Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 1h 55m at 5:32 pm (0.2 ft)
Next high tide : 11:48 pm (3.3 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:172.45:232.711:120.611:510.46:386:21Waning Gibbous1Wed
2Thu6:052.46:122.711:590.66:396:19Third Quarter2Thu
3Fri6:572.37:062.712:430.412:520.76:406:18Third Quarter3Fri
4Sat7:542.38:042.71:380.41:500.66:416:16Third Quarter4Sat
5Sun8:512.49:042.82:350.42:490.56:426:14Waning Crescent5Sun
6Mon9:482.610:042.93:310.33:490.46:446:13Waning Crescent6Mon
7Tue10:422.811:023.04:260.14:470.26:456:11Waning Crescent7Tue
8Wed11:333.011:563.15:190.05:43-0.16:466:09Waning Crescent8Wed
9Thu12:213.26:09-0.16:35-0.36:476:08New Moon9Thu
10Fri12:483.21:093.46:57-0.27:27-0.46:486:06New Moon10Fri
11Sat1:403.21:573.57:45-0.38:18-0.56:496:04New Moon11Sat
12Sun2:323.22:473.58:34-0.29:10-0.56:506:03Waxing Crescent12Sun
13Mon3:253.13:383.59:25-0.110:03-0.46:516:01Waxing Crescent13Mon
14Tue4:193.04:323.310:160.010:57-0.26:526:00Waxing Crescent14Tue
15Wed5:162.85:283.211:110.211:550.06:535:58First Quarter15Wed
16Thu6:172.76:293.012:100.36:555:57First Quarter16Thu
17Fri7:222.67:352.812:570.11:130.56:565:55First Quarter17Fri
18Sat8:272.58:412.72:010.22:190.56:575:53First Quarter18Sat
19Sun9:292.69:452.73:030.33:230.56:585:52Waxing Gibbous19Sun
20Mon10:262.610:432.74:020.34:240.56:595:50Waxing Gibbous20Mon
21Tue11:152.711:342.74:540.35:170.47:005:49Waxing Gibbous21Tue
22Wed11:562.85:380.36:030.37:025:48Waxing Gibbous22Wed
23Thu12:182.712:332.86:170.36:440.27:035:46Full Moon23Thu
24Fri12:572.71:082.96:540.37:220.27:045:45Full Moon24Fri
25Sat1:352.71:422.97:300.37:590.17:055:43Full Moon25Sat
26Sun2:132.72:172.98:060.48:370.17:065:42Full Moon26Sun
27Mon2:512.62:542.98:430.49:160.17:075:41Waning Gibbous27Mon
28Tue3:302.63:322.99:210.59:560.27:095:39Waning Gibbous28Tue
29Wed4:102.54:122.810:010.510:380.27:105:38Waning Gibbous29Wed
30Thu4:532.44:552.810:440.611:240.37:115:37Waning Gibbous30Thu
31Fri5:392.45:432.811:320.67:125:35Third Quarter31Fri
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 8:40 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 5% 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 Crescent (5% 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