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 48m at 9:03 am (0.3 ft)
Next high tide : 3:48 pm (3.9 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 - Apr 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:553.44:452.79:520.29:520.76:227:07Waning Gibbous1Mon
2Tue4:403.35:352.610:370.310:360.86:207:08Waning Gibbous2Tue
3Wed5:283.26:252.511:240.411:230.96:187:09Third Quarter3Wed
4Thu6:183.27:142.412:140.46:177:10Third Quarter4Thu
5Fri7:093.28:022.412:120.91:040.56:157:11Third Quarter5Fri
6Sat8:003.28:502.51:040.91:550.56:137:12Third Quarter6Sat
7Sun8:523.29:372.61:570.82:470.46:127:13Waning Crescent7Sun
8Mon9:443.310:222.82:520.73:360.36:107:14Waning Crescent8Mon
9Tue10:343.311:043.13:460.54:220.36:087:15Waning Crescent9Tue
10Wed11:233.411:453.34:390.25:060.26:077:17Waning Crescent10Wed
11Thu12:123.45:300.05:500.16:057:18New Moon11Thu
12Fri12:283.61:023.46:21-0.26:350.16:047:19New Moon12Fri
13Sat1:123.91:523.37:13-0.47:220.16:027:20New Moon13Sat
14Sun1:584.02:433.28:06-0.58:110.26:007:21Waxing Crescent14Sun
15Mon2:464.23:353.18:59-0.69:000.25:597:22Waxing Crescent15Mon
16Tue3:374.24:313.09:52-0.59:520.35:577:23Waxing Crescent16Tue
17Wed4:344.15:323.010:48-0.410:470.45:567:24First Quarter17Wed
18Thu5:354.06:342.911:46-0.311:460.45:547:25First Quarter18Thu
19Fri6:393.97:363.012:45-0.15:537:26First Quarter19Fri
20Sat7:423.88:373.112:470.51:440.05:517:28First Quarter20Sat
21Sun8:473.79:363.31:510.52:420.15:507:29Waxing Gibbous21Sun
22Mon9:513.610:303.42:560.43:370.25:487:30Waxing Gibbous22Mon
23Tue10:513.511:183.63:590.34:250.35:477:31Waxing Gibbous23Tue
24Wed11:463.44:550.25:090.45:457:32Full Moon24Wed
25Thu12:013.712:373.35:450.25:500.55:447:33Full Moon25Thu
26Fri12:433.71:253.26:310.16:300.65:437:34Full Moon26Fri
27Sat1:223.72:103.17:160.17:110.75:417:35Full Moon27Sat
28Sun2:013.72:532.97:590.17:530.85:407:36Waning Gibbous28Sun
29Mon2:403.63:342.88:410.18:360.95:387:37Waning Gibbous29Mon
30Tue3:203.54:172.79:230.29:190.95:377:38Waning Gibbous30Tue
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 12:25 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 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