Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 1h 12m at 5:36 pm (0.6 ft)
Next high tide : 11:57 pm (2.8 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:562.56:032.711:500.66:386:22First Quarter1Sun
2Mon6:492.36:562.612:300.412:410.76:396:20First Quarter2Mon
3Tue7:452.37:532.61:250.51:360.86:406:19First Quarter3Tue
4Wed8:432.38:512.62:220.52:330.86:416:17First Quarter4Wed
5Thu9:392.39:482.63:170.53:290.76:426:15Waxing Gibbous5Thu
6Fri10:322.410:412.74:110.44:240.66:436:14Waxing Gibbous6Fri
7Sat11:182.611:302.84:590.35:140.46:446:12Waxing Gibbous7Sat
8Sun11:592.75:430.26:010.26:456:10Waxing Gibbous8Sun
9Mon12:142.912:382.96:250.16:450.16:466:09Full Moon9Mon
10Tue12:573.01:163.17:050.07:29-0.16:476:07Full Moon10Tue
11Wed1:403.01:563.27:460.08:13-0.26:486:05Full Moon11Wed
12Thu2:243.02:383.38:280.08:59-0.36:496:04Waning Gibbous12Thu
13Fri3:113.03:233.39:130.09:47-0.36:516:02Waning Gibbous13Fri
14Sat4:002.94:113.310:000.010:38-0.26:526:01Waning Gibbous14Sat
15Sun4:522.85:033.210:500.211:33-0.16:535:59Waning Gibbous15Sun
16Mon5:492.76:013.111:470.36:545:58Third Quarter16Mon
17Tue6:522.67:063.012:340.012:490.46:555:56Third Quarter17Tue
18Wed7:592.68:152.91:380.11:550.46:565:54Third Quarter18Wed
19Thu9:072.69:242.92:430.13:020.46:575:53Waning Crescent19Thu
20Fri10:122.710:312.93:470.14:090.36:585:51Waning Crescent20Fri
21Sat11:112.811:312.94:470.15:110.27:005:50Waning Crescent21Sat
22Sun12:012.95:400.16:050.17:015:48Waning Crescent22Sun
23Mon12:232.912:453.06:270.16:530.07:025:47New Moon23Mon
24Tue1:102.91:253.07:100.17:370.07:035:46New Moon24Tue
25Wed1:532.92:033.07:500.28:190.07:045:44New Moon25Wed
26Thu2:352.82:413.08:290.39:000.07:055:43New Moon26Thu
27Fri3:162.73:202.99:090.39:410.17:075:41Waxing Crescent27Fri
28Sat3:582.64:002.99:490.410:230.27:085:40Waxing Crescent28Sat
29Sun4:402.54:422.810:310.511:080.37:095:39Waxing Crescent29Sun
30Mon5:252.45:282.711:160.611:550.47:105:37Waxing Crescent30Mon
31Tue6:152.36:192.612:050.77:115:36First Quarter31Tue
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 8:46 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 92% 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 (92% 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