Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Hyannis Harbor, MA.
Next low tide : in 3h 55m at 9:32 pm (0.3 ft)
Next high tide (tomorrow) : 4:15 am (3.6 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Oct 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:143.29:264.12:280.22:320.56:396:21Waning Crescent1Tue
2Wed10:123.410:274.13:270.23:350.46:406:20Waning Crescent2Wed
3Thu11:053.611:254.04:210.24:350.36:416:18Waning Crescent3Thu
4Fri11:553.85:100.25:310.26:426:16New Moon4Fri
5Sat12:213.912:423.95:560.36:250.16:436:15New Moon5Sat
6Sun1:143.71:274.06:410.47:160.16:446:13New Moon6Sun
7Mon2:053.62:114.07:250.58:060.16:456:11Waxing Crescent7Mon
8Tue2:533.42:543.98:090.78:520.26:466:10Waxing Crescent8Tue
9Wed3:413.23:373.88:520.89:370.36:476:08Waxing Crescent9Wed
10Thu4:313.04:233.69:350.910:230.46:486:06Waxing Crescent10Thu
11Fri5:232.95:133.510:201.011:100.56:496:05First Quarter11Fri
12Sat6:162.86:053.411:071.111:590.66:506:03First Quarter12Sat
13Sun7:072.76:573.411:571.16:526:02First Quarter13Sun
14Mon7:542.77:483.312:490.712:491.16:536:00First Quarter14Mon
15Tue8:412.88:403.41:390.71:421.16:545:58Waxing Gibbous15Tue
16Wed9:262.99:313.42:290.72:370.96:555:57Waxing Gibbous16Wed
17Thu10:083.010:203.43:170.63:310.76:565:55Waxing Gibbous17Thu
18Fri10:483.311:083.44:030.54:220.56:575:54Waxing Gibbous18Fri
19Sat11:283.511:553.44:460.55:120.36:585:52Full Moon19Sat
20Sun12:083.75:280.46:000.17:005:51Full Moon20Sun
21Mon12:423.412:493.96:110.46:50-0.17:015:49Full Moon21Mon
22Tue1:303.31:334.16:570.47:41-0.37:025:48Full Moon22Tue
23Wed2:193.32:194.27:440.48:32-0.37:035:46Waning Gibbous23Wed
24Thu3:093.23:084.38:330.59:25-0.37:045:45Waning Gibbous24Thu
25Fri4:023.14:014.29:230.510:18-0.37:055:44Waning Gibbous25Fri
26Sat4:593.05:014.210:170.511:15-0.17:075:42Third Quarter26Sat
27Sun6:013.06:044.111:150.67:085:41Third Quarter27Sun
28Mon7:023.17:084.012:120.012:160.67:095:40Third Quarter28Mon
29Tue8:013.28:113.81:100.11:190.67:105:38Waning Crescent29Tue
30Wed9:003.49:163.72:070.22:240.57:115:37Waning Crescent30Wed
31Thu9:553.610:183.63:030.23:290.47:135:36Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447605)

Common Questions About Hyannis Harbor, MA Tides

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What time does the tide turn (slack tide) in Hyannis Harbor, MA today?

Slack tide in Hyannis Harbor, MA is approximately 12:53 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 Hyannis Harbor, MA?

Hyannis Harbor, MA is currently in a spring phase. Tonight's moon is 18% 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 Hyannis Harbor, 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 Hyannis Harbor, MA?

Tide predictions for Hyannis Harbor, 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 Hyannis Harbor, MA?

Tide data for Hyannis Harbor, MA is sourced from NOAA Station #8447605. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447605.

What is the moon phase in Hyannis Harbor, MA tonight?

Tonight the moon over Hyannis Harbor, MA is Waxing Crescent (18% illuminated). This places Hyannis Harbor, 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