Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide : 9:03 am (0.3 ft)
Next high tide : in 2h 20m at 3:21 am (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 - Jan 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:123.22:184.27:300.18:24-0.47:074:22Waning Gibbous1Tue
2Wed3:063.33:123.98:300.29:12-0.37:074:22Waning Gibbous2Wed
3Thu4:063.34:123.69:240.310:000.07:074:23Third Quarter3Thu
4Fri5:003.35:123.310:240.410:480.27:074:24Third Quarter4Fri
5Sat5:543.46:123.011:240.511:360.47:074:25Third Quarter5Sat
6Sun6:423.47:122.812:180.57:074:26Third Quarter6Sun
7Mon7:303.48:122.712:180.61:180.57:074:27Waning Crescent7Mon
8Tue8:183.59:122.61:060.72:120.47:074:28Waning Crescent8Tue
9Wed9:003.510:002.51:540.83:060.47:074:29Waning Crescent9Wed
10Thu9:483.510:422.52:420.83:480.37:064:30Waning Crescent10Thu
11Fri10:303.611:242.53:240.84:300.27:064:32New Moon11Fri
12Sat11:123.64:120.75:120.27:064:33New Moon12Sat
13Sun12:062.511:54 AM3.64:540.75:540.17:054:34New Moon13Sun
14Mon12:422.612:303.65:420.66:360.17:054:35New Moon14Mon
15Tue1:242.61:123.66:240.67:180.07:044:36Waxing Crescent15Tue
16Wed2:002.71:543.57:120.68:000.07:044:37Waxing Crescent16Wed
17Thu2:362.72:363.48:000.58:420.07:034:38Waxing Crescent17Thu
18Fri3:182.93:243.28:540.49:240.07:034:40Waxing Crescent18Fri
19Sat4:003.04:183.19:420.310:060.17:024:41First Quarter19Sat
20Sun4:483.25:122.910:360.210:540.27:014:42First Quarter20Sun
21Mon5:363.56:122.811:360.111:420.27:014:43First Quarter21Mon
22Tue6:303.77:122.712:36-0.17:004:44First Quarter22Tue
23Wed7:243.98:122.712:360.21:36-0.26:594:46Waxing Gibbous23Wed
24Thu8:244.19:122.71:300.22:36-0.36:594:47Waxing Gibbous24Thu
25Fri9:244.210:122.82:300.23:36-0.46:584:48Waxing Gibbous25Fri
26Sat10:184.311:122.93:300.14:36-0.56:574:49Full Moon26Sat
27Sun11:184.44:240.05:30-0.56:564:51Full Moon27Sun
28Mon12:063.112:124.35:180.06:18-0.56:554:52Full Moon28Mon
29Tue1:003.21:064.26:180.07:12-0.46:544:53Waning Gibbous29Tue
30Wed1:543.32:003.97:120.18:00-0.36:534:54Waning Gibbous30Wed
31Thu2:423.42:543.78:060.18:42-0.16:524:56Waning Gibbous31Thu
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 6:12 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