Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 46m at 4:46 pm (0.6 ft)
Next high tide : 11:09 pm (2.8 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:212.610:362.93:560.24:110.46:386:22Waning Crescent1Sat
2Sun11:202.711:352.94:580.25:130.46:396:20Waning Crescent2Sun
3Mon12:102.85:510.16:060.36:406:18Waning Crescent3Mon
4Tue12:252.912:522.86:360.16:520.26:416:17New Moon4Tue
5Wed1:092.91:302.97:150.17:330.16:426:15New Moon5Wed
6Thu1:492.92:052.97:520.28:130.16:436:13New Moon6Thu
7Fri2:282.82:402.98:280.28:520.16:446:12New Moon7Fri
8Sat3:062.83:152.99:040.39:300.16:456:10Waxing Crescent8Sat
9Sun3:452.73:522.89:420.410:100.26:466:08Waxing Crescent9Sun
10Mon4:252.64:302.810:200.510:520.36:476:07Waxing Crescent10Mon
11Tue5:072.55:122.711:010.611:370.46:496:05Waxing Crescent11Tue
12Wed5:532.45:582.711:470.76:506:03First Quarter12Wed
13Thu6:442.36:502.612:270.412:380.76:516:02First Quarter13Thu
14Fri7:392.37:462.61:210.51:330.76:526:00First Quarter14Fri
15Sat8:352.38:442.72:160.42:300.76:535:59First Quarter15Sat
16Sun9:312.49:422.83:110.43:280.66:545:57Waxing Gibbous16Sun
17Mon10:242.610:382.94:050.34:240.46:555:56Waxing Gibbous17Mon
18Tue11:132.811:313.04:570.15:190.26:565:54Waxing Gibbous18Tue
19Wed11:593.05:460.06:10-0.16:585:53Full Moon19Wed
20Thu12:223.112:453.26:33-0.17:00-0.36:595:51Full Moon20Thu
21Fri1:123.21:313.47:19-0.27:50-0.47:005:50Full Moon21Fri
22Sat2:023.22:183.58:07-0.28:40-0.57:015:48Full Moon22Sat
23Sun2:533.23:073.58:55-0.29:32-0.57:025:47Waning Gibbous23Sun
24Mon3:473.13:593.49:46-0.110:25-0.47:035:45Waning Gibbous24Mon
25Tue4:422.94:543.310:390.111:21-0.27:055:44Waning Gibbous25Tue
26Wed5:402.85:523.111:350.27:065:42Third Quarter26Wed
27Thu6:442.76:573.012:22-0.112:370.47:075:41Third Quarter27Thu
28Fri7:512.68:052.81:260.11:430.47:085:40Third Quarter28Fri
29Sat8:572.69:132.82:310.22:500.57:095:38Waning Crescent29Sat
30Sun10:002.610:172.73:340.23:550.47:115:37Waning Crescent30Sun
31Mon10:562.711:152.74:320.34:550.47:125:36Waning Crescent31Mon
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 7:57 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 86% 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 Waxing Gibbous (86% 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