Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide : 9:45 pm (0.9 ft)
Next high tide : in 6h 00m at 4:22 pm (3.0 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Aug 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:003.110:104.53:230.03:190.45:357:59Waxing Gibbous1Mon
2Tue11:003.211:084.64:23-0.14:170.45:367:58Waxing Gibbous2Tue
3Wed11:573.35:19-0.25:130.35:377:57Full Moon3Wed
4Thu12:054.712:533.46:13-0.26:090.35:387:55Full Moon4Thu
5Fri1:014.61:483.57:07-0.27:050.35:397:54Full Moon5Fri
6Sat1:564.52:393.67:58-0.18:020.45:407:53Waning Gibbous6Sat
7Sun2:494.33:293.78:460.18:560.45:417:52Waning Gibbous7Sun
8Mon3:424.04:193.79:310.29:490.55:427:50Waning Gibbous8Mon
9Tue4:363.75:103.710:150.410:410.65:437:49Waning Gibbous9Tue
10Wed5:323.56:003.610:590.611:340.75:447:48Third Quarter10Wed
11Thu6:293.26:483.611:430.85:457:46Third Quarter11Thu
12Fri7:233.07:343.612:260.712:290.95:467:45Third Quarter12Fri
13Sat8:172.98:213.61:180.81:151.05:477:44Third Quarter13Sat
14Sun9:112.89:103.62:100.82:031.15:487:42Waning Crescent14Sun
15Mon10:032.89:583.73:030.82:531.15:497:41Waning Crescent15Mon
16Tue10:502.810:443.83:540.73:431.05:507:39Waning Crescent16Tue
17Wed11:332.911:293.84:410.64:310.95:517:38Waning Crescent17Wed
18Thu12:142.95:250.55:180.85:527:37New Moon18Thu
19Fri12:123.912:553.06:080.46:050.75:537:35New Moon19Fri
20Sat12:563.91:353.26:510.36:530.65:547:34New Moon20Sat
21Sun1:393.92:143.37:340.37:420.55:557:32New Moon21Sun
22Mon2:233.82:543.48:170.38:320.45:577:31Waxing Crescent22Mon
23Tue3:083.73:363.69:000.39:230.35:587:29Waxing Crescent23Tue
24Wed3:573.64:213.89:440.310:150.35:597:27Waxing Crescent24Wed
25Thu4:493.45:103.910:300.411:100.26:007:26First Quarter25Thu
26Fri5:463.36:044.011:190.56:017:24First Quarter26Fri
27Sat6:453.27:004.212:060.212:110.56:027:23First Quarter27Sat
28Sun7:453.17:574.31:050.11:060.56:037:21First Quarter28Sun
29Mon8:463.18:584.32:050.12:040.56:047:19Waxing Gibbous29Mon
30Tue9:483.29:594.43:070.13:040.56:057:18Waxing Gibbous30Tue
31Wed10:473.310:584.44:070.14:030.46:067:16Waxing Gibbous31Wed
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 7:03 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 Hyannis Harbor, MA?

Hyannis Harbor, MA is currently in a spring phase. Tonight's moon is 81% 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 Waning Gibbous (81% 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