Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 19m at 12:02 pm (-0.1 ft)
Next high tide : 6:26 pm (2.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jun 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:552.610:182.93:450.34:020.35:088:08Waxing Gibbous1Sun
2Mon10:502.711:083.14:390.14:540.25:088:09Waxing Gibbous2Mon
3Tue11:432.811:583.35:330.05:450.15:078:10Waxing Gibbous3Tue
4Wed12:352.96:24-0.26:360.05:078:10Full Moon4Wed
5Thu12:483.41:273.07:16-0.37:27-0.15:078:11Full Moon5Thu
6Fri1:393.52:203.08:07-0.48:20-0.15:068:12Full Moon6Fri
7Sat2:323.53:153.18:59-0.59:13-0.15:068:12Waning Gibbous7Sat
8Sun3:273.54:093.19:51-0.410:08-0.15:068:13Waning Gibbous8Sun
9Mon4:223.45:053.110:44-0.411:040.05:068:13Waning Gibbous9Mon
10Tue5:203.36:023.011:39-0.25:058:14Third Quarter10Tue
11Wed6:193.17:003.012:030.012:35-0.15:058:15Third Quarter11Wed
12Thu7:212.97:593.01:050.11:330.05:058:15Third Quarter12Thu
13Fri8:242.88:573.02:080.22:300.15:058:15Third Quarter13Fri
14Sat9:272.79:543.03:100.23:270.25:058:16Waning Crescent14Sat
15Sun10:292.610:493.04:110.24:230.35:058:16Waning Crescent15Sun
16Mon11:262.611:393.05:090.25:160.45:058:17Waning Crescent16Mon
17Tue12:172.66:010.16:040.45:058:17Waning Crescent17Tue
18Wed12:253.01:022.66:470.16:490.45:058:17New Moon18Wed
19Thu1:063.01:442.67:290.17:310.45:068:18New Moon19Thu
20Fri1:473.02:242.68:080.18:120.45:068:18New Moon20Fri
21Sat2:263.03:042.68:470.18:520.45:068:18New Moon21Sat
22Sun3:062.93:432.79:260.19:330.45:068:18Waxing Crescent22Sun
23Mon3:462.94:212.710:040.110:150.45:068:19Waxing Crescent23Mon
24Tue4:262.95:012.710:430.210:570.45:078:19Waxing Crescent24Tue
25Wed5:072.85:412.711:240.211:420.45:078:19Waxing Crescent25Wed
26Thu5:512.76:242.712:070.25:078:19First Quarter26Thu
27Fri6:382.77:092.812:300.412:520.35:088:19First Quarter27Fri
28Sat7:292.67:572.81:210.41:400.35:088:19First Quarter28Sat
29Sun8:222.68:472.92:150.32:310.35:098:19First Quarter29Sun
30Mon9:182.69:403.03:100.23:240.35:098:19Waxing 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 3:14 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 37% 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 First Quarter (37% 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