Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Hyannis Harbor, MA.
Next low tide : in 3h 50m at 10:13 pm (0.5 ft)
Next high tide (tomorrow) : 4:44 am (3.2 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 - Jul 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:453.56:263.511:400.25:118:19First Quarter1Sun
2Mon6:403.47:153.712:060.512:290.25:118:19First Quarter2Mon
3Tue7:373.38:064.01:030.41:190.25:128:19First Quarter3Tue
4Wed8:373.39:004.22:020.22:120.25:128:18Waxing Gibbous4Wed
5Thu9:383.39:554.43:030.03:070.25:138:18Waxing Gibbous5Thu
6Fri10:393.310:514.64:02-0.24:020.25:138:18Waxing Gibbous6Fri
7Sat11:373.411:464.74:59-0.34:570.25:148:17Full Moon7Sat
8Sun12:353.45:55-0.45:520.25:158:17Full Moon8Sun
9Mon12:424.71:323.56:50-0.46:470.25:168:17Full Moon9Mon
10Tue1:374.72:263.67:44-0.37:430.35:168:16Waning Gibbous10Tue
11Wed2:314.53:203.68:36-0.28:380.45:178:16Waning Gibbous11Wed
12Thu3:254.34:133.69:24-0.19:320.55:188:15Waning Gibbous12Thu
13Fri4:194.05:073.610:110.110:250.65:198:15Waning Gibbous13Fri
14Sat5:153.76:003.610:570.311:190.75:198:14Third Quarter14Sat
15Sun6:123.56:503.611:420.55:208:13Third Quarter15Sun
16Mon7:073.37:363.612:120.812:270.75:218:13Third Quarter16Mon
17Tue8:003.18:213.61:050.81:120.85:228:12Third Quarter17Tue
18Wed8:543.09:063.61:580.81:580.95:238:11Waning Crescent18Wed
19Thu9:482.99:523.72:500.82:450.95:248:11Waning Crescent19Thu
20Fri10:382.910:363.83:410.73:330.95:248:10Waning Crescent20Fri
21Sat11:232.911:193.84:290.64:200.95:258:09Waning Crescent21Sat
22Sun12:062.95:140.55:060.95:268:08New Moon22Sun
23Mon12:023.912:493.05:580.45:520.85:278:07New Moon23Mon
24Tue12:453.91:313.06:430.36:390.85:288:06New Moon24Tue
25Wed1:284.02:123.17:270.27:270.75:298:06New Moon25Wed
26Thu2:113.92:533.28:120.28:160.65:308:05Waxing Crescent26Thu
27Fri2:553.93:353.38:560.19:060.65:318:04Waxing Crescent27Fri
28Sat3:413.84:193.59:400.19:570.55:328:03Waxing Crescent28Sat
29Sun4:313.75:073.610:250.210:510.45:338:02First Quarter29Sun
30Mon5:263.55:583.811:130.211:470.35:348:00First Quarter30Mon
31Tue6:243.46:514.012:030.35:357:59First Quarter31Tue
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 1:28 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 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