Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide (tomorrow) : 1:57 am (0.2 ft)
Next high tide : in 5h 29m at 7:44 pm (4.2 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Jan 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:533.610:482.52:510.83:550.37:074:21Waxing Gibbous1Fri
2Sat10:363.611:302.53:380.74:390.27:074:22Full Moon2Sat
3Sun11:183.74:230.75:230.17:074:23Full Moon3Sun
4Mon12:112.612:013.75:090.66:070.07:074:24Full Moon4Mon
5Tue12:522.612:443.75:560.66:50-0.17:074:25Full Moon5Tue
6Wed1:312.71:273.76:450.57:33-0.17:074:26Waning Gibbous6Wed
7Thu2:112.82:113.67:350.48:15-0.17:074:27Waning Gibbous7Thu
8Fri2:533.02:583.48:260.38:58-0.17:074:28Waning Gibbous8Fri
9Sat3:373.23:503.29:190.29:430.07:074:29Third Quarter9Sat
10Sun4:263.44:473.010:140.110:300.07:064:30Third Quarter10Sun
11Mon5:163.65:462.911:120.011:200.17:064:31Third Quarter11Mon
12Tue6:093.86:472.812:12-0.17:064:32Third Quarter12Tue
13Wed7:044.07:492.712:130.21:13-0.17:054:33Waning Crescent13Wed
14Thu8:024.18:532.71:080.22:16-0.27:054:34Waning Crescent14Thu
15Fri9:014.29:552.82:060.23:17-0.37:054:35Waning Crescent15Fri
16Sat10:004.310:532.93:040.24:13-0.47:044:37New Moon16Sat
17Sun10:574.311:483.04:010.25:07-0.47:044:38New Moon17Sun
18Mon11:524.24:560.15:59-0.37:034:39New Moon18Mon
19Tue12:413.112:454.15:520.26:48-0.37:024:40New Moon19Tue
20Wed1:313.21:363.96:460.27:33-0.27:024:41Waxing Crescent20Wed
21Thu2:173.22:253.67:390.28:150.07:014:43Waxing Crescent21Thu
22Fri3:033.33:153.38:300.38:560.17:014:44Waxing Crescent22Fri
23Sat3:493.34:073.19:200.49:360.37:004:45Waxing Crescent23Sat
24Sun4:363.25:002.810:100.410:180.56:594:46First Quarter24Sun
25Mon5:223.25:532.611:000.511:020.66:584:47First Quarter25Mon
26Tue6:073.26:452.511:520.511:480.76:574:49First Quarter26Tue
27Wed6:533.37:382.412:440.56:574:50First Quarter27Wed
28Thu7:413.38:322.312:350.71:370.56:564:51Waxing Gibbous28Thu
29Fri8:303.49:232.41:250.72:310.46:554:52Waxing Gibbous29Fri
30Sat9:183.510:092.42:160.73:210.36:544:54Waxing Gibbous30Sat
31Sun10:053.610:522.53:070.64:070.26:534:55Waxing Gibbous31Sun
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 10:50 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 32% 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 Third Quarter (32% 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