Tides Today & Tomorrow in Hyannis Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Hyannis Harbor, MA.
Next low tide (tomorrow) : 1:57 am (0.2 ft)
Next high tide : in 3h 46m at 7:44 pm (4.2 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447605
Common Questions About Tides

Hyannis Harbor, MA Tides - Mar 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:323.510:112.72:370.53:310.26:145:31Waxing Gibbous1Mon
2Tue10:203.610:552.93:300.34:160.06:135:32Full Moon2Tue
3Wed11:083.611:373.24:210.15:00-0.16:115:33Full Moon3Wed
4Thu11:563.65:130.05:45-0.16:105:35Full Moon4Thu
5Fri12:213.412:453.66:05-0.26:30-0.16:085:36Full Moon5Fri
6Sat1:053.71:353.56:59-0.47:16-0.16:065:37Waning Gibbous6Sat
7Sun1:513.92:263.37:52-0.58:03-0.16:055:38Waning Gibbous7Sun
8Mon2:404.03:213.18:46-0.58:520.06:035:39Waning Gibbous8Mon
9Tue3:334.04:203.09:42-0.49:440.16:015:40Third Quarter9Tue
10Wed4:314.05:222.810:40-0.310:390.26:005:42Third Quarter10Wed
11Thu5:334.06:242.811:40-0.111:370.35:585:43Third Quarter11Thu
12Fri6:353.97:282.812:410.05:565:44Third Quarter12Fri
13Sat7:393.88:322.912:370.41:440.15:555:45Waning Crescent13Sat
14Sun9:433.810:323.01:400.43:450.16:536:46Waning Crescent14Sun
15Mon10:433.711:243.13:420.34:370.16:516:47Waning Crescent15Mon
16Tue11:383.64:400.35:220.26:506:48New Moon16Tue
17Wed12:103.312:293.55:320.26:030.26:486:49New Moon17Wed
18Thu12:533.41:173.46:210.26:420.36:466:51New Moon18Thu
19Fri1:333.42:013.37:080.17:220.46:456:52New Moon19Fri
20Sat2:103.42:433.17:530.18:010.56:436:53Waxing Crescent20Sat
21Sun2:473.43:252.98:360.18:410.66:416:54Waxing Crescent21Sun
22Mon3:253.34:072.89:190.29:210.76:406:55Waxing Crescent22Mon
23Tue4:063.34:522.610:020.210:030.76:386:56Waxing Crescent23Tue
24Wed4:503.25:412.510:480.310:480.86:366:57First Quarter24Wed
25Thu5:393.26:302.411:370.411:360.86:346:58First Quarter25Thu
26Fri6:293.27:182.412:270.46:336:59First Quarter26Fri
27Sat7:193.28:072.412:260.81:180.46:317:01First Quarter27Sat
28Sun8:113.38:552.51:180.72:100.46:297:02Waxing Gibbous28Sun
29Mon9:043.39:442.72:130.63:010.36:287:03Waxing Gibbous29Mon
30Tue9:573.410:303.03:100.43:500.26:267:04Waxing Gibbous30Tue
31Wed10:493.411:153.34:060.24:370.16:247:05Waxing Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447605)

Common Questions About Hyannis Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Hyannis Harbor, MA today?

Slack tide in Hyannis Harbor, MA is approximately 10:50 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 32% 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 Third Quarter (32% 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