Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Hyannis Harbor, MA.
Next low tide : in 1h 57m at 11:49 pm (0.6 ft)
Next high tide (tomorrow) : 6:38 am (3.3 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Jun 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:284.05:273.110:42-0.110:460.65:098:09Third Quarter1Sun
2Mon5:273.96:223.211:34-0.111:460.55:088:09Third Quarter2Mon
3Tue6:283.87:163.512:260.05:088:10Third Quarter3Tue
4Wed7:293.68:093.712:470.41:180.15:078:11Third Quarter4Wed
5Thu8:313.59:023.91:500.32:100.25:078:11Waning Crescent5Thu
6Fri9:343.49:564.22:540.23:030.35:078:12Waning Crescent6Fri
7Sat10:363.310:484.33:560.03:550.35:068:13Waning Crescent7Sat
8Sun11:363.211:384.44:54-0.14:460.45:068:13New Moon8Sun
9Mon12:323.25:47-0.25:350.55:068:14New Moon9Mon
10Tue12:284.41:273.26:38-0.16:240.65:068:14New Moon10Tue
11Wed1:184.32:183.17:29-0.17:130.75:068:15New Moon11Wed
12Thu2:064.23:063.08:160.08:020.85:068:15Waxing Crescent12Thu
13Fri2:544.03:533.09:010.18:500.95:068:16Waxing Crescent13Fri
14Sat3:403.84:412.99:450.39:380.95:068:16Waxing Crescent14Sat
15Sun4:283.65:302.910:270.410:261.05:068:17Waxing Crescent15Sun
16Mon5:183.46:163.011:100.511:171.05:068:17First Quarter16Mon
17Tue6:093.36:583.011:530.65:068:18First Quarter17Tue
18Wed6:593.17:383.112:091.012:360.75:068:18First Quarter18Wed
19Thu7:493.08:193.31:020.91:200.75:068:18First Quarter19Thu
20Fri8:412.99:013.41:550.82:050.85:068:18Waxing Gibbous20Fri
21Sat9:342.89:443.62:490.72:520.85:068:19Waxing Gibbous21Sat
22Sun10:262.810:283.83:420.53:390.85:078:19Waxing Gibbous22Sun
23Mon11:152.811:123.94:320.34:260.85:078:19Waxing Gibbous23Mon
24Tue12:042.95:210.15:130.75:078:19Full Moon24Tue
25Wed12:522.96:100.06:010.75:088:19Full Moon25Wed
26Thu12:464.21:413.07:00-0.16:520.65:088:19Full Moon26Thu
27Fri1:354.32:293.17:51-0.27:450.55:088:19Waning Gibbous27Fri
28Sat2:264.43:183.28:41-0.28:390.55:098:19Waning Gibbous28Sat
29Sun3:184.34:103.39:31-0.29:350.45:098:19Waning Gibbous29Sun
30Mon4:144.15:043.510:20-0.210:330.45:108:19Waning Gibbous30Mon
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 3:13 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 neap phase. Tonight's moon is 42% 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 near their weekly minimum.

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 (42% illuminated). This places Hyannis Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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