Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 9:35 am (0.1 ft)
Next high tide (tomorrow) : in 5h 10m at 3:20 am (3.0 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:332.71:393.07:230.27:59-0.17:074:21Full Moon1Tue
2Wed2:152.72:212.98:060.28:390.07:074:22Waning Gibbous2Wed
3Thu2:552.73:022.98:490.29:190.07:074:23Waning Gibbous3Thu
4Fri3:352.63:442.89:320.39:590.17:074:24Waning Gibbous4Fri
5Sat4:162.64:282.610:160.310:410.27:074:25Waning Gibbous5Sat
6Sun4:582.65:142.511:030.411:250.37:074:26Third Quarter6Sun
7Mon5:432.66:042.411:540.47:074:27Third Quarter7Mon
8Tue6:312.66:562.312:120.412:460.47:074:28Third Quarter8Tue
9Wed7:202.67:512.31:010.41:400.47:064:29Third Quarter9Wed
10Thu8:122.68:472.31:520.52:350.47:064:30Waning Crescent10Thu
11Fri9:042.79:432.42:450.43:300.27:064:31Waning Crescent11Fri
12Sat9:562.810:362.53:380.44:230.17:054:32Waning Crescent12Sat
13Sun10:473.011:262.64:310.25:13-0.17:054:33Waning Crescent13Sun
14Mon11:363.15:210.16:01-0.27:054:34New Moon14Mon
15Tue12:132.712:243.36:100.06:48-0.47:044:35New Moon15Tue
16Wed1:012.91:133.37:00-0.27:35-0.57:044:36New Moon16Wed
17Thu1:493.02:033.37:50-0.38:23-0.57:034:38Waxing Crescent17Thu
18Fri2:373.12:543.38:41-0.39:11-0.57:034:39Waxing Crescent18Fri
19Sat3:273.13:473.29:34-0.310:01-0.47:024:40Waxing Crescent19Sat
20Sun4:183.14:413.010:29-0.210:53-0.27:014:41First Quarter20Sun
21Mon5:123.15:402.811:27-0.111:48-0.17:014:42First Quarter21Mon
22Tue6:093.06:432.712:280.07:004:44First Quarter22Tue
23Wed7:102.97:492.512:470.11:320.06:594:45First Quarter23Wed
24Thu8:132.98:562.51:470.22:370.16:594:46Waxing Gibbous24Thu
25Fri9:172.910:022.52:490.33:430.16:584:47Waxing Gibbous25Fri
26Sat10:182.911:002.53:500.34:420.06:574:49Waxing Gibbous26Sat
27Sun11:112.911:502.64:470.35:330.06:564:50Waxing Gibbous27Sun
28Mon11:582.95:370.26:170.06:554:51Full Moon28Mon
29Tue12:332.612:412.96:220.26:57-0.16:544:52Full Moon29Tue
30Wed1:132.61:212.97:040.17:350.06:534:54Full Moon30Wed
31Thu1:502.71:592.97:440.18:110.06:524:55Full Moon31Thu
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 6:27 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 96% 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 Waning Gibbous (96% 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