Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 5h 55m at 12:06 am (0.2 ft)
Next high tide (tomorrow) : 6:14 am (2.7 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Mar 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:253.03:482.99:32-0.19:540.06:135:31Waxing Crescent1Sun
2Mon4:102.94:362.810:210.010:400.16:125:33Waxing Crescent2Mon
3Tue4:562.85:272.611:110.111:290.36:105:34First Quarter3Tue
4Wed5:462.76:212.412:050.36:085:35First Quarter4Wed
5Thu6:392.67:182.312:200.41:010.46:075:36First Quarter5Thu
6Fri7:352.58:172.31:150.51:590.46:055:37First Quarter6Fri
7Sat8:322.59:162.32:100.62:570.46:035:38Waxing Gibbous7Sat
8Sun10:302.611:102.44:070.54:520.37:026:40Waxing Gibbous8Sun
9Mon11:222.711:582.55:000.55:410.27:006:41Waxing Gibbous9Mon
10Tue12:082.85:490.46:240.16:586:42Waxing Gibbous10Tue
11Wed12:392.612:502.96:330.27:030.06:576:43Full Moon11Wed
12Thu1:182.71:302.97:150.17:420.06:556:44Full Moon12Thu
13Fri1:552.82:093.07:560.08:20-0.16:536:45Full Moon13Fri
14Sat2:322.92:503.08:37-0.19:00-0.16:526:46Full Moon14Sat
15Sun3:103.03:313.09:19-0.29:40-0.16:506:48Waning Gibbous15Sun
16Mon3:503.04:153.010:04-0.210:23-0.16:486:49Waning Gibbous16Mon
17Tue4:333.15:012.910:50-0.211:090.06:476:50Waning Gibbous17Tue
18Wed5:193.15:532.811:41-0.16:456:51Third Quarter18Wed
19Thu6:113.06:502.712:000.112:38-0.16:436:52Third Quarter19Thu
20Fri7:103.07:532.612:570.21:390.06:426:53Third Quarter20Fri
21Sat8:132.99:002.61:580.22:430.06:406:54Third Quarter21Sat
22Sun9:202.910:082.63:020.23:480.06:386:55Waning Crescent22Sun
23Mon10:283.011:132.74:080.24:51-0.16:366:56Waning Crescent23Mon
24Tue11:313.05:110.15:50-0.16:356:58Waning Crescent24Tue
25Wed12:092.912:283.16:090.06:42-0.26:336:59New Moon25Wed
26Thu1:003.01:203.17:02-0.27:30-0.26:317:00New Moon26Thu
27Fri1:473.12:083.17:51-0.28:15-0.26:307:01New Moon27Fri
28Sat2:313.12:543.18:37-0.28:58-0.16:287:02New Moon28Sat
29Sun3:133.13:393.09:22-0.29:400.06:267:03Waxing Crescent29Sun
30Mon3:543.04:222.810:06-0.110:220.16:257:04Waxing Crescent30Mon
31Tue4:352.95:072.710:510.011:050.36:237:05Waxing Crescent31Tue
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 3:10 am — 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 66% 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 (66% 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