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 3h 27m 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 - Jun 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:423.51:203.17:05-0.47:20-0.25:088:09Full Moon1Fri
2Sat1:343.52:143.17:58-0.58:12-0.15:088:09Full Moon2Sat
3Sun2:263.53:083.18:49-0.49:03-0.15:078:10Waning Gibbous3Sun
4Mon3:183.44:003.09:40-0.49:550.05:078:11Waning Gibbous4Mon
5Tue4:103.34:522.910:31-0.210:470.25:078:11Waning Gibbous5Tue
6Wed5:023.15:452.811:22-0.111:400.35:068:12Waning Gibbous6Wed
7Thu5:553.06:382.712:140.15:068:13Third Quarter7Thu
8Fri6:502.87:322.712:350.41:070.25:068:13Third Quarter8Fri
9Sat7:462.78:242.71:320.52:000.35:068:14Third Quarter9Sat
10Sun8:422.69:162.72:290.52:510.45:068:14Third Quarter10Sun
11Mon9:382.510:062.73:240.53:410.45:058:15Waning Crescent11Mon
12Tue10:322.510:542.84:180.44:310.45:058:15Waning Crescent12Tue
13Wed11:232.611:382.85:090.35:180.45:058:16Waning Crescent13Wed
14Thu12:092.65:550.36:020.45:058:16Waning Crescent14Thu
15Fri12:192.912:522.66:380.26:440.45:058:17New Moon15Fri
16Sat12:593.01:342.77:190.17:250.35:058:17New Moon16Sat
17Sun1:393.02:152.78:000.08:070.35:068:17New Moon17Sun
18Mon2:193.02:572.78:410.08:490.35:068:18New Moon18Mon
19Tue3:003.13:392.79:23-0.19:330.35:068:18Waxing Crescent19Tue
20Wed3:433.14:222.810:06-0.110:190.25:068:18Waxing Crescent20Wed
21Thu4:283.15:072.810:51-0.111:070.25:068:18Waxing Crescent21Thu
22Fri5:163.05:552.911:39-0.15:068:19First Quarter22Fri
23Sat6:093.06:472.912:000.212:300.05:078:19First Quarter23Sat
24Sun7:052.97:423.012:560.21:240.05:078:19First Quarter24Sun
25Mon8:052.98:383.11:550.12:200.05:078:19First Quarter25Mon
26Tue9:062.99:353.12:550.13:170.05:088:19Waxing Gibbous26Tue
27Wed10:092.910:343.23:560.04:150.05:088:19Waxing Gibbous27Wed
28Thu11:112.911:313.34:57-0.15:130.05:098:19Waxing Gibbous28Thu
29Fri12:102.95:55-0.26:090.05:098:19Full Moon29Fri
30Sat12:253.41:062.96:50-0.37:020.05:108:19Full Moon30Sat
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