Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 19m at 10:13 am (0.1 ft)
Next high tide : 4:27 pm (2.8 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Sep 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:313.01:562.97:430.07:590.16:087:12Full Moon1Wed
2Thu2:113.02:343.08:220.08:410.06:097:11Full Moon2Thu
3Fri2:523.03:133.09:010.09:240.06:107:09Waning Gibbous3Fri
4Sat3:353.03:543.19:430.010:09-0.16:117:07Waning Gibbous4Sat
5Sun4:193.04:383.110:260.010:56-0.16:127:06Waning Gibbous5Sun
6Mon5:062.95:253.111:130.111:480.06:137:04Third Quarter6Mon
7Tue5:592.86:183.112:050.16:147:02Third Quarter7Tue
8Wed6:562.77:173.112:450.01:020.26:157:00Third Quarter8Wed
9Thu7:582.78:193.01:450.12:030.26:166:59Third Quarter9Thu
10Fri9:032.79:243.02:470.13:060.26:176:57Waning Crescent10Fri
11Sat10:082.810:293.13:500.04:100.26:186:55Waning Crescent11Sat
12Sun11:102.911:313.14:510.05:110.16:196:54Waning Crescent12Sun
13Mon12:063.05:48-0.16:08-0.16:206:52New Moon13Mon
14Tue12:273.212:573.16:40-0.27:01-0.16:216:50New Moon14Tue
15Wed1:193.21:443.27:28-0.27:51-0.26:226:48New Moon15Wed
16Thu2:083.22:303.28:14-0.28:39-0.26:236:47New Moon16Thu
17Fri2:563.13:143.18:59-0.19:25-0.16:246:45Waxing Crescent17Fri
18Sat3:423.03:583.19:430.010:110.06:256:43Waxing Crescent18Sat
19Sun4:272.94:423.010:270.210:580.16:266:41Waxing Crescent19Sun
20Mon5:142.75:272.911:120.311:460.26:276:40Waxing Crescent20Mon
21Tue6:032.66:162.812:010.46:286:38First Quarter21Tue
22Wed6:552.57:092.712:370.312:520.56:296:36First Quarter22Wed
23Thu7:502.48:042.61:310.41:460.66:306:34First Quarter23Thu
24Fri8:452.49:002.62:260.52:410.66:316:33First Quarter24Fri
25Sat9:402.59:552.73:200.43:360.66:326:31Waxing Gibbous25Sat
26Sun10:322.510:472.74:120.44:290.56:336:29Waxing Gibbous26Sun
27Mon11:192.711:342.85:000.35:180.46:346:28Waxing Gibbous27Mon
28Tue12:012.85:450.26:040.26:356:26Waxing Gibbous28Tue
29Wed12:182.912:412.96:270.16:480.16:366:24Full Moon29Wed
30Thu1:003.01:203.07:080.07:31-0.16:376:22Full Moon30Thu
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 1:20 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 84% 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 (84% 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