Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 5h 14m at 12:06 am (0.2 ft)
Next high tide (tomorrow) : 6:14 am (2.7 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Apr 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:182.85:532.611:370.111:510.46:217:06Waxing Crescent1Wed
2Thu6:042.76:442.412:270.36:207:07First Quarter2Thu
3Fri6:552.67:382.412:410.51:200.46:187:09First Quarter3Fri
4Sat7:502.68:352.31:350.62:150.46:167:10First Quarter4Sat
5Sun8:482.59:322.42:300.63:110.46:157:11First Quarter5Sun
6Mon9:452.610:262.43:260.64:050.46:137:12Waxing Gibbous6Mon
7Tue10:402.611:152.54:210.54:560.36:117:13Waxing Gibbous7Tue
8Wed11:302.711:592.75:130.45:420.26:107:14Waxing Gibbous8Wed
9Thu12:152.86:000.26:250.16:087:15Waxing Gibbous9Thu
10Fri12:392.812:582.96:440.17:060.06:067:16Full Moon10Fri
11Sat1:183.01:403.07:28-0.17:47-0.16:057:17Full Moon11Sat
12Sun1:583.12:243.08:11-0.28:30-0.16:037:18Full Moon12Sun
13Mon2:393.23:093.08:56-0.39:13-0.16:027:19Waning Gibbous13Mon
14Tue3:233.33:563.09:43-0.39:59-0.16:007:21Waning Gibbous14Tue
15Wed4:093.34:462.910:32-0.310:490.05:587:22Waning Gibbous15Wed
16Thu4:593.25:402.811:25-0.211:420.15:577:23Waning Gibbous16Thu
17Fri5:543.16:392.712:22-0.15:557:24Third Quarter17Fri
18Sat6:553.07:442.712:420.21:240.05:547:25Third Quarter18Sat
19Sun8:012.98:502.71:450.32:270.05:527:26Third Quarter19Sun
20Mon9:092.99:562.72:500.33:310.15:517:27Waning Crescent20Mon
21Tue10:172.910:582.83:560.24:330.05:497:28Waning Crescent21Tue
22Wed11:202.911:522.94:590.15:300.05:487:29Waning Crescent22Wed
23Thu12:153.05:560.06:210.05:467:30Waning Crescent23Thu
24Fri12:403.01:053.06:47-0.17:060.05:457:32New Moon24Fri
25Sat1:243.11:503.07:34-0.17:490.05:447:33New Moon25Sat
26Sun2:053.12:342.98:17-0.18:310.15:427:34New Moon26Sun
27Mon2:443.13:162.89:00-0.19:110.25:417:35Waxing Crescent27Mon
28Tue3:243.03:582.89:410.09:520.35:397:36Waxing Crescent28Tue
29Wed4:042.94:402.710:230.010:340.45:387:37Waxing Crescent29Wed
30Thu4:452.95:242.611:070.211:180.55:377:38Waxing Crescent30Thu
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 3:10 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 66% 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 Third Quarter (66% 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