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 3h 52m 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 - Apr 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:162.710:022.52:520.43:370.26:227:06Waning Crescent1Sat
2Sun10:192.711:012.63:550.44:380.36:207:07Waning Crescent2Sun
3Mon11:172.711:502.64:550.45:300.26:187:08Waning Crescent3Mon
4Tue12:052.75:460.36:140.26:167:09Waning Crescent4Tue
5Wed12:322.712:482.86:310.26:530.26:157:11New Moon5Wed
6Thu1:092.81:262.87:110.17:290.16:137:12New Moon6Thu
7Fri1:442.82:042.87:490.18:050.16:127:13New Moon7Fri
8Sat2:182.92:412.88:260.08:410.26:107:14New Moon8Sat
9Sun2:532.93:182.89:040.09:180.26:087:15Waxing Crescent9Sun
10Mon3:282.93:562.79:430.19:550.26:077:16Waxing Crescent10Mon
11Tue4:052.94:352.710:220.110:350.36:057:17Waxing Crescent11Tue
12Wed4:442.85:182.611:040.111:170.46:037:18Waxing Crescent12Wed
13Thu5:262.86:042.511:510.26:027:19First Quarter13Thu
14Fri6:142.86:562.512:050.412:420.26:007:20First Quarter14Fri
15Sat7:082.87:522.512:580.41:380.25:597:21First Quarter15Sat
16Sun8:072.88:502.61:560.42:350.25:577:23First Quarter16Sun
17Mon9:082.99:502.72:560.33:340.15:567:24Waxing Gibbous17Mon
18Tue10:113.010:482.93:570.24:320.05:547:25Waxing Gibbous18Tue
19Wed11:113.111:423.14:580.05:28-0.25:537:26Waxing Gibbous19Wed
20Thu12:083.25:55-0.26:21-0.35:517:27Full Moon20Thu
21Fri12:343.31:023.36:49-0.47:12-0.45:507:28Full Moon21Fri
22Sat1:243.41:563.37:41-0.58:02-0.45:487:29Full Moon22Sat
23Sun2:153.52:493.38:33-0.68:52-0.35:477:30Full Moon23Sun
24Mon3:053.53:423.29:24-0.59:42-0.25:457:31Waning Gibbous24Mon
25Tue3:563.44:353.010:16-0.410:330.05:447:32Waning Gibbous25Tue
26Wed4:483.25:302.911:09-0.211:270.15:427:34Waning Gibbous26Wed
27Thu5:423.16:272.712:04-0.15:417:35Third Quarter27Thu
28Fri6:402.97:272.612:230.31:030.15:407:36Third Quarter28Fri
29Sat7:412.88:282.61:230.42:020.25:387:37Third Quarter29Sat
30Sun8:422.79:262.62:230.53:000.35:377:38Third Quarter30Sun
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