Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 3:00 am (0.1 ft)
Next high tide : in 5h 51m at 8:27 pm (3.0 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 - Sep 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:032.59:213.02:500.13:030.46:077:13Waning Crescent1Sun
2Mon10:102.610:273.13:550.14:070.36:087:11Waning Crescent2Mon
3Tue11:152.711:303.14:580.05:110.26:097:09Waning Crescent3Tue
4Wed12:132.85:57-0.16:100.16:107:08New Moon4Wed
5Thu12:293.21:062.96:50-0.27:050.06:117:06New Moon5Thu
6Fri1:233.21:563.07:40-0.27:57-0.16:127:04New Moon6Fri
7Sat2:143.22:433.18:27-0.28:47-0.16:147:02New Moon7Sat
8Sun3:043.13:283.19:12-0.19:35-0.16:157:01Waxing Crescent8Sun
9Mon3:523.04:123.09:560.010:220.06:166:59Waxing Crescent9Mon
10Tue4:392.94:553.010:400.211:100.16:176:57Waxing Crescent10Tue
11Wed5:272.75:412.911:260.36:186:56First Quarter11Wed
12Thu6:182.56:302.712:010.212:140.56:196:54First Quarter12Thu
13Fri7:122.47:232.712:540.41:060.66:206:52First Quarter13Fri
14Sat8:102.38:202.61:510.52:010.76:216:50First Quarter14Sat
15Sun9:092.39:182.62:480.52:570.76:226:49Waxing Gibbous15Sun
16Mon10:072.310:152.63:460.53:540.76:236:47Waxing Gibbous16Mon
17Tue11:002.411:082.74:410.44:480.66:246:45Waxing Gibbous17Tue
18Wed11:472.511:552.85:290.35:370.56:256:43Waxing Gibbous18Wed
19Thu12:272.66:110.26:220.46:266:42Waxing Gibbous19Thu
20Fri12:372.91:052.86:500.27:030.26:276:40Full Moon20Fri
21Sat1:173.01:412.97:280.17:450.16:286:38Full Moon21Sat
22Sun1:573.02:173.08:060.08:260.06:296:36Full Moon22Sun
23Mon2:373.02:553.18:440.09:09-0.16:306:35Waning Gibbous23Mon
24Tue3:203.03:353.19:250.09:53-0.16:316:33Waning Gibbous24Tue
25Wed4:042.94:183.110:080.110:41-0.16:326:31Waning Gibbous25Wed
26Thu4:522.85:053.110:540.211:320.06:336:30Waning Gibbous26Thu
27Fri5:442.75:583.111:450.36:346:28Third Quarter27Fri
28Sat6:432.66:583.012:300.012:430.46:356:26Third Quarter28Sat
29Sun7:482.68:033.01:320.11:470.46:366:24Third Quarter29Sun
30Mon8:552.69:112.92:360.12:520.46:376:23Waning Crescent30Mon
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 11:43 pm — 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