Tides Today & Tomorrow in South Yarmouth, MA

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in South Yarmouth, MA.
Next low tide (tomorrow) : 8:49 am (0.1 ft)
Next high tide (tomorrow) : in 4h 54m at 2:26 am (2.9 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 - Jul 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:422.411:492.95:290.35:320.55:108:19Waning Crescent1Sun
2Mon12:302.56:170.26:200.45:108:18New Moon2Mon
3Tue12:353.01:172.67:040.07:070.35:118:18New Moon3Tue
4Wed1:213.12:032.77:50-0.17:550.25:128:18New Moon4Wed
5Thu2:083.22:502.88:35-0.28:440.15:128:18New Moon5Thu
6Fri2:573.33:372.99:22-0.29:340.15:138:17Waxing Crescent6Fri
7Sat3:473.34:253.010:09-0.210:250.05:138:17Waxing Crescent7Sat
8Sun4:383.25:143.010:57-0.211:190.05:148:17Waxing Crescent8Sun
9Mon5:313.16:063.111:47-0.15:158:16First Quarter9Mon
10Tue6:283.07:003.112:160.012:400.05:168:16First Quarter10Tue
11Wed7:282.87:563.11:160.01:350.15:168:15First Quarter11Wed
12Thu8:302.78:543.12:170.12:320.25:178:15Waxing Gibbous12Thu
13Fri9:342.69:543.13:190.13:310.35:188:14Waxing Gibbous13Fri
14Sat10:402.610:543.14:220.14:310.35:198:14Waxing Gibbous14Sat
15Sun11:412.611:513.15:230.15:290.35:198:13Waxing Gibbous15Sun
16Mon12:372.66:190.06:230.35:208:13Full Moon16Mon
17Tue12:433.11:272.67:090.07:130.35:218:12Full Moon17Tue
18Wed1:313.12:132.77:550.08:000.35:228:11Full Moon18Wed
19Thu2:173.02:562.78:380.08:450.35:238:10Full Moon19Thu
20Fri3:003.03:362.79:180.19:280.35:248:10Waning Gibbous20Fri
21Sat3:422.94:152.79:570.110:110.35:258:09Waning Gibbous21Sat
22Sun4:242.84:532.710:360.210:540.45:268:08Waning Gibbous22Sun
23Mon5:062.75:332.711:150.311:390.45:268:07Waning Gibbous23Mon
24Tue5:492.66:142.711:570.45:278:06Third Quarter24Tue
25Wed6:362.56:592.712:260.412:410.55:288:05Third Quarter25Wed
26Thu7:262.47:462.71:160.51:280.55:298:04Third Quarter26Thu
27Fri8:192.38:362.72:090.52:170.65:308:03Third Quarter27Fri
28Sat9:142.39:282.73:030.53:090.65:318:02Waning Crescent28Sat
29Sun10:112.310:232.83:580.44:040.65:328:01Waning Crescent29Sun
30Mon11:072.411:162.94:540.34:590.55:338:00Waning Crescent30Mon
31Tue11:592.55:470.25:520.45:347:59Waning Crescent31Tue
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 5:37 am — 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