Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 5:39 am (0.4 ft)
Next high tide : in 42m at 11:09 pm (2.8 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Apr 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:572.91:163.17:04-0.17:26-0.16:227:06New Moon1Sat
2Sun1:373.12:013.17:49-0.38:09-0.26:217:07New Moon2Sun
3Mon2:193.22:483.18:36-0.48:53-0.26:197:08New Moon3Mon
4Tue3:043.33:363.19:23-0.49:39-0.16:177:09Waxing Crescent4Tue
5Wed3:503.34:262.910:13-0.410:270.06:167:10Waxing Crescent5Wed
6Thu4:393.35:202.811:06-0.311:200.16:147:11Waxing Crescent6Thu
7Fri5:333.16:192.712:03-0.16:127:12First Quarter7Fri
8Sat6:343.07:252.612:180.21:060.06:117:13First Quarter8Sat
9Sun7:412.98:352.51:220.42:120.16:097:14First Quarter9Sun
10Mon8:512.89:452.52:290.43:190.26:077:16Waxing Gibbous10Mon
11Tue10:032.810:502.63:380.44:240.26:067:17Waxing Gibbous11Tue
12Wed11:082.811:452.74:440.35:230.16:047:18Waxing Gibbous12Wed
13Thu12:042.85:430.26:130.16:037:19Waxing Gibbous13Thu
14Fri12:312.812:522.96:340.16:560.16:017:20Full Moon14Fri
15Sat1:122.91:352.97:180.07:350.15:597:21Full Moon15Sat
16Sun1:492.92:162.87:590.08:120.25:587:22Full Moon16Sun
17Mon2:253.02:552.88:390.08:500.25:567:23Full Moon17Mon
18Tue3:012.93:342.79:180.09:270.35:557:24Waning Gibbous18Tue
19Wed3:372.94:132.69:570.110:060.45:537:25Waning Gibbous19Wed
20Thu4:162.84:542.510:370.210:460.55:527:26Waning Gibbous20Thu
21Fri4:572.85:382.411:210.311:300.65:507:28Waning Gibbous21Fri
22Sat5:412.76:272.312:080.45:497:29Third Quarter22Sat
23Sun6:312.67:192.312:190.71:000.45:477:30Third Quarter23Sun
24Mon7:262.68:132.31:120.71:540.45:467:31Third Quarter24Mon
25Tue8:222.69:072.42:080.72:470.45:447:32Third Quarter25Tue
26Wed9:192.69:592.53:050.63:400.35:437:33Waning Crescent26Wed
27Thu10:152.710:482.74:010.54:310.25:427:34Waning Crescent27Thu
28Fri11:082.811:342.94:550.35:200.15:407:35Waning Crescent28Fri
29Sat11:592.95:470.06:070.05:397:36Waning Crescent29Sat
30Sun12:193.112:473.06:36-0.26:53-0.15:387:37New Moon30Sun
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 2:24 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 86% 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 (86% 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