Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 2h 51m at 7:31 pm (0.5 ft)
Next high tide (tomorrow) : 1:46 am (2.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:09 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:243.111:122.64:100.24:58-0.27:074:21Waxing Gibbous1Sun
2Mon11:183.35:040.15:52-0.37:074:22Full Moon2Mon
3Tue12:062.712:123.45:580.06:46-0.47:074:23Full Moon3Tue
4Wed1:002.81:063.46:52-0.17:34-0.57:074:24Full Moon4Wed
5Thu1:542.92:063.47:46-0.28:28-0.57:074:25Waning Gibbous5Thu
6Fri2:423.03:003.38:40-0.29:16-0.47:074:26Waning Gibbous6Fri
7Sat3:363.03:543.29:34-0.210:10-0.37:074:27Waning Gibbous7Sat
8Sun4:303.04:483.010:34-0.111:04-0.27:074:28Third Quarter8Sun
9Mon5:242.95:482.811:340.011:580.07:064:29Third Quarter9Mon
10Tue6:242.96:482.612:340.17:064:30Third Quarter10Tue
11Wed7:182.87:542.512:520.21:340.27:064:31Third Quarter11Wed
12Thu8:182.89:002.41:520.32:400.27:064:32Waning Crescent12Thu
13Fri9:122.710:002.42:460.43:400.27:054:33Waning Crescent13Fri
14Sat10:122.810:542.43:460.44:400.27:054:34Waning Crescent14Sat
15Sun11:002.811:422.44:340.45:280.17:044:35Waning Crescent15Sun
16Mon11:422.85:220.46:100.17:044:36New Moon16Mon
17Tue12:242.412:242.86:040.46:460.17:034:38New Moon17Tue
18Wed1:002.51:002.96:460.37:220.07:034:39New Moon18Wed
19Thu1:362.51:422.97:280.37:580.07:024:40New Moon19Thu
20Fri2:122.52:182.88:040.38:340.07:024:41Waxing Crescent20Fri
21Sat2:482.62:542.88:460.39:100.17:014:42Waxing Crescent21Sat
22Sun3:242.63:362.79:220.39:460.17:004:44Waxing Crescent22Sun
23Mon4:002.64:122.610:040.310:280.26:594:45Waxing Crescent23Mon
24Tue4:422.65:002.510:520.311:100.26:594:46First Quarter24Tue
25Wed5:242.75:482.511:400.311:580.36:584:47First Quarter25Wed
26Thu6:122.76:422.412:340.36:574:49First Quarter26Thu
27Fri7:062.77:422.312:460.31:340.26:564:50First Quarter27Fri
28Sat8:002.88:482.41:460.42:340.16:554:51Waxing Gibbous28Sat
29Sun9:062.99:482.42:460.33:400.06:544:52Waxing Gibbous29Sun
30Mon10:063.110:542.63:460.24:40-0.16:534:54Waxing Gibbous30Mon
31Tue11:063.211:482.74:460.15:34-0.36:524:55Full Moon31Tue
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 10:38 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 100% 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 Full Moon (100% 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