Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 11:17 pm (0.2 ft)
Next high tide : in 3h 30m at 5:06 pm (2.9 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 - Nov 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:292.69:462.63:030.33:280.57:135:34Waxing Gibbous1Wed
2Thu10:212.710:402.63:570.44:230.47:145:33Waxing Gibbous2Thu
3Fri11:092.711:292.74:460.35:130.37:155:32Waxing Gibbous3Fri
4Sat11:502.85:310.35:580.27:175:31Waxing Gibbous4Sat
5Sun12:122.711:532.75:120.35:390.26:184:30Full Moon5Sun
6Mon12:052.95:500.26:180.16:194:29Full Moon6Mon
7Tue12:322.812:423.06:280.26:580.06:204:27Full Moon7Tue
8Wed1:112.81:183.07:070.27:370.06:224:26Full Moon8Wed
9Thu1:502.71:573.07:460.28:180.06:234:25Waning Gibbous9Thu
10Fri2:312.72:373.08:270.39:000.06:244:24Waning Gibbous10Fri
11Sat3:132.73:193.09:100.39:440.06:254:23Waning Gibbous11Sat
12Sun3:582.74:063.09:570.310:320.06:264:22Waning Gibbous12Sun
13Mon4:472.74:572.910:480.311:250.16:284:21Third Quarter13Mon
14Tue5:412.75:552.911:450.36:294:21Third Quarter14Tue
15Wed6:382.76:562.912:210.112:450.36:304:20Third Quarter15Wed
16Thu7:362.87:582.91:190.01:470.26:314:19Waning Crescent16Thu
17Fri8:353.09:012.92:160.02:480.06:324:18Waning Crescent17Fri
18Sat9:333.110:023.03:14-0.13:49-0.16:344:17Waning Crescent18Sat
19Sun10:283.311:003.14:11-0.14:46-0.36:354:17Waning Crescent19Sun
20Mon11:203.411:543.15:05-0.25:40-0.46:364:16New Moon20Mon
21Tue12:113.45:56-0.26:32-0.56:374:15New Moon21Tue
22Wed12:473.11:013.46:46-0.27:22-0.46:384:15New Moon22Wed
23Thu1:393.01:503.47:36-0.18:12-0.46:394:14Waxing Crescent23Thu
24Fri2:303.02:403.38:250.09:01-0.36:414:13Waxing Crescent24Fri
25Sat3:212.93:303.19:150.19:51-0.16:424:13Waxing Crescent25Sat
26Sun4:112.84:203.010:060.210:410.06:434:12Waxing Crescent26Sun
27Mon5:032.75:132.810:580.411:330.26:444:12First Quarter27Mon
28Tue5:572.66:092.711:540.56:454:12First Quarter28Tue
29Wed6:502.67:052.612:260.312:510.56:464:11First Quarter29Wed
30Thu7:432.68:012.51:180.41:470.56:474:11First Quarter30Thu
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 8:11 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 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