Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 7:31 pm (0.5 ft)
Next high tide : in 3h 08m at 1:48 pm (2.5 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:09 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Oct 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:332.39:432.63:120.53:230.76:386:21Waxing Gibbous1Sat
2Sun10:272.410:372.74:060.54:180.66:396:20Waxing Gibbous2Sun
3Mon11:142.511:252.84:540.45:080.56:406:18Waxing Gibbous3Mon
4Tue11:552.75:380.35:540.36:416:16Waxing Gibbous4Tue
5Wed12:092.812:322.86:180.26:370.26:426:15Full Moon5Wed
6Thu12:492.91:083.06:560.17:180.06:436:13Full Moon6Thu
7Fri1:302.91:453.17:340.18:00-0.16:446:11Full Moon7Fri
8Sat2:112.92:243.28:140.18:44-0.16:466:10Full Moon8Sat
9Sun2:542.93:053.28:560.19:29-0.26:476:08Waning Gibbous9Sun
10Mon3:402.93:503.29:400.110:17-0.16:486:06Waning Gibbous10Mon
11Tue4:282.84:393.210:270.211:08-0.16:496:05Waning Gibbous11Tue
12Wed5:212.75:333.111:200.36:506:03Third Quarter12Wed
13Thu6:202.66:343.012:050.012:190.46:516:01Third Quarter13Thu
14Fri7:262.67:412.91:080.11:230.46:526:00Third Quarter14Fri
15Sat8:332.68:492.92:120.12:300.46:535:58Waning Crescent15Sat
16Sun9:382.79:582.93:150.13:370.36:545:57Waning Crescent16Sun
17Mon10:402.811:012.94:170.14:410.26:565:55Waning Crescent17Mon
18Tue11:342.911:583.05:140.15:400.16:575:54Waning Crescent18Tue
19Wed12:223.16:040.06:320.06:585:52New Moon19Wed
20Thu12:493.01:063.16:500.07:19-0.16:595:51New Moon20Thu
21Fri1:362.91:483.17:340.18:05-0.17:005:49New Moon21Fri
22Sat2:212.92:293.18:160.28:48-0.17:015:48New Moon22Sat
23Sun3:052.83:103.08:580.39:310.07:035:46Waxing Crescent23Sun
24Mon3:482.73:513.09:400.410:150.17:045:45Waxing Crescent24Mon
25Tue4:322.64:352.910:220.511:000.27:055:44Waxing Crescent25Tue
26Wed5:182.55:212.711:080.611:480.37:065:42Waxing Crescent26Wed
27Thu6:072.46:122.711:570.77:075:41First Quarter27Thu
28Fri7:012.37:072.612:400.412:520.77:085:39First Quarter28Fri
29Sat7:552.38:032.61:330.51:480.77:105:38First Quarter29Sat
30Sun8:482.48:592.62:260.52:430.77:115:37First Quarter30Sun
31Mon9:392.59:522.63:170.43:380.67:125:36Waxing Gibbous31Mon
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 4:39 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 100% 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 Full Moon (100% 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