Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 2:36 pm (0.3 ft)
Next high tide : in 1h 05m at 8:30 am (2.6 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jun 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:153.16:022.711:43-0.15:088:08Third Quarter1Sun
2Mon6:123.06:592.812:000.312:390.05:088:09Third Quarter2Mon
3Tue7:133.07:582.81:010.31:370.05:078:10Third Quarter3Tue
4Wed8:172.98:572.92:040.32:340.15:078:10Third Quarter4Wed
5Thu9:202.99:553.03:070.23:320.15:078:11Waning Crescent5Thu
6Fri10:242.810:513.14:090.14:290.15:068:12Waning Crescent6Fri
7Sat11:242.811:433.25:090.05:240.15:068:12Waning Crescent7Sat
8Sun12:202.86:05-0.16:150.15:068:13New Moon8Sun
9Mon12:323.21:122.86:56-0.27:040.25:068:14New Moon9Mon
10Tue1:203.22:022.87:45-0.27:520.25:068:14New Moon10Tue
11Wed2:063.22:502.78:32-0.18:380.35:058:15New Moon11Wed
12Thu2:533.13:372.79:18-0.19:240.35:058:15Waxing Crescent12Thu
13Fri3:383.04:222.610:030.010:100.45:058:16Waxing Crescent13Fri
14Sat4:242.95:072.610:480.110:570.55:058:16Waxing Crescent14Sat
15Sun5:102.85:532.611:330.211:450.65:058:16Waxing Crescent15Sun
16Mon5:582.76:412.512:200.35:058:17First Quarter16Mon
17Tue6:492.67:292.512:370.61:080.45:058:17First Quarter17Tue
18Wed7:412.68:162.61:290.61:550.45:068:18First Quarter18Wed
19Thu8:332.59:032.62:220.62:430.55:068:18First Quarter19Thu
20Fri9:262.59:502.73:150.53:300.55:068:18Waxing Gibbous20Fri
21Sat10:192.510:372.84:070.44:190.55:068:18Waxing Gibbous21Sat
22Sun11:112.511:232.94:580.35:070.55:068:18Waxing Gibbous22Sun
23Mon11:592.55:470.25:530.45:078:19Waxing Gibbous23Mon
24Tue12:073.012:462.66:340.16:400.35:078:19Full Moon24Tue
25Wed12:513.11:332.67:200.07:260.35:078:19Full Moon25Wed
26Thu1:373.22:212.78:07-0.18:140.25:088:19Full Moon26Thu
27Fri2:263.33:102.88:55-0.29:040.25:088:19Waning Gibbous27Fri
28Sat3:163.34:002.89:44-0.29:550.15:088:19Waning Gibbous28Sat
29Sun4:083.34:522.910:34-0.210:490.15:098:19Waning Gibbous29Sun
30Mon5:023.25:452.911:25-0.211:460.15:098:19Waning Gibbous30Mon
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 11:33 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 30% 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 Waning Crescent (30% 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