Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 2h 00m at 6:21 am (-0.2 ft)
Next high tide : 12:33 pm (2.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jun 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:162.56:020.36:040.55:088:09Waning Crescent1Mon
2Tue12:212.912:582.56:440.26:450.55:078:09New Moon2Tue
3Wed1:002.91:392.57:240.27:250.55:078:10New Moon3Wed
4Thu1:392.92:192.68:030.18:050.55:078:11New Moon4Thu
5Fri2:182.92:592.68:420.18:450.55:068:11New Moon5Fri
6Sat2:572.93:392.69:220.19:260.55:068:12Waxing Crescent6Sat
7Sun3:382.94:192.610:020.110:080.45:068:13Waxing Crescent7Sun
8Mon4:192.94:592.610:430.110:530.45:068:13Waxing Crescent8Mon
9Tue5:032.95:422.711:260.111:410.45:068:14Waxing Crescent9Tue
10Wed5:502.96:282.712:120.15:058:14First Quarter10Wed
11Thu6:412.87:172.812:330.41:010.15:058:15First Quarter11Thu
12Fri7:362.88:092.91:290.31:520.25:058:15First Quarter12Fri
13Sat8:342.89:023.12:260.22:460.25:058:16Waxing Gibbous13Sat
14Sun9:342.89:583.23:250.13:410.15:058:16Waxing Gibbous14Sun
15Mon10:362.810:553.34:250.04:390.15:058:17Waxing Gibbous15Mon
16Tue11:372.811:513.45:25-0.25:360.15:058:17Waxing Gibbous16Tue
17Wed12:352.96:22-0.36:320.05:058:17Full Moon17Wed
18Thu12:463.41:312.97:17-0.37:270.05:068:18Full Moon18Thu
19Fri1:413.42:272.98:10-0.48:210.05:068:18Full Moon19Fri
20Sat2:373.43:222.99:03-0.39:150.15:068:18Waning Gibbous20Sat
21Sun3:313.34:152.99:54-0.210:080.15:068:18Waning Gibbous21Sun
22Mon4:253.25:072.910:45-0.111:020.25:068:19Waning Gibbous22Mon
23Tue5:183.05:582.811:350.011:560.35:078:19Third Quarter23Tue
24Wed6:122.96:492.812:250.25:078:19Third Quarter24Wed
25Thu7:082.77:402.812:530.41:160.35:078:19Third Quarter25Thu
26Fri8:032.68:312.71:500.42:070.45:088:19Third Quarter26Fri
27Sat8:592.59:212.72:460.42:570.55:088:19Waning Crescent27Sat
28Sun9:562.410:122.73:420.43:480.65:098:19Waning Crescent28Sun
29Mon10:512.411:012.84:370.44:380.65:098:19Waning Crescent29Mon
30Tue11:422.411:472.85:280.45:270.65:108:19Waning Crescent30Tue
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 9:27 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 1% 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 New Moon (1% 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