Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide (tomorrow) : in 5h 23m at 3:00 am (0.1 ft)
Next high tide (tomorrow) : 9:11 am (2.5 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Apr 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:262.81:442.87:310.17:490.16:227:06New Moon1Tue
2Wed2:002.92:232.98:100.08:260.16:207:07New Moon2Wed
3Thu2:363.03:022.88:50-0.19:040.16:187:08New Moon3Thu
4Fri3:133.03:432.89:32-0.19:440.16:177:09Waxing Crescent4Fri
5Sat3:533.04:272.710:16-0.110:270.26:157:10Waxing Crescent5Sat
6Sun4:363.05:152.611:03-0.111:140.36:137:12Waxing Crescent6Sun
7Mon5:253.06:092.511:570.06:127:13First Quarter7Mon
8Tue6:212.97:112.512:090.412:560.16:107:14First Quarter8Tue
9Wed7:252.98:172.51:110.42:000.16:087:15First Quarter9Wed
10Thu8:332.89:242.52:160.43:040.16:077:16Waxing Gibbous10Thu
11Fri9:422.910:292.73:230.34:080.16:057:17Waxing Gibbous11Fri
12Sat10:492.911:282.94:290.25:080.06:047:18Waxing Gibbous12Sat
13Sun11:503.05:310.06:01-0.16:027:19Waxing Gibbous13Sun
14Mon12:193.012:443.16:26-0.16:50-0.16:007:20Full Moon14Mon
15Tue1:063.11:343.17:17-0.27:36-0.15:597:21Full Moon15Tue
16Wed1:503.22:223.08:04-0.38:200.05:577:23Full Moon16Wed
17Thu2:343.23:082.98:51-0.39:040.15:567:24Waning Gibbous17Thu
18Fri3:163.13:532.89:36-0.29:470.25:547:25Waning Gibbous18Fri
19Sat3:593.04:382.710:21-0.110:310.35:537:26Waning Gibbous19Sat
20Sun4:432.95:252.511:070.111:170.55:517:27Waning Gibbous20Sun
21Mon5:292.86:152.411:560.25:507:28Third Quarter21Mon
22Tue6:202.77:092.312:070.612:490.45:487:29Third Quarter22Tue
23Wed7:162.68:062.31:010.71:440.55:477:30Third Quarter23Wed
24Thu8:142.59:012.31:580.72:390.55:457:31Third Quarter24Thu
25Fri9:122.59:552.42:550.73:320.55:447:32Waning Crescent25Fri
26Sat10:082.610:442.53:510.64:230.45:427:33Waning Crescent26Sat
27Sun11:002.611:272.74:440.55:090.45:417:35Waning Crescent27Sun
28Mon11:472.75:330.35:510.35:407:36Waning Crescent28Mon
29Tue12:072.812:302.76:170.26:320.25:387:37New Moon29Tue
30Wed12:442.91:122.86:590.07:120.25:377:38New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About South Yarmouth, MA Tides

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

Slack tide in South Yarmouth, MA is approximately 6:05 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 32% 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 (32% 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