41.6650’ N, 70.1833’ W

South Yarmouth, MA

77°
H 78°
L 62°
WSW
10mph
High tide
12:06 pm

Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, August 25, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 5:53 pm (0.5 ft)
Next high tide : in 24m at 12:06 pm (2.5 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Gibbous (94% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Sep 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:342.56:210.36:220.56:077:14Waning Crescent1Thu
2Fri12:412.81:132.66:590.27:030.46:087:12New Moon2Fri
3Sat1:202.91:482.77:340.27:430.36:097:10New Moon3Sat
4Sun1:572.92:232.78:090.28:210.26:107:09New Moon4Sun
5Mon2:352.92:572.88:440.18:590.26:117:07New Moon5Mon
6Tue3:122.93:312.89:190.29:380.26:127:05Waxing Crescent6Tue
7Wed3:492.84:062.99:550.210:180.26:137:04Waxing Crescent7Wed
8Thu4:292.74:432.910:330.311:010.26:147:02Waxing Crescent8Thu
9Fri5:112.65:252.911:140.311:480.26:157:00First Quarter9Fri
10Sat5:582.66:122.912:000.46:166:58First Quarter10Sat
11Sun6:522.57:062.912:410.212:530.56:176:57First Quarter11Sun
12Mon7:522.48:072.91:400.31:520.56:186:55First Quarter12Mon
13Tue8:552.49:112.92:420.22:550.56:196:53Waxing Gibbous13Tue
14Wed10:012.510:173.03:460.24:000.46:206:52Waxing Gibbous14Wed
15Thu11:042.711:213.24:480.05:030.26:216:50Waxing Gibbous15Thu
16Fri12:012.95:45-0.16:020.06:226:48Full Moon16Fri
17Sat12:193.312:533.16:38-0.26:58-0.16:236:46Full Moon17Sat
18Sun1:133.31:433.27:28-0.37:50-0.36:246:45Full Moon18Sun
19Mon2:063.32:313.38:16-0.38:42-0.36:256:43Full Moon19Mon
20Tue2:583.23:193.39:03-0.29:32-0.36:266:41Waning Gibbous20Tue
21Wed3:493.14:063.29:50-0.110:22-0.26:276:39Waning Gibbous21Wed
22Thu4:402.94:543.110:380.111:140.06:286:38Waning Gibbous22Thu
23Fri5:322.85:443.011:270.36:296:36Third Quarter23Fri
24Sat6:272.66:382.812:080.112:200.56:306:34Third Quarter24Sat
25Sun7:262.47:372.71:060.31:170.66:316:32Third Quarter25Sun
26Mon8:282.48:382.62:070.42:160.76:326:31Third Quarter26Mon
27Tue9:282.49:392.63:080.43:160.76:336:29Waning Crescent27Tue
28Wed10:262.410:362.74:060.44:140.66:346:27Waning Crescent28Wed
29Thu11:162.511:262.74:580.45:060.56:356:26Waning Crescent29Thu
30Fri11:582.65:430.35:530.46:366:24Waning Crescent30Fri
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 94% 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 (94% 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