Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Hyannis Harbor, MA.
Next low tide : in 5h 03m at 1:21 pm (0.5 ft)
Next high tide : 8:06 pm (4.1 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Aug 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:314.22:073.67:300.07:420.25:357:59Waxing Crescent1Mon
2Tue2:214.12:543.88:17-0.18:370.15:367:58Waxing Crescent2Tue
3Wed3:124.03:424.09:040.09:320.15:377:57Waxing Crescent3Wed
4Thu4:063.84:344.19:520.010:280.05:387:56Waxing Crescent4Thu
5Fri5:043.65:304.210:420.211:270.15:397:54First Quarter5Fri
6Sat6:053.46:274.311:340.35:407:53First Quarter6Sat
7Sun7:073.37:254.312:260.112:280.45:417:52First Quarter7Sun
8Mon8:093.28:244.31:270.21:230.55:427:51Waxing Gibbous8Mon
9Tue9:133.19:254.32:300.32:210.65:437:49Waxing Gibbous9Tue
10Wed10:163.210:244.33:320.33:200.65:447:48Waxing Gibbous10Wed
11Thu11:133.211:194.24:290.34:160.65:457:47Waxing Gibbous11Thu
12Fri12:053.35:190.35:080.65:467:45Full Moon12Fri
13Sat12:104.112:533.46:030.45:580.65:477:44Full Moon13Sat
14Sun12:584.01:363.46:450.46:460.65:487:43Full Moon14Sun
15Mon1:443.92:163.47:250.57:340.75:497:41Full Moon15Mon
16Tue2:273.72:533.58:040.68:200.75:507:40Waning Gibbous16Tue
17Wed3:093.53:313.58:430.69:050.75:517:38Waning Gibbous17Wed
18Thu3:513.34:103.49:220.79:500.75:527:37Waning Gibbous18Thu
19Fri4:363.14:523.410:020.810:360.75:537:35Waning Gibbous19Fri
20Sat5:243.05:383.410:450.911:250.75:547:34Third Quarter20Sat
21Sun6:142.86:243.511:300.95:557:32Third Quarter21Sun
22Mon7:032.87:123.512:150.712:171.05:567:31Third Quarter22Mon
23Tue7:522.78:013.61:070.71:070.95:577:29Third Quarter23Tue
24Wed8:432.78:523.72:000.71:590.95:587:28Waning Crescent24Wed
25Thu9:352.89:443.92:530.62:530.85:597:26Waning Crescent25Thu
26Fri10:253.010:364.03:460.43:470.66:007:25Waning Crescent26Fri
27Sat11:123.211:274.14:360.24:410.46:017:23New Moon27Sat
28Sun12:003.55:230.15:350.26:027:21New Moon28Sun
29Mon12:184.212:473.86:110.06:290.06:037:20New Moon29Mon
30Tue1:104.11:364.06:590.07:24-0.16:047:18New Moon30Tue
31Wed2:034.12:254.37:480.08:20-0.26:057:16Waxing Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447605)

Common Questions About Hyannis Harbor, MA Tides

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

Slack tide in Hyannis Harbor, MA is approximately 4:43 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 Crescent (30% illuminated). This places Hyannis Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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