Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in South Yarmouth, MA.
Next low tide : in 1h 52m at 8:27 pm (0.3 ft)
Next high tide (tomorrow) : 2:41 am (3.0 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:33 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

South Yarmouth, MA Tides - Nov 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:142.46:182.612:050.77:135:35Third Quarter1Mon
2Tue7:052.47:122.612:460.412:590.77:145:34Third Quarter2Tue
3Wed7:572.48:072.61:370.41:540.67:155:32Third Quarter3Wed
4Thu8:472.59:012.62:280.42:490.57:165:31Third Quarter4Thu
5Fri9:372.69:562.73:180.33:430.47:185:30Waning Crescent5Fri
6Sat10:252.810:492.84:080.24:370.27:195:29Waning Crescent6Sat
7Sun10:123.010:402.93:570.14:290.06:204:28Waning Crescent7Sun
8Mon10:583.211:303.04:460.05:20-0.26:214:27New Moon8Mon
9Tue11:443.45:330.06:09-0.46:224:26New Moon9Tue
10Wed12:203.012:323.56:21-0.16:59-0.46:244:25New Moon10Wed
11Thu1:113.01:223.57:11-0.17:51-0.56:254:24Waxing Crescent11Thu
12Fri2:043.02:153.58:02-0.18:44-0.46:264:23Waxing Crescent12Fri
13Sat2:592.93:103.48:560.09:38-0.36:274:22Waxing Crescent13Sat
14Sun3:562.84:083.29:520.110:35-0.26:284:21Waxing Crescent14Sun
15Mon4:572.85:103.010:520.211:350.06:304:20First Quarter15Mon
16Tue6:002.76:162.911:570.36:314:19First Quarter16Tue
17Wed7:042.77:232.812:370.11:030.36:324:18First Quarter17Wed
18Thu8:052.78:282.71:370.22:080.36:334:18Waxing Gibbous18Thu
19Fri9:032.89:302.72:350.23:110.36:344:17Waxing Gibbous19Fri
20Sat9:552.810:262.63:300.34:090.26:364:16Waxing Gibbous20Sat
21Sun10:422.911:142.64:200.34:590.16:374:15Waxing Gibbous21Sun
22Mon11:232.911:572.65:050.35:430.16:384:15Full Moon22Mon
23Tue12:022.95:460.46:240.16:394:14Full Moon23Tue
24Wed12:382.612:392.96:250.47:030.16:404:14Full Moon24Wed
25Thu1:172.61:172.97:040.47:410.16:414:13Full Moon25Thu
26Fri1:572.51:562.97:440.48:200.16:424:13Waning Gibbous26Fri
27Sat2:372.52:362.88:240.59:000.26:444:12Waning Gibbous27Sat
28Sun3:172.53:172.89:050.59:410.26:454:12Waning Gibbous28Sun
29Mon3:582.53:592.79:480.510:240.26:464:11Waning Gibbous29Mon
30Tue4:412.44:452.710:340.511:090.36:474:11Third Quarter30Tue
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 11:34 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 99% 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 (99% 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