Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 10:13 am (0.1 ft)
Next high tide (tomorrow) : in 5h 25m at 3:59 am (2.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Jan 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:442.86:062.711:590.27:074:21First Quarter1Thu
2Fri6:372.97:042.712:210.112:570.17:074:21First Quarter2Fri
3Sat7:332.98:052.71:160.11:570.07:074:22Waxing Gibbous3Sat
4Sun8:313.09:092.72:140.12:58-0.17:074:23Waxing Gibbous4Sun
5Mon9:313.110:112.83:140.03:59-0.27:074:24Waxing Gibbous5Mon
6Tue10:303.311:112.84:13-0.14:58-0.37:074:25Waxing Gibbous6Tue
7Wed11:273.45:10-0.15:53-0.57:074:26Full Moon7Wed
8Thu12:072.912:213.46:05-0.26:45-0.57:074:27Full Moon8Thu
9Fri1:013.01:153.46:59-0.37:37-0.57:064:28Full Moon9Fri
10Sat1:543.02:083.37:51-0.28:26-0.57:064:29Waning Gibbous10Sat
11Sun2:453.03:003.28:43-0.29:15-0.47:064:30Waning Gibbous11Sun
12Mon3:343.03:503.19:34-0.110:04-0.27:064:31Waning Gibbous12Mon
13Tue4:242.94:422.910:260.010:530.07:054:32Third Quarter13Tue
14Wed5:142.85:362.711:210.111:440.17:054:34Third Quarter14Wed
15Thu6:062.76:322.512:170.27:044:35Third Quarter15Thu
16Fri6:592.77:292.412:360.31:140.37:044:36Third Quarter16Fri
17Sat7:532.68:272.31:290.42:120.47:034:37Third Quarter17Sat
18Sun8:482.69:252.32:230.43:090.37:034:38Waning Crescent18Sun
19Mon9:412.710:192.43:160.44:030.37:024:39Waning Crescent19Mon
20Tue10:302.711:072.44:080.44:510.27:024:41Waning Crescent20Tue
21Wed11:152.811:492.54:550.35:340.17:014:42Waning Crescent21Wed
22Thu11:562.95:380.36:140.07:004:43New Moon22Thu
23Fri12:292.612:352.96:200.26:52-0.17:004:44New Moon23Fri
24Sat1:072.61:143.07:010.17:30-0.16:594:46New Moon24Sat
25Sun1:452.71:533.07:410.18:09-0.26:584:47New Moon25Sun
26Mon2:232.82:333.08:230.08:49-0.26:574:48Waxing Crescent26Mon
27Tue3:022.83:153.09:060.09:30-0.26:564:49Waxing Crescent27Tue
28Wed3:422.94:002.99:510.010:14-0.16:564:51Waxing Crescent28Wed
29Thu4:262.94:492.810:410.011:020.06:554:52First Quarter29Thu
30Fri5:152.95:432.711:350.011:550.06:544:53First Quarter30Fri
31Sat6:092.96:422.612:340.06:534:54First Quarter31Sat
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 7:06 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 91% 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 (91% 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