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 4h 24m 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 - May 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:292.86:112.511:530.35:357:39Waxing Crescent1Fri
2Sat6:182.77:022.412:060.612:430.35:347:40First Quarter2Sat
3Sun7:102.67:552.412:580.61:340.45:337:41First Quarter3Sun
4Mon8:052.68:472.51:520.62:260.45:327:42First Quarter4Mon
5Tue9:002.69:392.52:460.63:180.45:307:43First Quarter5Tue
6Wed9:542.610:282.73:400.54:090.35:297:45Waxing Gibbous6Wed
7Thu10:472.711:142.84:330.44:580.25:287:46Waxing Gibbous7Thu
8Fri11:372.811:583.05:240.25:450.15:277:47Waxing Gibbous8Fri
9Sat12:242.96:120.06:300.05:267:48Full Moon9Sat
10Sun12:413.21:113.06:59-0.27:150.05:257:49Full Moon10Sun
11Mon1:253.31:583.07:46-0.38:01-0.15:247:50Full Moon11Mon
12Tue2:113.42:483.08:35-0.48:49-0.15:237:51Full Moon12Tue
13Wed2:593.43:393.09:25-0.49:39-0.15:227:52Waning Gibbous13Wed
14Thu3:503.44:323.010:16-0.410:310.05:217:53Waning Gibbous14Thu
15Fri4:443.35:282.911:10-0.311:270.15:207:54Waning Gibbous15Fri
16Sat5:413.26:292.812:07-0.25:197:55Third Quarter16Sat
17Sun6:433.17:322.812:280.21:08-0.15:187:56Third Quarter17Sun
18Mon7:493.08:362.81:320.32:090.05:177:57Third Quarter18Mon
19Tue8:552.99:382.92:370.33:100.15:167:58Waning Crescent19Tue
20Wed10:012.810:372.93:410.24:100.15:157:59Waning Crescent20Wed
21Thu11:032.811:303.04:440.25:060.25:148:00Waning Crescent21Thu
22Fri11:582.85:400.15:560.25:148:01Waning Crescent22Fri
23Sat12:173.012:472.86:300.06:410.25:138:01New Moon23Sat
24Sun12:593.01:312.87:150.07:230.25:128:02New Moon24Sun
25Mon1:393.02:132.87:570.08:040.35:128:03New Moon25Mon
26Tue2:183.02:542.78:380.08:440.35:118:04New Moon26Tue
27Wed2:573.03:352.79:180.09:250.45:108:05Waxing Crescent27Wed
28Thu3:362.94:162.69:580.110:060.45:108:06Waxing Crescent28Thu
29Fri4:172.94:572.610:390.210:490.55:098:07Waxing Crescent29Fri
30Sat5:002.85:412.511:220.211:340.65:098:07Waxing Crescent30Sat
31Sun5:452.76:272.512:080.35:088:08First Quarter31Sun
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 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