Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 9:49 pm (0.2 ft)
Next high tide : in 51m at 3:50 pm (2.8 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jun 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:083.51:493.17:35-0.57:48-0.15:088:08New Moon1Sun
2Mon2:023.52:443.18:28-0.58:41-0.15:088:09New Moon2Mon
3Tue2:563.53:393.09:20-0.49:340.05:078:10Waxing Crescent3Tue
4Wed3:513.44:333.010:12-0.310:280.15:078:11Waxing Crescent4Wed
5Thu4:453.25:272.911:04-0.211:230.25:078:11Waxing Crescent5Thu
6Fri5:403.06:212.911:570.05:068:12First Quarter6Fri
7Sat6:372.97:162.812:200.312:520.15:068:13First Quarter7Sat
8Sun7:352.78:102.81:180.41:450.35:068:13First Quarter8Sun
9Mon8:332.69:032.82:170.42:380.45:068:14First Quarter9Mon
10Tue9:302.59:542.83:140.43:300.45:068:14Waxing Gibbous10Tue
11Wed10:262.510:442.84:100.44:200.55:058:15Waxing Gibbous11Wed
12Thu11:182.511:302.85:030.35:090.55:058:15Waxing Gibbous12Thu
13Fri12:052.55:500.35:540.55:058:16Waxing Gibbous13Fri
14Sat12:122.912:492.66:330.26:370.45:058:16Full Moon14Sat
15Sun12:532.91:302.67:140.17:180.45:058:17Full Moon15Sun
16Mon1:323.02:102.67:540.17:590.45:058:17Full Moon16Mon
17Tue2:123.02:502.68:330.18:400.35:068:17Full Moon17Tue
18Wed2:523.03:302.79:130.09:220.35:068:18Waning Gibbous18Wed
19Thu3:333.04:102.79:540.010:050.35:068:18Waning Gibbous19Thu
20Fri4:153.04:512.810:350.010:510.35:068:18Waning Gibbous20Fri
21Sat4:593.05:352.811:190.011:400.35:068:18Waning Gibbous21Sat
22Sun5:472.96:222.912:060.05:068:19Third Quarter22Sun
23Mon6:402.97:133.012:320.212:570.15:078:19Third Quarter23Mon
24Tue7:362.88:063.01:290.21:500.15:078:19Third Quarter24Tue
25Wed8:352.89:023.12:270.12:450.15:078:19Waning Crescent25Wed
26Thu9:372.810:013.23:270.03:430.15:088:19Waning Crescent26Thu
27Fri10:402.811:003.34:28-0.14:420.15:088:19Waning Crescent27Fri
28Sat11:412.911:573.45:28-0.25:400.05:098:19Waning Crescent28Sat
29Sun12:392.96:25-0.36:360.05:098:19New Moon29Sun
30Mon12:533.41:343.07:19-0.37:310.05:108:19New Moon30Mon
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 6:49 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 91% 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 Waning Gibbous (91% 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