Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 2:51 am (0.4 ft)
Next high tide : in 5h 08m at 8:29 pm (2.8 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Mar 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:332.97:142.612:120.112:540.06:135:31Third Quarter1Wed
2Thu7:362.88:212.51:130.21:580.16:125:32Third Quarter2Thu
3Fri8:422.89:282.52:160.33:040.16:105:34Waning Crescent3Fri
4Sat9:462.810:292.53:190.34:070.16:095:35Waning Crescent4Sat
5Sun10:422.811:192.64:180.35:000.16:075:36Waning Crescent5Sun
6Mon11:302.85:100.25:450.16:055:37Waning Crescent6Mon
7Tue12:022.712:132.95:540.26:240.06:045:38New Moon7Tue
8Wed12:402.712:522.96:350.17:000.06:025:39New Moon8Wed
9Thu1:162.71:292.97:140.17:360.06:005:41New Moon9Thu
10Fri1:512.82:062.87:520.18:120.15:595:42New Moon10Fri
11Sat2:252.82:432.88:300.18:480.15:575:43Waxing Crescent11Sat
12Sun4:012.84:212.710:090.110:250.26:556:44Waxing Crescent12Sun
13Mon4:372.85:012.610:490.111:050.26:546:45Waxing Crescent13Mon
14Tue5:162.75:442.511:320.211:470.36:526:46Waxing Crescent14Tue
15Wed5:582.76:312.512:190.36:506:47First Quarter15Wed
16Thu6:462.77:232.412:340.41:110.36:496:48First Quarter16Thu
17Fri7:392.78:202.41:270.42:070.36:476:50First Quarter17Fri
18Sat8:362.79:192.52:230.43:050.26:456:51First Quarter18Sat
19Sun9:362.810:182.63:220.34:040.16:446:52Waxing Gibbous19Sun
20Mon10:372.911:152.84:220.25:01-0.16:426:53Waxing Gibbous20Mon
21Tue11:343.15:200.05:55-0.26:406:54Waxing Gibbous21Tue
22Wed12:083.012:293.36:15-0.26:46-0.46:386:55Full Moon22Wed
23Thu12:593.21:223.47:08-0.47:36-0.56:376:56Full Moon23Thu
24Fri1:493.32:143.48:00-0.58:25-0.56:356:57Full Moon24Fri
25Sat2:383.43:073.48:51-0.69:15-0.56:336:58Waning Gibbous25Sat
26Sun3:293.43:593.39:43-0.610:05-0.46:327:00Waning Gibbous26Sun
27Mon4:193.44:533.110:36-0.510:56-0.26:307:01Waning Gibbous27Mon
28Tue5:123.25:492.911:30-0.311:500.06:287:02Third Quarter28Tue
29Wed6:073.16:492.712:28-0.16:277:03Third Quarter29Wed
30Thu7:072.97:532.612:480.21:300.16:257:04Third Quarter30Thu
31Fri8:112.88:582.51:490.32:330.26:237:05Third Quarter31Fri
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 11:40 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 transitional phase. Tonight's moon is 62% 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 First Quarter (62% 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