Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 2h 48m at 1:52 pm (0.2 ft)
Next high tide : 8:17 pm (2.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Sep 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:523.01:272.77:100.07:190.26:077:13Full Moon1Tue
2Wed1:363.02:072.87:510.18:020.26:087:11Full Moon2Wed
3Thu2:183.02:452.88:290.18:430.26:097:10Full Moon3Thu
4Fri2:582.93:212.89:070.19:230.26:107:08Waning Gibbous4Fri
5Sat3:372.93:582.89:440.210:040.26:117:06Waning Gibbous5Sat
6Sun4:162.84:352.810:210.310:450.36:127:05Waning Gibbous6Sun
7Mon4:572.75:142.711:010.411:280.36:137:03Waning Gibbous7Mon
8Tue5:412.65:562.711:420.56:147:01Third Quarter8Tue
9Wed6:282.56:422.712:150.412:280.56:157:00Third Quarter9Wed
10Thu7:192.47:322.71:060.41:180.66:166:58Third Quarter10Thu
11Fri8:142.48:262.71:590.52:110.66:176:56Third Quarter11Fri
12Sat9:102.49:222.72:550.43:060.66:186:54Waning Crescent12Sat
13Sun10:072.410:192.83:510.34:030.56:196:53Waning Crescent13Sun
14Mon11:022.611:143.04:470.24:590.46:206:51Waning Crescent14Mon
15Tue11:532.85:390.05:530.26:216:49Waning Crescent15Tue
16Wed12:073.112:402.96:28-0.16:440.06:226:47New Moon16Wed
17Thu12:573.31:273.17:15-0.37:34-0.26:236:46New Moon17Thu
18Fri1:473.32:153.38:03-0.38:25-0.36:246:44New Moon18Fri
19Sat2:383.43:033.48:50-0.39:16-0.46:256:42Waxing Crescent19Sat
20Sun3:303.33:533.49:39-0.310:08-0.46:266:41Waxing Crescent20Sun
21Mon4:243.24:443.410:29-0.211:02-0.36:276:39Waxing Crescent21Mon
22Tue5:193.05:383.311:210.06:286:37First Quarter22Tue
23Wed6:182.96:363.112:00-0.212:180.16:296:35First Quarter23Wed
24Thu7:222.77:393.01:010.01:190.36:306:34First Quarter24Thu
25Fri8:292.68:452.92:050.12:220.46:316:32First Quarter25Fri
26Sat9:362.69:512.93:100.23:260.46:336:30Waxing Gibbous26Sat
27Sun10:402.610:532.94:150.24:300.46:346:28Waxing Gibbous27Sun
28Mon11:352.711:482.95:140.25:270.46:356:27Waxing Gibbous28Mon
29Tue12:222.76:030.26:160.36:366:25Waxing Gibbous29Tue
30Wed12:342.91:022.86:450.27:000.26:376:23Full Moon30Wed
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 5:04 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places South Yarmouth, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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