Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 2h 08m at 4:32 pm (0.2 ft)
Next high tide : 10:49 pm (3.2 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Mar 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:322.71:442.87:310.17:520.16:145:31New Moon1Thu
2Fri2:052.72:202.88:080.18:260.16:135:32Waxing Crescent2Fri
3Sat2:382.82:572.78:460.19:020.16:115:33Waxing Crescent3Sat
4Sun3:122.83:362.69:260.19:390.26:105:34Waxing Crescent4Sun
5Mon3:492.84:182.610:080.110:200.36:085:35Waxing Crescent5Mon
6Tue4:312.85:052.510:560.211:070.46:065:36First Quarter6Tue
7Wed5:192.86:002.411:500.26:055:38First Quarter7Wed
8Thu6:152.87:012.312:010.412:500.26:035:39First Quarter8Thu
9Fri7:182.88:072.31:020.41:540.26:015:40First Quarter9Fri
10Sat8:242.89:142.52:070.42:590.16:005:41Waxing Gibbous10Sat
11Sun10:312.911:172.64:130.35:010.06:586:42Waxing Gibbous11Sun
12Mon11:343.15:160.15:57-0.26:566:43Waxing Gibbous12Mon
13Tue12:122.812:313.26:14-0.16:49-0.36:556:44Full Moon13Tue
14Wed1:043.01:253.37:08-0.37:38-0.46:536:46Full Moon14Wed
15Thu1:523.22:173.38:00-0.48:25-0.46:516:47Full Moon15Thu
16Fri2:403.33:073.28:51-0.59:12-0.36:506:48Waning Gibbous16Fri
17Sat3:263.33:573.19:40-0.49:58-0.26:486:49Waning Gibbous17Sat
18Sun4:133.24:462.910:30-0.310:450.06:466:50Waning Gibbous18Sun
19Mon5:003.15:382.711:20-0.111:340.26:456:51Waning Gibbous19Mon
20Tue5:502.96:332.512:140.16:436:52Third Quarter20Tue
21Wed6:452.77:322.412:270.41:130.26:416:53Third Quarter21Wed
22Thu7:442.68:352.31:250.52:140.46:396:55Third Quarter22Thu
23Fri8:472.59:382.22:250.63:160.46:386:56Third Quarter23Fri
24Sat9:502.510:372.33:260.64:170.46:366:57Waning Crescent24Sat
25Sun10:492.611:282.44:260.65:100.46:346:58Waning Crescent25Sun
26Mon11:392.65:200.55:540.36:336:59Waning Crescent26Mon
27Tue12:102.512:222.76:050.46:320.26:317:00Waning Crescent27Tue
28Wed12:472.61:022.86:460.27:070.26:297:01New Moon28Wed
29Thu1:212.71:392.87:250.17:420.26:287:02New Moon29Thu
30Fri1:552.82:162.88:030.18:180.16:267:03New Moon30Fri
31Sat2:292.92:542.88:410.08:540.26:247:04New Moon31Sat
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 7:40 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 spring phase. Tonight's moon is 11% 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 Crescent (11% 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