Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 12m at 5:32 pm (0.2 ft)
Next high tide : 11:48 pm (3.3 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:302.46:372.712:140.312:260.67:135:34Third Quarter1Sat
2Sun6:252.56:362.81:080.312:250.56:154:33Third Quarter2Sun
3Mon7:212.67:362.81:030.21:250.46:164:32Third Quarter3Mon
4Tue8:162.78:372.81:580.22:250.36:174:31Waning Crescent4Tue
5Wed9:102.99:372.92:530.13:240.16:184:29Waning Crescent5Wed
6Thu10:033.210:343.03:480.04:21-0.26:194:28Waning Crescent6Thu
7Fri10:543.311:283.14:40-0.15:16-0.36:214:27New Moon7Fri
8Sat11:443.55:31-0.16:08-0.56:224:26New Moon8Sat
9Sun12:213.112:343.56:21-0.27:00-0.56:234:25New Moon9Sun
10Mon1:143.01:253.57:12-0.17:52-0.56:244:24Waxing Crescent10Mon
11Tue2:083.02:183.48:040.08:45-0.46:264:23Waxing Crescent11Tue
12Wed3:032.93:123.38:560.19:38-0.26:274:22Waxing Crescent12Wed
13Thu3:582.84:073.19:500.210:330.06:284:21Waxing Crescent13Thu
14Fri4:552.75:052.910:470.411:300.16:294:20First Quarter14Fri
15Sat5:552.66:062.811:480.56:304:19First Quarter15Sat
16Sun6:542.67:082.612:280.312:500.56:324:19First Quarter16Sun
17Mon7:502.68:082.61:250.31:510.56:334:18First Quarter17Mon
18Tue8:432.69:052.52:180.42:490.56:344:17Waxing Gibbous18Tue
19Wed9:322.79:582.53:090.43:440.46:354:16Waxing Gibbous19Wed
20Thu10:162.710:452.53:560.44:320.36:364:16Waxing Gibbous20Thu
21Fri10:572.811:282.54:390.45:150.26:384:15Waxing Gibbous21Fri
22Sat11:352.95:190.45:550.26:394:14Full Moon22Sat
23Sun12:082.512:122.95:580.46:340.16:404:14Full Moon23Sun
24Mon12:482.512:492.96:370.47:130.16:414:13Full Moon24Mon
25Tue1:282.51:282.97:160.47:530.16:424:13Full Moon25Tue
26Wed2:082.52:082.97:560.48:340.16:434:12Waning Gibbous26Wed
27Thu2:492.52:492.98:380.49:160.16:444:12Waning Gibbous27Thu
28Fri3:312.53:332.99:230.410:010.16:454:12Waning Gibbous28Fri
29Sat4:162.54:212.910:110.410:480.16:464:11Waning Gibbous29Sat
30Sun5:052.65:142.811:040.411:390.16:474:11Third Quarter30Sun
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 8:40 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 spring phase. Tonight's moon is 5% 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 Crescent (5% 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