Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 3:00 am (0.1 ft)
Next high tide : in 1h 36m at 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 - Jan 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:012.512:022.95:450.46:280.17:074:21New Moon1Wed
2Thu12:432.512:422.96:270.47:070.07:074:22New Moon2Thu
3Fri1:222.51:212.97:070.47:450.07:074:23New Moon3Fri
4Sat2:012.52:002.97:470.48:220.17:074:24Waxing Crescent4Sat
5Sun2:382.52:392.88:270.49:000.17:074:25Waxing Crescent5Sun
6Mon3:162.53:192.89:070.49:380.17:074:26Waxing Crescent6Mon
7Tue3:542.53:592.79:490.410:170.27:074:27Waxing Crescent7Tue
8Wed4:332.54:422.610:330.410:590.27:064:28Waxing Crescent8Wed
9Thu5:152.55:292.611:210.411:440.37:064:29First Quarter9Thu
10Fri6:002.66:202.512:130.47:064:30First Quarter10Fri
11Sat6:482.77:162.412:320.31:080.37:064:31First Quarter11Sat
12Sun7:392.78:142.41:230.32:050.27:054:32Waxing Gibbous12Sun
13Mon8:342.89:152.42:170.33:050.17:054:33Waxing Gibbous13Mon
14Tue9:323.010:162.53:150.34:050.07:054:34Waxing Gibbous14Tue
15Wed10:303.111:142.64:140.25:03-0.27:044:35Waxing Gibbous15Wed
16Thu11:263.35:110.15:58-0.47:044:37Full Moon16Thu
17Fri12:102.712:213.46:06-0.16:51-0.57:034:38Full Moon17Fri
18Sat1:052.81:163.47:00-0.27:43-0.57:034:39Full Moon18Sat
19Sun1:582.92:113.47:54-0.28:34-0.57:024:40Waning Gibbous19Sun
20Mon2:513.03:063.38:48-0.29:24-0.47:014:41Waning Gibbous20Mon
21Tue3:423.04:003.19:43-0.210:14-0.37:014:43Waning Gibbous21Tue
22Wed4:343.04:552.910:38-0.111:06-0.17:004:44Third Quarter22Wed
23Thu5:282.95:532.711:370.06:594:45Third Quarter23Thu
24Fri6:222.86:542.512:000.112:370.16:584:46Third Quarter24Fri
25Sat7:182.77:562.412:550.31:390.26:584:47Third Quarter25Sat
26Sun8:162.79:002.31:510.42:410.36:574:49Waning Crescent26Sun
27Mon9:142.710:012.32:480.53:430.36:564:50Waning Crescent27Mon
28Tue10:092.710:542.33:450.54:390.26:554:51Waning Crescent28Tue
29Wed10:592.711:402.44:370.55:260.26:544:53Waning Crescent29Wed
30Thu11:432.85:230.46:070.16:534:54New Moon30Thu
31Fri12:212.412:232.86:050.46:450.16:524:55New Moon31Fri
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 11:43 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