41.6650’ N, 70.1833’ W

South Yarmouth, MA

63°
H 64°
L 52°
NNE
8mph
High tide
8:01 pm

Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, September 19, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 2:30 am (0.5 ft)
Next high tide : in 5h 29m at 8:01 pm (2.6 ft)
Sunset today : 6:43 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jul 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:123.15:522.911:34-0.111:550.25:098:19First Quarter1Fri
2Sat6:063.06:452.912:260.05:108:18First Quarter2Sat
3Sun7:042.97:393.012:530.21:190.05:108:18First Quarter3Sun
4Mon8:042.88:343.11:530.12:150.15:118:18First Quarter4Mon
5Tue9:072.79:313.12:540.13:110.25:128:18Waxing Gibbous5Tue
6Wed10:102.710:293.13:560.04:090.25:128:17Waxing Gibbous6Wed
7Thu11:132.711:263.24:570.05:070.35:138:17Waxing Gibbous7Thu
8Fri12:122.75:55-0.16:020.35:148:17Full Moon8Fri
9Sat12:203.21:062.76:49-0.16:550.35:148:16Full Moon9Sat
10Sun1:123.21:572.77:40-0.17:450.35:158:16Full Moon10Sun
11Mon2:013.12:462.78:28-0.18:330.35:168:16Full Moon11Mon
12Tue2:493.13:322.79:130.09:200.35:168:15Waning Gibbous12Tue
13Wed3:363.04:152.79:560.010:060.45:178:15Waning Gibbous13Wed
14Thu4:202.94:572.710:380.110:520.45:188:14Waning Gibbous14Thu
15Fri5:052.85:392.611:200.211:380.45:198:13Waning Gibbous15Fri
16Sat5:502.76:232.612:030.35:208:13Third Quarter16Sat
17Sun6:392.67:072.612:280.512:480.45:208:12Third Quarter17Sun
18Mon7:292.57:542.61:180.51:340.55:218:11Third Quarter18Mon
19Tue8:212.48:412.62:100.52:220.65:228:11Third Quarter19Tue
20Wed9:152.39:312.73:030.53:110.65:238:10Waning Crescent20Wed
21Thu10:102.310:222.73:570.54:020.65:248:09Waning Crescent21Thu
22Fri11:052.311:122.84:510.44:540.65:258:08Waning Crescent22Fri
23Sat11:562.45:430.35:450.55:268:08Waning Crescent23Sat
24Sun12:012.912:442.56:310.16:340.45:278:07New Moon24Sun
25Mon12:483.11:302.67:170.07:220.35:288:06New Moon25Mon
26Tue1:363.22:172.78:03-0.18:100.25:288:05New Moon26Tue
27Wed2:243.23:042.88:49-0.29:000.15:298:04Waxing Crescent27Wed
28Thu3:133.33:513.09:35-0.29:500.05:308:03Waxing Crescent28Thu
29Fri4:043.24:383.010:22-0.210:420.05:318:02Waxing Crescent29Fri
30Sat4:553.25:273.111:10-0.211:360.05:328:01Waxing Crescent30Sat
31Sun5:493.06:193.112:01-0.15:338:00First Quarter31Sun
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 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