Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Hyannis Harbor, MA.
Next low tide : in 4h 38m at 11:06 pm (0.4 ft)
Next high tide (tomorrow) : 5:38 am (3.1 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Aug 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:443.82:293.07:370.57:310.95:367:58New Moon1Sat
2Sun2:243.73:053.18:160.58:170.95:377:57Waxing Crescent2Sun
3Mon3:033.63:413.18:550.59:020.95:387:55Waxing Crescent3Mon
4Tue3:443.54:193.19:340.69:490.85:397:54Waxing Crescent4Tue
5Wed4:283.35:003.210:150.610:370.85:407:53Waxing Crescent5Wed
6Thu5:153.25:423.310:570.711:270.75:417:52First Quarter6Thu
7Fri6:053.06:263.511:410.75:427:50First Quarter7Fri
8Sat6:562.97:113.712:190.612:270.85:437:49First Quarter8Sat
9Sun7:492.98:003.91:130.51:160.75:447:48First Quarter9Sun
10Mon8:442.98:544.12:080.42:090.75:457:46Waxing Gibbous10Mon
11Tue9:413.09:504.33:060.23:040.65:467:45Waxing Gibbous11Tue
12Wed10:383.110:474.54:030.04:000.45:477:44Waxing Gibbous12Wed
13Thu11:333.311:434.64:58-0.14:560.35:487:42Full Moon13Thu
14Fri12:273.55:51-0.25:530.15:497:41Full Moon14Fri
15Sat12:394.71:213.76:44-0.36:500.05:507:39Full Moon15Sat
16Sun1:364.62:143.97:37-0.37:490.05:527:38Waning Gibbous16Sun
17Mon2:324.53:064.08:28-0.28:470.05:537:37Waning Gibbous17Mon
18Tue3:284.33:594.19:18-0.19:450.05:547:35Waning Gibbous18Tue
19Wed4:264.04:554.210:070.110:430.15:557:34Third Quarter19Wed
20Thu5:283.75:524.110:580.311:430.25:567:32Third Quarter20Thu
21Fri6:313.56:494.111:480.55:577:30Third Quarter21Fri
22Sat7:343.37:444.012:420.412:400.75:587:29Third Quarter22Sat
23Sun8:373.18:414.01:420.51:320.95:597:27Waning Crescent23Sun
24Mon9:383.19:363.92:420.62:241.06:007:26Waning Crescent24Mon
25Tue10:343.010:283.93:400.63:161.06:017:24Waning Crescent25Tue
26Wed11:223.011:153.84:270.64:061.06:027:23Waning Crescent26Wed
27Thu12:033.05:070.64:520.96:037:21New Moon27Thu
28Fri12:413.15:450.65:360.96:047:19New Moon28Fri
29Sat12:393.81:163.16:230.66:210.86:057:18New Moon29Sat
30Sun1:193.71:513.27:020.67:060.76:067:16New Moon30Sun
31Mon1:593.62:263.27:410.67:520.76:077:14Waxing Crescent31Mon
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 2:22 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 transitional phase. Tonight's moon is 66% 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 (66% 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