Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 5:20 am (0.3 ft)
Next high tide : in 5h 20m at 10:54 pm (2.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:373.11:063.06:480.07:080.06:376:23Full Moon1Sat
2Sun1:253.11:493.07:330.07:540.06:386:21Full Moon2Sun
3Mon2:103.02:293.08:140.08:370.06:396:19Full Moon3Mon
4Tue2:532.93:083.08:540.19:200.06:406:18Waning Gibbous4Tue
5Wed3:352.83:472.99:340.210:020.16:416:16Waning Gibbous5Wed
6Thu4:172.74:272.910:150.310:450.26:436:14Waning Gibbous6Thu
7Fri5:002.65:092.810:560.511:310.36:446:12Waning Gibbous7Fri
8Sat5:472.55:552.711:420.66:456:11Third Quarter8Sat
9Sun6:382.46:462.612:200.412:320.76:466:09Third Quarter9Sun
10Mon7:322.37:412.61:130.51:250.76:476:08Third Quarter10Mon
11Tue8:282.38:372.62:080.52:210.76:486:06Third Quarter11Tue
12Wed9:242.49:332.63:030.53:160.76:496:04Waning Crescent12Wed
13Thu10:162.510:272.73:560.44:110.56:506:03Waning Crescent13Thu
14Fri11:042.611:182.84:460.35:030.46:516:01Waning Crescent14Fri
15Sat11:482.85:330.25:510.26:526:00Waning Crescent15Sat
16Sun12:043.012:293.06:160.06:380.06:545:58New Moon16Sun
17Mon12:493.11:103.16:59-0.17:23-0.26:555:56New Moon17Mon
18Tue1:353.11:533.37:42-0.18:10-0.36:565:55New Moon18Tue
19Wed2:213.12:373.48:27-0.28:58-0.46:575:53Waxing Crescent19Wed
20Thu3:103.13:243.49:13-0.19:47-0.46:585:52Waxing Crescent20Thu
21Fri4:013.04:143.410:020.010:39-0.36:595:50Waxing Crescent21Fri
22Sat4:542.95:073.310:540.111:35-0.27:005:49Waxing Crescent22Sat
23Sun5:522.86:063.111:510.27:025:47First Quarter23Sun
24Mon6:562.77:113.012:36-0.112:540.37:035:46First Quarter24Mon
25Tue8:032.78:192.91:390.01:590.47:045:45First Quarter25Tue
26Wed9:102.79:272.92:440.13:060.47:055:43Waxing Gibbous26Wed
27Thu10:142.710:332.93:470.14:110.37:065:42Waxing Gibbous27Thu
28Fri11:122.811:322.94:470.15:120.27:085:40Waxing Gibbous28Fri
29Sat12:012.95:390.16:050.17:095:39Waxing Gibbous29Sat
30Sun12:222.912:443.06:260.16:520.07:105:38Full Moon30Sun
31Mon1:082.91:233.07:070.17:350.07:115:37Full Moon31Mon
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 2:07 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 84% 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 Waxing Gibbous (84% 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