Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 3:11 pm (0.3 ft)
Next high tide : in 4h 17m at 9:11 am (2.5 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:322.56:412.812:110.212:240.56:386:21First Quarter1Wed
2Thu7:322.47:412.71:100.31:210.66:396:20First Quarter2Thu
3Fri8:332.48:422.62:100.42:210.76:406:18First Quarter3Fri
4Sat9:332.49:422.63:100.53:210.76:416:16Waxing Gibbous4Sat
5Sun10:282.410:382.74:070.44:180.66:426:15Waxing Gibbous5Sun
6Mon11:162.511:272.74:580.45:100.56:436:13Waxing Gibbous6Mon
7Tue11:582.65:410.35:550.46:446:11Waxing Gibbous7Tue
8Wed12:102.812:352.76:190.36:360.36:456:10Full Moon8Wed
9Thu12:502.81:092.86:550.27:150.26:476:08Full Moon9Thu
10Fri1:282.81:432.97:310.27:540.16:486:06Full Moon10Fri
11Sat2:062.82:183.08:070.28:330.06:496:05Full Moon11Sat
12Sun2:442.82:533.08:440.29:130.06:506:03Waning Gibbous12Sun
13Mon3:242.73:323.09:230.39:550.06:516:02Waning Gibbous13Mon
14Tue4:072.74:133.010:040.310:410.16:526:00Waning Gibbous14Tue
15Wed4:522.65:003.010:490.411:310.16:535:58Waning Gibbous15Wed
16Thu5:442.55:532.911:410.46:545:57Third Quarter16Thu
17Fri6:422.56:532.912:270.212:400.56:555:55Third Quarter17Fri
18Sat7:452.57:592.91:290.21:440.56:575:54Third Quarter18Sat
19Sun8:502.69:062.92:310.22:500.46:585:52Waning Crescent19Sun
20Mon9:532.710:123.03:320.13:550.36:595:51Waning Crescent20Mon
21Tue10:522.911:143.04:320.04:570.17:005:49Waning Crescent21Tue
22Wed11:453.15:270.05:54-0.17:015:48Waning Crescent22Wed
23Thu12:103.112:343.26:18-0.16:47-0.27:025:46New Moon23Thu
24Fri1:033.11:213.37:06-0.17:37-0.37:045:45New Moon24Fri
25Sat1:533.12:063.37:53-0.18:26-0.37:055:44New Moon25Sat
26Sun2:433.02:523.38:390.09:14-0.27:065:42Waxing Crescent26Sun
27Mon3:312.93:383.29:250.210:01-0.17:075:41Waxing Crescent27Mon
28Tue4:202.74:253.010:110.310:500.07:085:40Waxing Crescent28Tue
29Wed5:092.65:132.910:590.511:410.27:105:38Waxing Crescent29Wed
30Thu6:012.56:062.811:510.67:115:37First Quarter30Thu
31Fri6:572.47:032.612:350.312:470.77:125:36First Quarter31Fri
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 12:11 pm — 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 22% 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 Crescent (22% 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