Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 6:29 pm (0.1 ft)
Next high tide : in 25m at 12:33 pm (2.8 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Dec 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:022.93:133.38:570.09:38-0.36:484:11Waxing Crescent1Tue
2Wed3:582.94:103.29:530.110:33-0.26:494:10Waxing Crescent2Wed
3Thu4:562.85:103.010:520.211:300.06:504:10First Quarter3Thu
4Fri5:552.86:132.811:550.36:514:10First Quarter4Fri
5Sat6:542.77:152.612:280.112:580.36:524:10First Quarter5Sat
6Sun7:512.78:182.51:240.32:010.36:534:10Waxing Gibbous6Sun
7Mon8:462.79:182.52:200.33:010.36:544:10Waxing Gibbous7Mon
8Tue9:382.810:132.53:130.43:580.36:554:10Waxing Gibbous8Tue
9Wed10:262.811:022.54:030.44:480.26:564:10Waxing Gibbous9Wed
10Thu11:082.811:452.54:490.45:320.26:574:10Waxing Gibbous10Thu
11Fri11:482.95:310.46:120.16:574:10Full Moon11Fri
12Sat12:262.512:272.96:110.46:510.16:584:10Full Moon12Sat
13Sun1:062.51:052.96:510.47:290.16:594:10Full Moon13Sun
14Mon1:452.51:442.97:300.48:070.17:004:11Full Moon14Mon
15Tue2:242.52:232.98:110.48:460.17:004:11Waning Gibbous15Tue
16Wed3:022.53:032.88:520.49:250.17:014:11Waning Gibbous16Wed
17Thu3:412.53:442.89:340.410:060.17:024:11Waning Gibbous17Thu
18Fri4:222.64:282.810:190.410:490.17:024:12Waning Gibbous18Fri
19Sat5:052.65:172.711:080.411:360.17:034:12Third Quarter19Sat
20Sun5:522.76:092.712:020.37:034:13Third Quarter20Sun
21Mon6:422.87:062.612:250.212:580.27:044:13Third Quarter21Mon
22Tue7:342.98:052.61:180.21:560.17:044:14Waning Crescent22Tue
23Wed8:293.09:062.62:120.22:560.07:054:14Waning Crescent23Wed
24Thu9:263.110:072.73:100.13:56-0.17:054:15Waning Crescent24Thu
25Fri10:233.311:062.84:080.04:54-0.37:064:16Waning Crescent25Fri
26Sat11:193.45:040.05:49-0.47:064:16New Moon26Sat
27Sun12:022.812:143.45:59-0.16:43-0.57:064:17New Moon27Sun
28Mon12:572.91:093.46:53-0.17:35-0.57:064:18New Moon28Mon
29Tue1:522.92:033.47:47-0.18:27-0.47:074:18Waxing Crescent29Tue
30Wed2:452.92:573.38:40-0.19:17-0.37:074:19Waxing Crescent30Wed
31Thu3:372.93:503.19:340.010:07-0.27:074:20Waxing Crescent31Thu
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 3:31 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 1% 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 New Moon (1% 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