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 4h 48m 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 - Apr 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:272.75:070.55:420.36:237:05Waning Crescent1Mon
2Tue12:002.612:132.75:550.46:230.26:217:06Waning Crescent2Tue
3Wed12:392.712:532.86:370.27:000.26:207:07New Moon3Wed
4Thu1:162.71:322.87:170.17:370.16:187:08New Moon4Thu
5Fri1:512.82:092.87:550.18:130.16:167:10New Moon5Fri
6Sat2:252.92:472.88:340.08:490.16:157:11New Moon6Sat
7Sun3:002.93:252.89:130.09:270.16:137:12Waxing Crescent7Sun
8Mon3:372.94:052.89:530.010:070.26:117:13Waxing Crescent8Mon
9Tue4:153.04:482.710:360.010:490.26:107:14Waxing Crescent9Tue
10Wed4:583.05:352.611:230.011:360.36:087:15Waxing Crescent10Wed
11Thu5:462.96:272.612:150.16:077:16First Quarter11Thu
12Fri6:402.97:262.612:300.31:120.16:057:17First Quarter12Fri
13Sat7:412.98:292.61:300.42:130.16:037:18First Quarter13Sat
14Sun8:462.99:322.72:320.33:150.16:027:19Waxing Gibbous14Sun
15Mon9:523.010:352.83:370.24:160.06:007:20Waxing Gibbous15Mon
16Tue10:573.011:333.04:400.15:15-0.15:597:22Waxing Gibbous16Tue
17Wed11:563.15:40-0.16:09-0.25:577:23Waxing Gibbous17Wed
18Thu12:263.212:513.26:35-0.37:00-0.35:557:24Full Moon18Thu
19Fri1:153.31:433.27:27-0.47:49-0.35:547:25Full Moon19Fri
20Sat2:033.32:343.28:17-0.48:36-0.25:527:26Full Moon20Sat
21Sun2:503.33:243.19:06-0.49:23-0.15:517:27Waning Gibbous21Sun
22Mon3:373.34:133.09:55-0.310:100.15:497:28Waning Gibbous22Mon
23Tue4:233.15:022.810:43-0.210:580.25:487:29Waning Gibbous23Tue
24Wed5:113.05:542.711:330.011:480.45:467:30Waning Gibbous24Wed
25Thu6:022.86:482.512:260.25:457:31Third Quarter25Thu
26Fri6:572.77:442.512:420.51:220.35:447:32Third Quarter26Fri
27Sat7:542.68:412.41:390.62:180.45:427:34Third Quarter27Sat
28Sun8:532.69:372.52:360.63:130.45:417:35Third Quarter28Sun
29Mon9:512.610:292.53:330.64:060.45:397:36Waning Crescent29Mon
30Tue10:452.611:162.64:280.54:550.45:387:37Waning Crescent30Tue
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