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 33m at 9:46 am (0.5 ft)
Next high tide : 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 - Apr 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:213.25:260.35:470.55:236:06New Moon1Sun
2Mon12:343.21:013.16:110.26:260.55:216:07New Moon2Mon
3Tue1:093.21:413.06:550.27:070.55:196:08Waxing Crescent3Tue
4Wed1:443.32:222.97:400.17:480.65:186:09Waxing Crescent4Wed
5Thu2:213.33:062.78:250.18:300.65:166:10Waxing Crescent5Thu
6Fri3:013.43:532.69:120.09:140.75:146:12Waxing Crescent6Fri
7Sat3:473.44:442.610:010.010:020.75:136:13First Quarter7Sat
8Sun4:403.55:372.610:540.010:550.65:116:14First Quarter8Sun
9Mon5:363.56:302.611:480.011:510.55:096:15First Quarter9Mon
10Tue6:343.67:252.812:440.05:086:16First Quarter10Tue
11Wed7:353.78:213.012:500.41:40-0.15:066:17Waxing Gibbous11Wed
12Thu8:363.89:163.31:510.22:36-0.15:056:18Waxing Gibbous12Thu
13Fri9:373.810:083.72:530.03:29-0.25:036:19Waxing Gibbous13Fri
14Sat10:353.811:003.93:53-0.34:19-0.25:016:20Full Moon14Sat
15Sun11:333.811:514.24:50-0.45:09-0.25:006:21Full Moon15Sun
16Mon12:293.75:47-0.65:59-0.14:586:22Full Moon16Mon
17Tue12:414.31:253.66:43-0.66:500.04:576:24Waning Gibbous17Tue
18Wed1:324.32:193.47:38-0.57:400.24:556:25Waning Gibbous18Wed
19Thu2:234.23:163.28:31-0.48:300.44:546:26Waning Gibbous19Thu
20Fri3:164.04:153.09:23-0.29:200.54:526:27Waning Gibbous20Fri
21Sat4:133.85:162.910:160.010:120.74:516:28Third Quarter21Sat
22Sun5:113.66:142.911:090.211:050.84:496:29Third Quarter22Sun
23Mon6:093.57:092.812:000.44:486:30Third Quarter23Mon
24Tue7:053.38:012.812:510.54:466:31Third Quarter24Tue
25Wed8:003.38:482.912:530.91:390.64:456:32Waning Crescent25Wed
26Thu8:533.29:283.01:480.82:250.64:436:33Waning Crescent26Thu
27Fri9:413.110:053.12:410.73:070.64:426:34Waning Crescent27Fri
28Sat10:263.110:413.33:300.63:470.64:416:35Waning Crescent28Sat
29Sun12:103.15:160.45:270.65:397:37New Moon29Sun
30Mon12:173.412:533.06:010.36:080.65:387:38New Moon30Mon
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 1:04 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