Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 9:08 pm (0.3 ft)
Next high tide : in 6h 11m at 3:14 pm (2.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:293.04:493.110:33-0.111:02-0.27:074:21First Quarter1Mon
2Tue5:253.05:492.911:330.011:58-0.17:074:22First Quarter2Tue
3Wed6:222.96:512.712:350.17:074:23First Quarter3Wed
4Thu7:212.97:552.612:550.11:380.17:074:24First Quarter4Thu
5Fri8:202.89:002.51:530.22:420.17:074:25Waxing Gibbous5Fri
6Sat9:192.810:022.42:510.33:440.17:074:26Waxing Gibbous6Sat
7Sun10:152.810:562.53:490.44:410.17:074:27Waxing Gibbous7Sun
8Mon11:042.911:442.54:410.45:290.17:064:28Waxing Gibbous8Mon
9Tue11:492.95:280.36:120.07:064:29Full Moon9Tue
10Wed12:262.512:292.96:110.36:510.07:064:30Full Moon10Wed
11Thu1:052.51:082.96:520.37:280.07:064:31Full Moon11Thu
12Fri1:422.61:462.97:320.28:040.07:054:32Full Moon12Fri
13Sat2:192.62:242.88:110.28:400.07:054:33Waning Gibbous13Sat
14Sun2:552.63:032.88:510.29:170.17:054:34Waning Gibbous14Sun
15Mon3:322.63:422.79:310.39:550.17:044:36Waning Gibbous15Mon
16Tue4:092.64:232.610:140.310:350.27:044:37Waning Gibbous16Tue
17Wed4:492.65:082.510:590.311:180.37:034:38Third Quarter17Wed
18Thu5:332.65:572.411:490.37:024:39Third Quarter18Thu
19Fri6:212.76:512.412:060.312:430.37:024:40Third Quarter19Fri
20Sat7:132.77:492.412:570.31:410.27:014:41Third Quarter20Sat
21Sun8:102.88:512.41:530.32:400.27:014:43Waning Crescent21Sun
22Mon9:092.99:532.52:520.33:410.07:004:44Waning Crescent22Mon
23Tue10:083.110:512.63:520.24:39-0.26:594:45Waning Crescent23Tue
24Wed11:063.211:462.84:500.05:33-0.36:584:46New Moon24Wed
25Thu12:003.45:45-0.26:25-0.56:584:48New Moon25Thu
26Fri12:393.012:543.46:39-0.37:16-0.66:574:49New Moon26Fri
27Sat1:313.11:483.47:32-0.48:05-0.66:564:50Waxing Crescent27Sat
28Sun2:223.22:413.38:25-0.48:55-0.56:554:51Waxing Crescent28Sun
29Mon3:123.23:343.29:18-0.49:44-0.46:544:53Waxing Crescent29Mon
30Tue4:033.14:283.010:12-0.310:35-0.26:534:54Waxing Crescent30Tue
31Wed4:553.05:242.811:08-0.111:280.06:524:55First Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

Show All
What time does the tide turn (slack tide) in South Yarmouth, MA today?

Slack tide in South Yarmouth, MA is approximately 6:11 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 96% 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 (96% 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