Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide : 8:27 pm (0.3 ft)
Next high tide : in 4h 19m at 2:37 pm (2.6 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 - Feb 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:492.95:310.36:110.06:524:56Full Moon1Mon
2Tue12:242.512:303.06:150.26:51-0.16:504:57Full Moon2Tue
3Wed1:042.71:123.16:580.17:31-0.26:494:58Full Moon3Wed
4Thu1:432.81:553.17:42-0.18:11-0.36:485:00Waning Gibbous4Thu
5Fri2:242.92:393.18:27-0.18:53-0.36:475:01Waning Gibbous5Fri
6Sat3:053.03:243.09:14-0.29:37-0.26:465:02Waning Gibbous6Sat
7Sun3:493.04:132.910:03-0.210:23-0.16:455:04Waning Gibbous7Sun
8Mon4:373.05:062.810:56-0.111:150.06:445:05Third Quarter8Mon
9Tue5:303.06:052.611:540.06:435:06Third Quarter9Tue
10Wed6:282.97:102.512:110.112:570.06:415:07Third Quarter10Wed
11Thu7:312.98:192.41:120.22:030.16:405:09Waning Crescent11Thu
12Fri8:382.99:302.42:160.33:100.16:395:10Waning Crescent12Fri
13Sat9:462.910:362.53:220.34:160.06:375:11Waning Crescent13Sat
14Sun10:493.011:322.64:260.25:14-0.16:365:12Waning Crescent14Sun
15Mon11:443.05:230.16:04-0.26:355:14New Moon15Mon
16Tue12:222.712:343.06:140.06:50-0.26:335:15New Moon16Tue
17Wed1:072.81:203.07:020.07:32-0.26:325:16New Moon17Wed
18Thu1:482.82:033.07:47-0.18:12-0.16:315:17Waxing Crescent18Thu
19Fri2:272.82:452.98:300.08:510.06:295:19Waxing Crescent19Fri
20Sat3:052.83:252.89:120.09:290.16:285:20Waxing Crescent20Sat
21Sun3:432.84:072.69:540.110:090.26:265:21Waxing Crescent21Sun
22Mon4:232.74:522.510:390.210:520.46:255:22First Quarter22Mon
23Tue5:072.65:402.311:280.311:390.56:235:24First Quarter23Tue
24Wed5:562.66:342.212:210.46:225:25First Quarter24Wed
25Thu6:492.57:312.212:300.61:170.56:205:26First Quarter25Thu
26Fri7:452.58:312.21:250.62:140.56:195:27First Quarter26Fri
27Sat8:432.59:292.22:220.63:120.46:175:28Waxing Gibbous27Sat
28Sun9:402.610:222.33:180.54:050.36:165:30Waxing Gibbous28Sun
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 5:32 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