Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 4m at 11:25 pm (0.2 ft)
Next high tide (tomorrow) : 5:43 am (3.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:423.03:122.88:580.09:120.15:357:58Waxing Crescent1Thu
2Fri3:233.03:512.99:370.09:550.15:367:57Waxing Crescent2Fri
3Sat4:053.04:313.010:180.010:410.15:377:56Waxing Crescent3Sat
4Sun4:502.95:153.011:010.011:290.15:387:55Waxing Crescent4Sun
5Mon5:382.96:023.111:480.15:397:54First Quarter5Mon
6Tue6:312.86:553.112:230.112:400.15:407:52First Quarter6Tue
7Wed7:292.77:523.11:200.11:360.25:417:51First Quarter7Wed
8Thu8:312.68:533.12:210.12:360.25:427:50Waxing Gibbous8Thu
9Fri9:362.69:563.13:230.13:380.25:437:49Waxing Gibbous9Fri
10Sat10:422.711:003.24:260.04:400.25:447:47Waxing Gibbous10Sat
11Sun11:442.85:27-0.15:410.15:457:46Waxing Gibbous11Sun
12Mon12:003.212:402.96:24-0.26:380.05:467:44Full Moon12Mon
13Tue12:563.31:323.07:15-0.27:31-0.15:477:43Full Moon13Tue
14Wed1:483.32:223.08:04-0.28:22-0.15:487:42Full Moon14Wed
15Thu2:393.23:093.18:51-0.29:11-0.15:497:40Waning Gibbous15Thu
16Fri3:273.13:533.09:36-0.19:580.05:507:39Waning Gibbous16Fri
17Sat4:143.04:373.010:200.010:460.15:517:37Waning Gibbous17Sat
18Sun5:012.85:212.911:040.211:340.25:527:36Waning Gibbous18Sun
19Mon5:482.76:082.811:500.35:537:34Third Quarter19Mon
20Tue6:392.56:572.712:250.312:380.55:547:33Third Quarter20Tue
21Wed7:332.47:502.71:180.41:290.65:557:31Third Quarter21Wed
22Thu8:282.48:442.72:130.52:220.65:567:30Third Quarter22Thu
23Fri9:252.39:392.73:090.53:170.65:577:28Waning Crescent23Fri
24Sat10:212.410:342.74:040.44:110.65:587:27Waning Crescent24Sat
25Sun11:132.511:242.84:570.45:030.55:597:25Waning Crescent25Sun
26Mon11:592.65:430.35:510.46:007:24Waning Crescent26Mon
27Tue12:092.912:402.76:260.26:360.36:017:22New Moon27Tue
28Wed12:513.01:192.87:060.17:190.16:027:20New Moon28Wed
29Thu1:333.01:582.97:460.08:020.06:037:19New Moon29Thu
30Fri2:143.12:383.08:26-0.18:46-0.16:047:17New Moon30Fri
31Sat2:573.13:193.19:07-0.19:31-0.16:057:15Waxing Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

Show All
What time does the tide turn (slack tide) in South Yarmouth, MA today?

Slack tide in South Yarmouth, MA is approximately 2:34 am — 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Crescent (27% illuminated). This places South Yarmouth, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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