Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 3:21 am (0.1 ft)
Next high tide : in 3h 23m at 8:52 pm (3.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Mar 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:373.15:220.15:59-0.36:135:31New Moon1Mon
2Tue12:122.812:273.36:13-0.16:46-0.46:125:33New Moon2Tue
3Wed12:583.01:173.37:03-0.37:32-0.56:105:34New Moon3Wed
4Thu1:453.22:073.37:53-0.48:19-0.46:085:35Waxing Crescent4Thu
5Fri2:323.32:583.28:44-0.59:06-0.46:075:36Waxing Crescent5Fri
6Sat3:203.33:503.19:35-0.49:55-0.26:055:37Waxing Crescent6Sat
7Sun4:103.24:452.910:29-0.310:470.06:035:38First Quarter7Sun
8Mon5:043.15:442.711:28-0.111:440.26:025:40First Quarter8Mon
9Tue6:032.96:492.512:300.06:005:41First Quarter9Tue
10Wed7:072.87:582.412:450.31:360.15:595:42First Quarter10Wed
11Thu8:152.79:092.41:500.42:450.25:575:43Waxing Gibbous11Thu
12Fri9:252.710:142.42:560.53:530.25:555:44Waxing Gibbous12Fri
13Sat10:272.711:082.54:010.44:500.25:535:45Waxing Gibbous13Sat
14Sun12:192.85:570.46:370.16:526:46Waxing Gibbous14Sun
15Mon12:522.61:032.86:440.37:160.16:506:48Full Moon15Mon
16Tue1:302.71:432.87:250.27:510.16:486:49Full Moon16Tue
17Wed2:052.72:202.88:040.18:260.16:476:50Full Moon17Wed
18Thu2:382.82:562.88:410.19:000.16:456:51Full Moon18Thu
19Fri3:122.83:332.79:190.19:340.26:436:52Waning Gibbous19Fri
20Sat3:452.84:102.69:560.110:100.36:426:53Waning Gibbous20Sat
21Sun4:202.84:482.610:350.210:470.46:406:54Waning Gibbous21Sun
22Mon4:572.75:302.411:170.211:280.56:386:55Waning Gibbous22Mon
23Tue5:382.76:162.312:020.36:376:56Third Quarter23Tue
24Wed6:252.67:082.312:130.512:540.46:356:58Third Quarter24Wed
25Thu7:182.68:052.21:050.61:510.46:336:59Third Quarter25Thu
26Fri8:172.69:062.32:030.62:500.36:317:00Third Quarter26Fri
27Sat9:182.710:062.43:030.53:490.26:307:01Waning Crescent27Sat
28Sun10:202.811:032.64:040.44:470.16:287:02Waning Crescent28Sun
29Mon11:193.011:552.85:040.25:40-0.16:267:03Waning Crescent29Mon
30Tue12:133.15:590.06:30-0.26:257:04New Moon30Tue
31Wed12:433.11:053.36:52-0.37:18-0.36:237:05New Moon31Wed
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 12:06 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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