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 6h 10m 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 - Mar 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:532.79:342.52:370.43:200.26:145:31Waxing Gibbous1Thu
2Fri9:502.910:282.63:340.34:140.06:125:32Waxing Gibbous2Fri
3Sat10:443.011:182.84:290.15:06-0.26:115:33Waxing Gibbous3Sat
4Sun11:353.25:21-0.15:54-0.36:095:34Full Moon4Sun
5Mon12:063.012:253.36:11-0.36:42-0.56:085:35Full Moon5Mon
6Tue12:543.21:153.47:02-0.47:30-0.56:065:37Full Moon6Tue
7Wed1:433.32:063.47:52-0.58:18-0.56:045:38Waning Gibbous7Wed
8Thu2:323.32:583.38:44-0.59:08-0.56:035:39Waning Gibbous8Thu
9Fri3:223.33:513.29:36-0.59:59-0.36:015:40Waning Gibbous9Fri
10Sat4:143.24:473.010:31-0.310:53-0.15:595:41Third Quarter10Sat
11Sun6:093.16:472.812:29-0.26:586:42Third Quarter11Sun
12Mon7:103.07:522.712:500.01:310.06:566:44Third Quarter12Mon
13Tue8:142.98:592.61:520.22:360.16:546:45Third Quarter13Tue
14Wed9:202.810:072.52:550.33:420.16:536:46Waning Crescent14Wed
15Thu10:262.811:102.63:590.34:460.16:516:47Waning Crescent15Thu
16Fri11:262.85:010.35:420.16:496:48Waning Crescent16Fri
17Sat12:022.612:162.85:550.26:290.16:486:49Waning Crescent17Sat
18Sun12:462.71:002.96:420.27:090.16:466:50New Moon18Sun
19Mon1:252.81:402.97:230.17:460.06:446:51New Moon19Mon
20Tue2:012.82:182.98:020.18:220.16:426:53New Moon20Tue
21Wed2:362.82:552.88:400.08:580.16:416:54New Moon21Wed
22Thu3:112.83:322.89:180.09:350.16:396:55Waxing Crescent22Thu
23Fri3:472.84:102.79:570.110:120.26:376:56Waxing Crescent23Fri
24Sat4:232.84:492.610:370.110:510.36:366:57Waxing Crescent24Sat
25Sun5:022.85:322.611:190.211:330.46:346:58Waxing Crescent25Sun
26Mon5:442.76:182.512:050.26:326:59First Quarter26Mon
27Tue6:312.77:092.412:200.412:560.36:317:00First Quarter27Tue
28Wed7:232.78:042.41:110.51:500.36:297:01First Quarter28Wed
29Thu8:192.79:012.52:070.52:460.26:277:02First Quarter29Thu
30Fri9:182.89:592.63:040.43:440.26:257:04Waxing Gibbous30Fri
31Sat10:182.910:562.84:040.34:410.06:247:05Waxing Gibbous31Sat
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