41.6650’ N, 70.1833’ W

South Yarmouth, MA

73°
H -°
L 68°
SSW
6mph
Low tide
5:03 am

Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 5h 10m at 5:03 am (0.4 ft)
Next high tide (tomorrow) : 11:20 am (2.4 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Sep 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:233.12:493.08:33-0.18:530.06:077:13Waxing Crescent1Mon
2Tue3:103.03:313.09:160.09:390.06:087:12Waxing Crescent2Tue
3Wed3:552.94:123.09:580.110:240.16:097:10Waxing Crescent3Wed
4Thu4:392.84:542.910:390.311:100.26:107:08Waxing Crescent4Thu
5Fri5:252.65:382.811:230.411:580.36:117:07First Quarter5Fri
6Sat6:142.56:262.712:100.56:127:05First Quarter6Sat
7Sun7:072.47:192.612:510.41:010.66:137:03First Quarter7Sun
8Mon8:032.38:152.61:460.51:550.76:147:01First Quarter8Mon
9Tue9:022.39:122.62:430.52:510.76:157:00Waxing Gibbous9Tue
10Wed9:592.310:092.73:400.53:470.76:166:58Waxing Gibbous10Wed
11Thu10:532.411:012.74:340.44:420.66:176:56Waxing Gibbous11Thu
12Fri11:392.511:482.85:220.35:310.46:186:55Waxing Gibbous12Fri
13Sat12:202.76:050.26:170.36:196:53Full Moon13Sat
14Sun12:322.912:592.86:450.17:000.16:206:51Full Moon14Sun
15Mon1:133.01:363.07:240.07:430.06:216:49Full Moon15Mon
16Tue1:553.12:153.18:040.08:27-0.16:226:48Full Moon16Tue
17Wed2:383.12:563.28:45-0.19:12-0.26:236:46Waning Gibbous17Wed
18Thu3:233.03:393.29:280.09:59-0.26:246:44Waning Gibbous18Thu
19Fri4:102.94:253.210:130.010:49-0.16:256:42Waning Gibbous19Fri
20Sat5:012.85:153.211:020.111:44-0.16:266:41Third Quarter20Sat
21Sun5:562.76:123.111:570.26:276:39Third Quarter21Sun
22Mon6:582.67:153.012:430.012:570.36:286:37Third Quarter22Mon
23Tue8:052.68:222.91:470.12:020.46:296:35Third Quarter23Tue
24Wed9:132.69:312.92:530.23:090.46:306:34Waning Crescent24Wed
25Thu10:202.610:382.93:570.14:150.36:316:32Waning Crescent25Thu
26Fri11:202.811:393.04:590.15:170.26:326:30Waning Crescent26Fri
27Sat12:122.95:530.06:120.16:336:29New Moon27Sat
28Sun12:313.012:573.06:410.07:020.06:356:27New Moon28Sun
29Mon1:193.01:393.07:240.07:480.06:366:25New Moon29Mon
30Tue2:043.02:193.08:050.18:310.06:376:23New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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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 81% 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 Waxing Gibbous (81% 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