Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 12:06 am (0.2 ft)
Next high tide : in 5h 02m at 5:49 pm (2.9 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 - Oct 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:103.11:333.17:22-0.17:43-0.26:386:21New Moon1Wed
2Thu1:553.22:163.28:05-0.28:30-0.36:396:19New Moon2Thu
3Fri2:413.23:013.38:50-0.29:18-0.36:416:17Waxing Crescent3Fri
4Sat3:303.13:483.39:36-0.210:07-0.36:426:16Waxing Crescent4Sat
5Sun4:203.14:373.310:25-0.111:00-0.36:436:14Waxing Crescent5Sun
6Mon5:143.05:313.211:180.011:56-0.26:446:12First Quarter6Mon
7Tue6:122.96:303.112:150.16:456:11First Quarter7Tue
8Wed7:152.87:343.012:56-0.11:170.26:466:09First Quarter8Wed
9Thu8:222.78:403.01:590.02:210.36:476:07First Quarter9Thu
10Fri9:282.79:472.93:030.13:250.36:486:06Waxing Gibbous10Fri
11Sat10:322.810:513.04:060.14:290.26:496:04Waxing Gibbous11Sat
12Sun11:292.911:483.05:050.05:280.16:506:02Waxing Gibbous12Sun
13Mon12:183.05:570.06:200.16:516:01Full Moon13Mon
14Tue12:383.01:023.06:440.07:070.06:535:59Full Moon14Tue
15Wed1:243.01:433.07:260.07:510.06:545:58Full Moon15Wed
16Thu2:072.92:213.08:070.18:330.06:555:56Full Moon16Thu
17Fri2:482.92:593.08:460.29:140.06:565:55Waning Gibbous17Fri
18Sat3:292.83:382.99:260.39:550.16:575:53Waning Gibbous18Sat
19Sun4:102.74:182.910:060.410:370.26:585:52Waning Gibbous19Sun
20Mon4:522.65:002.810:480.411:210.36:595:50Waning Gibbous20Mon
21Tue5:382.55:452.711:330.57:015:49Third Quarter21Tue
22Wed6:272.56:352.712:090.312:230.67:025:47Third Quarter22Wed
23Thu7:192.47:292.61:000.41:160.67:035:46Third Quarter23Thu
24Fri8:132.48:242.61:530.42:100.67:045:44Third Quarter24Fri
25Sat9:062.59:182.72:460.43:050.67:055:43Waning Crescent25Sat
26Sun9:572.610:132.83:380.33:590.47:065:42Waning Crescent26Sun
27Mon10:462.811:052.94:280.24:520.37:085:40Waning Crescent27Mon
28Tue11:322.911:543.05:170.15:420.07:095:39Waning Crescent28Tue
29Wed12:173.16:040.06:31-0.27:105:38New Moon29Wed
30Thu12:423.11:013.36:50-0.17:19-0.37:115:36New Moon30Thu
31Fri1:293.11:473.47:36-0.28:07-0.47:125:35New Moon31Fri
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 8:57 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 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