Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide : 10:13 pm (0.5 ft)
Next high tide : in 3h 02m at 4:23 pm (3.5 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Nov 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:343.68:563.81:470.12:110.26:124:36Waning Crescent1Tue
2Wed9:283.99:563.72:420.13:130.06:134:35Waning Crescent2Wed
3Thu10:194.110:543.73:330.14:10-0.26:154:34New Moon3Thu
4Fri11:094.211:503.64:220.15:05-0.36:164:33New Moon4Fri
5Sat11:584.35:100.25:58-0.36:174:31New Moon5Sat
6Sun12:443.512:464.35:590.36:50-0.36:184:30New Moon6Sun
7Mon1:373.41:344.26:470.57:39-0.26:194:29Waxing Crescent7Mon
8Tue2:273.22:214.07:350.68:270.06:214:28Waxing Crescent8Tue
9Wed3:193.13:103.88:220.89:130.16:224:27Waxing Crescent9Wed
10Thu4:142.94:033.69:100.910:000.36:234:26First Quarter10Thu
11Fri5:092.94:573.49:591.010:480.46:244:25First Quarter11Fri
12Sat6:002.85:503.310:511.011:350.56:264:24First Quarter12Sat
13Sun6:462.96:413.211:431.06:274:23First Quarter13Sun
14Mon7:302.97:323.112:220.612:360.96:284:22First Quarter14Mon
15Tue8:133.08:243.11:090.61:310.86:294:21Waxing Gibbous15Tue
16Wed8:543.29:143.11:550.62:240.66:304:20Waxing Gibbous16Wed
17Thu9:333.410:013.12:410.63:140.46:324:19Waxing Gibbous17Thu
18Fri10:123.510:473.03:240.54:020.26:334:19Full Moon18Fri
19Sat10:523.711:333.04:070.54:490.06:344:18Full Moon19Sat
20Sun11:333.84:510.55:36-0.16:354:17Full Moon20Sun
21Mon12:193.012:164.05:360.56:24-0.26:364:16Full Moon21Mon
22Tue1:063.01:014.06:230.57:14-0.36:384:16Waning Gibbous22Tue
23Wed1:533.01:484.17:120.58:03-0.36:394:15Waning Gibbous23Wed
24Thu2:423.02:384.08:020.58:54-0.36:404:15Waning Gibbous24Thu
25Fri3:353.03:344.08:550.59:46-0.36:414:14Waning Gibbous25Fri
26Sat4:323.04:343.99:520.510:40-0.26:424:13Third Quarter26Sat
27Sun5:293.25:363.710:520.411:34-0.16:434:13Third Quarter27Sun
28Mon6:253.46:383.611:540.46:444:13Third Quarter28Mon
29Tue7:203.67:413.512:270.012:570.36:454:12Waning Crescent29Tue
30Wed8:153.88:453.41:210.12:020.16:474:12Waning Crescent30Wed
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 7:18 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 75% 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 Waning Gibbous (75% 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