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 : in 21m at 2:11 pm (0.3 ft)
Next high tide : 8:27 pm (3.0 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 - Aug 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:192.77:423.01:110.21:270.35:367:57Third Quarter1Thu
2Fri8:162.68:373.02:080.22:220.35:377:56Third Quarter2Fri
3Sat9:182.69:363.13:080.13:200.35:387:55Waning Crescent3Sat
4Sun10:222.610:383.24:100.04:210.35:397:54Waning Crescent4Sun
5Mon11:252.711:393.35:12-0.15:220.25:407:53Waning Crescent5Mon
6Tue12:252.86:11-0.26:210.15:417:51New Moon6Tue
7Wed12:383.31:212.97:07-0.37:170.05:427:50New Moon7Wed
8Thu1:343.42:153.07:59-0.38:12-0.15:437:49New Moon8Thu
9Fri2:293.33:083.08:50-0.39:05-0.15:447:48Waxing Crescent9Fri
10Sat3:233.33:573.09:39-0.29:570.05:457:46Waxing Crescent10Sat
11Sun4:153.24:453.010:27-0.110:490.05:467:45Waxing Crescent11Sun
12Mon5:063.05:333.011:140.011:420.15:477:43Waxing Crescent12Mon
13Tue5:582.86:222.912:030.25:487:42First Quarter13Tue
14Wed6:532.67:132.812:360.212:530.45:497:41First Quarter14Wed
15Thu7:492.58:062.71:330.31:460.55:507:39First Quarter15Thu
16Fri8:472.49:012.72:300.42:390.65:517:38First Quarter16Fri
17Sat9:462.39:572.73:280.43:340.75:527:36Waxing Gibbous17Sat
18Sun10:452.310:522.74:270.44:290.75:537:35Waxing Gibbous18Sun
19Mon11:372.411:422.85:210.45:210.65:547:33Waxing Gibbous19Mon
20Tue12:232.56:070.36:080.55:557:32Waxing Gibbous20Tue
21Wed12:272.81:042.56:480.26:510.45:567:30Full Moon21Wed
22Thu1:082.91:422.67:270.27:330.35:577:29Full Moon22Thu
23Fri1:473.02:192.78:040.18:130.35:587:27Full Moon23Fri
24Sat2:263.02:552.88:410.18:540.25:597:26Full Moon24Sat
25Sun3:063.03:312.99:180.09:350.16:007:24Waning Gibbous25Sun
26Mon3:463.04:082.99:560.010:170.16:017:22Waning Gibbous26Mon
27Tue4:272.94:483.010:360.111:030.16:027:21Waning Gibbous27Tue
28Wed5:122.85:323.011:200.111:530.16:037:19Third Quarter28Wed
29Thu6:022.76:213.012:080.26:047:18Third Quarter29Thu
30Fri6:582.67:163.012:480.11:020.36:057:16Third Quarter30Fri
31Sat7:582.68:163.01:470.12:010.46:067:14Third Quarter31Sat
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 5:19 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 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