Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide (tomorrow) : 4:56 am (0.0 ft)
Next high tide : in 6h 27m at 10:44 pm (4.5 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Apr 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:233.56:122.811:100.211:150.66:227:07Third Quarter1Fri
2Sat6:153.37:032.811:590.36:207:08Third Quarter2Sat
3Sun7:073.37:532.712:040.712:470.46:187:09Third Quarter3Sun
4Mon7:583.28:412.712:540.71:360.56:177:10Third Quarter4Mon
5Tue8:493.29:282.81:460.72:260.56:157:11Waning Crescent5Tue
6Wed9:393.210:122.92:390.73:150.56:137:12Waning Crescent6Wed
7Thu10:283.210:533.13:320.54:010.46:127:13Waning Crescent7Thu
8Fri11:143.211:343.24:220.44:460.36:107:14Waning Crescent8Fri
9Sat11:593.25:100.25:290.36:087:15New Moon9Sat
10Sun12:143.412:443.25:570.06:130.36:077:17New Moon10Sun
11Mon12:553.51:293.26:45-0.16:570.26:057:18New Moon11Mon
12Tue1:373.72:143.27:33-0.27:430.26:047:19New Moon12Tue
13Wed2:213.83:003.18:22-0.38:300.26:027:20Waxing Crescent13Wed
14Thu3:063.93:493.19:11-0.39:190.26:007:21Waxing Crescent14Thu
15Fri3:553.94:413.110:02-0.310:100.25:597:22Waxing Crescent15Fri
16Sat4:493.95:383.110:55-0.311:040.35:577:23First Quarter16Sat
17Sun5:473.86:353.111:49-0.25:567:24First Quarter17Sun
18Mon6:473.87:333.312:010.212:45-0.25:547:25First Quarter18Mon
19Tue7:483.78:303.41:010.21:41-0.15:537:26Waxing Gibbous19Tue
20Wed8:503.79:283.62:020.22:37-0.15:517:27Waxing Gibbous20Wed
21Thu9:533.710:233.83:050.13:330.05:507:29Waxing Gibbous21Thu
22Fri10:533.611:163.94:05-0.14:250.05:487:30Waxing Gibbous22Fri
23Sat11:503.65:02-0.25:150.15:477:31Full Moon23Sat
24Sun12:064.012:443.55:55-0.26:030.25:457:32Full Moon24Sun
25Mon12:544.11:363.46:46-0.26:500.35:447:33Full Moon25Mon
26Tue1:414.02:263.37:35-0.27:370.45:437:34Full Moon26Tue
27Wed2:273.93:133.28:22-0.18:230.55:417:35Waning Gibbous27Wed
28Thu3:123.84:003.19:070.09:080.65:407:36Waning Gibbous28Thu
29Fri3:573.64:482.99:510.19:540.75:397:37Waning Gibbous29Fri
30Sat4:453.55:382.910:360.210:410.85:377:38Waning Gibbous30Sat
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 1:50 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 6% 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 Crescent (6% 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