Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 5h 06m at 7:05 pm (0.5 ft)
Next high tide (tomorrow) : 1:22 am (2.9 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:31 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:102.95:302.911:150.011:44-0.17:074:21Third Quarter1Wed
2Thu6:072.96:322.812:160.17:074:22Third Quarter2Thu
3Fri7:042.97:362.612:410.01:190.17:074:23Third Quarter3Fri
4Sat8:032.98:402.51:380.22:230.17:074:24Waning Crescent4Sat
5Sun9:012.99:452.52:360.33:260.17:074:25Waning Crescent5Sun
6Mon9:582.910:442.53:340.34:260.17:074:26Waning Crescent6Mon
7Tue10:512.911:352.54:290.45:190.07:074:27Waning Crescent7Tue
8Wed11:382.95:190.46:050.07:064:28New Moon8Wed
9Thu12:212.512:222.96:040.36:470.07:064:29New Moon9Thu
10Fri1:032.51:032.96:470.37:270.07:064:30New Moon10Fri
11Sat1:422.51:432.97:280.38:050.07:064:31New Moon11Sat
12Sun2:202.52:222.88:090.38:420.17:054:32Waxing Crescent12Sun
13Mon2:572.53:022.88:490.39:190.17:054:33Waxing Crescent13Mon
14Tue3:342.53:412.79:300.39:560.27:054:34Waxing Crescent14Tue
15Wed4:122.54:232.610:120.410:360.27:044:36Waxing Crescent15Wed
16Thu4:522.55:072.510:580.411:180.37:044:37First Quarter16Thu
17Fri5:342.55:552.411:470.47:034:38First Quarter17Fri
18Sat6:202.66:472.312:030.412:390.47:024:39First Quarter18Sat
19Sun7:092.67:432.312:520.41:340.47:024:40First Quarter19Sun
20Mon8:022.78:432.31:440.52:320.37:014:41Waxing Gibbous20Mon
21Tue8:582.89:432.32:400.43:320.27:014:43Waxing Gibbous21Tue
22Wed9:562.910:412.53:380.34:290.07:004:44Waxing Gibbous22Wed
23Thu10:523.111:362.64:360.25:24-0.26:594:45Full Moon23Thu
24Fri11:463.25:300.16:15-0.36:584:46Full Moon24Fri
25Sat12:282.812:393.36:24-0.17:06-0.56:584:48Full Moon25Sat
26Sun1:192.91:333.47:17-0.27:55-0.56:574:49Full Moon26Sun
27Mon2:103.02:263.48:10-0.38:44-0.56:564:50Waning Gibbous27Mon
28Tue3:003.13:193.39:03-0.39:33-0.46:554:51Waning Gibbous28Tue
29Wed3:513.14:123.19:57-0.310:23-0.36:544:53Waning Gibbous29Wed
30Thu4:423.15:082.910:53-0.211:16-0.16:534:54Third Quarter30Thu
31Fri5:363.06:082.711:520.06:524:55Third Quarter31Fri
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 10:13 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 99% 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 (99% 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