:010.25:407:35Waning Crescent28Sun
29Mon11:512.75:320.25:490.35:397:36Waning Crescent29Mon
30Tue12:092.912:372.76:200.16:320.35:387:37New Moon30Tue
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 2:34 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 27% 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 Waxing Crescent (27% 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