Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide (tomorrow) : 1:42 am (0.7 ft)
Next high tide : in 8m at 7:49 pm (3.8 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Sep 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:332.98:433.61:460.61:510.96:077:15Waxing Gibbous1Tue
2Wed9:242.99:343.82:390.52:440.86:087:13Waxing Gibbous2Wed
3Thu10:143.110:253.93:320.43:370.66:097:11Waxing Gibbous3Thu
4Fri11:023.211:154.14:220.24:300.46:107:10Waxing Gibbous4Fri
5Sat11:493.55:110.15:220.26:117:08Full Moon5Sat
6Sun12:064.212:373.75:590.06:140.06:127:06Full Moon6Sun
7Mon12:574.21:253.96:48-0.17:09-0.16:137:05Full Moon7Mon
8Tue1:494.22:154.17:38-0.18:04-0.26:147:03Waning Gibbous8Tue
9Wed2:424.13:054.38:27-0.18:59-0.36:157:01Waning Gibbous9Wed
10Thu3:363.93:574.39:170.09:54-0.26:166:59Waning Gibbous10Thu
11Fri4:333.84:534.310:090.110:51-0.16:176:58Third Quarter11Fri
12Sat5:353.65:534.311:020.311:500.06:186:56Third Quarter12Sat
13Sun6:373.56:534.211:580.46:196:54Third Quarter13Sun
14Mon7:403.47:544.212:500.112:550.56:206:52Third Quarter14Mon
15Tue8:433.48:564.11:510.21:530.66:216:51Waning Crescent15Tue
16Wed9:463.49:574.02:510.32:530.66:226:49Waning Crescent16Wed
17Thu10:423.410:534.03:490.43:500.66:236:47Waning Crescent17Thu
18Fri11:323.511:433.94:390.44:420.66:246:46Waning Crescent18Fri
19Sat12:163.55:210.55:290.66:256:44New Moon19Sat
20Sun12:303.812:563.56:010.56:140.56:266:42New Moon20Sun
21Mon1:143.71:343.56:400.66:590.56:276:40New Moon21Mon
22Tue1:563.62:113.57:200.67:430.56:286:39New Moon22Tue
23Wed2:363.42:473.58:000.78:270.56:296:37Waxing Crescent23Wed
24Thu3:163.33:253.58:410.89:100.56:306:35Waxing Crescent24Thu
25Fri3:583.14:053.49:220.89:550.56:316:33Waxing Crescent25Fri
26Sat4:433.04:493.410:050.910:410.56:326:32Waxing Crescent26Sat
27Sun5:322.95:363.410:500.911:300.56:336:30First Quarter27Sun
28Mon6:212.86:253.411:380.96:346:28First Quarter28Mon
29Tue7:092.87:153.512:200.512:280.96:356:26First Quarter29Tue
30Wed7:582.98:063.61:110.51:200.86:366:25First Quarter30Wed
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 10:45 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 62% 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 First Quarter (62% 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