Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 6h 15m at 3:00 am (0.1 ft)
Next high tide (tomorrow) : 9:11 am (2.5 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Mar 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:582.85:410.36:150.16:135:31New Moon1Sat
2Sun12:292.612:372.86:210.26:500.16:125:32New Moon2Sun
3Mon1:042.61:142.96:590.27:240.06:105:33New Moon3Mon
4Tue1:382.71:512.97:380.17:590.06:095:35New Moon4Tue
5Wed2:112.82:282.88:160.08:350.06:075:36Waxing Crescent5Wed
6Thu2:462.83:062.88:560.09:120.16:055:37Waxing Crescent6Thu
7Fri3:222.93:472.79:370.09:520.16:045:38Waxing Crescent7Fri
8Sat4:022.94:322.610:230.010:360.26:025:39Waxing Crescent8Sat
9Sun5:472.96:242.512:140.17:006:40First Quarter9Sun
10Mon6:392.87:232.412:270.31:120.16:596:42First Quarter10Mon
11Tue7:392.88:282.41:250.42:150.26:576:43First Quarter11Tue
12Wed8:452.89:362.42:280.43:210.16:556:44Waxing Gibbous12Wed
13Thu9:542.910:442.53:350.34:260.06:546:45Waxing Gibbous13Thu
14Fri11:013.011:452.74:410.25:28-0.16:526:46Waxing Gibbous14Fri
15Sat12:023.15:430.06:23-0.26:506:47Waxing Gibbous15Sat
16Sun12:392.912:583.26:40-0.17:13-0.36:496:48Full Moon16Sun
17Mon1:293.01:503.27:32-0.38:01-0.36:476:50Full Moon17Mon
18Tue2:163.12:403.28:22-0.38:47-0.36:456:51Full Moon18Tue
19Wed3:013.23:283.19:11-0.39:31-0.26:446:52Waning Gibbous19Wed
20Thu3:463.24:162.99:59-0.310:160.06:426:53Waning Gibbous20Thu
21Fri4:303.15:032.810:46-0.111:010.26:406:54Waning Gibbous21Fri
22Sat5:152.95:532.611:360.011:490.46:396:55Waning Gibbous22Sat
23Sun6:032.86:472.412:280.26:376:56Third Quarter23Sun
24Mon6:572.67:452.312:410.51:250.36:356:57Third Quarter24Mon
25Tue7:552.58:452.21:370.62:250.46:336:58Third Quarter25Tue
26Wed8:562.59:472.22:360.73:250.56:327:00Third Quarter26Wed
27Thu9:582.510:442.33:350.74:240.46:307:01Waning Crescent27Thu
28Fri10:542.611:332.44:330.65:140.46:287:02Waning Crescent28Fri
29Sat11:432.75:250.55:580.36:277:03Waning Crescent29Sat
30Sun12:142.512:262.76:100.36:360.26:257:04Waning Crescent30Sun
31Mon12:512.71:062.86:510.27:120.16:237:05New Moon31Mon
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 6:05 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 32% 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 Third Quarter (32% 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