Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 3:27 am (0.3 ft)
Next high tide : in 5h 22m at 9:10 pm (2.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Aug 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:292.69:502.93:100.23:240.45:357:58Waxing Gibbous1Fri
2Sat10:302.610:462.94:110.24:210.45:367:57Waxing Gibbous2Sat
3Sun11:272.611:372.95:090.25:150.45:377:55Waxing Gibbous3Sun
4Mon12:162.66:000.26:040.45:387:54Waxing Gibbous4Mon
5Tue12:232.91:002.66:440.26:480.45:397:53Full Moon5Tue
6Wed1:052.91:402.67:240.17:290.35:407:52Full Moon6Wed
7Thu1:452.92:182.78:020.18:090.35:417:50Full Moon7Thu
8Fri2:242.92:562.78:390.18:490.35:437:49Full Moon8Fri
9Sat3:032.93:322.79:160.19:290.35:447:48Waning Gibbous9Sat
10Sun3:412.94:092.79:540.110:090.35:457:46Waning Gibbous10Sun
11Mon4:202.94:462.810:320.110:510.35:467:45Waning Gibbous11Mon
12Tue5:012.85:252.811:110.211:350.35:477:44Waning Gibbous12Tue
13Wed5:442.76:072.811:540.25:487:42Third Quarter13Wed
14Thu6:312.76:542.812:230.312:400.35:497:41Third Quarter14Thu
15Fri7:232.67:452.91:150.31:310.35:507:40Third Quarter15Fri
16Sat8:192.68:392.92:100.22:250.35:517:38Third Quarter16Sat
17Sun9:172.69:373.03:080.23:220.35:527:37Waning Crescent17Sun
18Mon10:182.710:373.24:070.14:220.25:537:35Waning Crescent18Mon
19Tue11:192.811:363.35:06-0.15:210.15:547:34Waning Crescent19Tue
20Wed12:163.06:03-0.26:18-0.15:557:32New Moon20Wed
21Thu12:333.41:103.16:57-0.47:13-0.25:567:31New Moon21Thu
22Fri1:283.52:033.27:49-0.48:07-0.35:577:29New Moon22Fri
23Sat2:233.52:563.38:40-0.59:01-0.35:587:27Waxing Crescent23Sat
24Sun3:173.43:483.39:31-0.49:54-0.35:597:26Waxing Crescent24Sun
25Mon4:113.34:393.210:21-0.310:47-0.26:007:24Waxing Crescent25Mon
26Tue5:053.15:313.211:12-0.111:42-0.16:017:23Waxing Crescent26Tue
27Wed6:013.06:253.012:050.16:027:21First Quarter27Wed
28Thu6:592.87:212.912:400.11:000.26:037:20First Quarter28Thu
29Fri8:002.68:192.81:400.21:570.46:047:18First Quarter29Fri
30Sat9:012.59:182.82:400.32:540.56:057:16Waxing Gibbous30Sat
31Sun10:012.510:162.83:400.33:520.56:067:15Waxing Gibbous31Sun
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 12:18 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 67% 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 First Quarter (67% 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