Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 4h 33m at 10:31 pm (0.2 ft)
Next high tide (tomorrow) : 4:41 am (2.9 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jun 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:162.67:532.61:070.51:320.45:088:09Third Quarter1Wed
2Thu8:082.68:412.71:590.52:210.45:078:10Third Quarter2Thu
3Fri9:012.69:292.72:510.53:100.45:078:10Waning Crescent3Fri
4Sat9:552.610:182.93:440.44:000.35:078:11Waning Crescent4Sat
5Sun10:482.711:073.04:370.24:510.35:068:12Waning Crescent5Sun
6Mon11:392.711:543.25:280.15:410.25:068:12Waning Crescent6Mon
7Tue12:292.86:18-0.16:300.15:068:13New Moon7Tue
8Wed12:423.31:182.97:07-0.27:190.05:068:13New Moon8Wed
9Thu1:303.42:093.07:57-0.48:09-0.15:068:14New Moon9Thu
10Fri2:213.43:013.08:47-0.49:01-0.15:068:15Waxing Crescent10Fri
11Sat3:133.53:543.19:38-0.49:54-0.15:058:15Waxing Crescent11Sat
12Sun4:073.44:483.110:30-0.410:49-0.15:058:16Waxing Crescent12Sun
13Mon5:033.35:443.111:24-0.311:460.05:058:16First Quarter13Mon
14Tue6:013.26:423.112:19-0.25:058:16First Quarter14Tue
15Wed7:023.07:423.012:470.11:17-0.15:058:17First Quarter15Wed
16Thu8:062.98:413.01:490.12:150.05:058:17First Quarter16Thu
17Fri9:092.89:393.02:520.13:130.15:068:18Waxing Gibbous17Fri
18Sat10:132.710:373.03:540.14:110.25:068:18Waxing Gibbous18Sat
19Sun11:132.711:303.04:540.15:060.35:068:18Waxing Gibbous19Sun
20Mon12:072.75:490.15:570.35:068:18Waxing Gibbous20Mon
21Tue12:183.012:552.76:380.06:440.35:068:18Full Moon21Tue
22Wed1:013.01:392.77:220.07:270.35:078:19Full Moon22Wed
23Thu1:433.02:212.78:040.08:090.35:078:19Full Moon23Thu
24Fri2:243.03:012.78:440.08:510.35:078:19Full Moon24Fri
25Sat3:043.03:412.79:230.19:320.45:088:19Waning Gibbous25Sat
26Sun3:442.94:202.710:020.110:140.45:088:19Waning Gibbous26Sun
27Mon4:252.95:002.710:420.110:570.45:088:19Waning Gibbous27Mon
28Tue5:072.85:412.711:230.211:420.45:098:19Waning Gibbous28Tue
29Wed5:512.76:242.712:060.35:098:19Third Quarter29Wed
30Thu6:382.77:092.712:300.412:510.35:108:19Third Quarter30Thu
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 1:36 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 spring phase. Tonight's moon is 84% 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 near their weekly maximum.

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 Waning Gibbous (84% illuminated). This places South Yarmouth, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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