Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 12:55 pm (1.1 ft)
Next high tide : in 52m at 6:30 am (8.9 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Feb 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:3610.53:0010.09:05-0.59:27-0.26:544:55Waning Gibbous1Wed
2Thu3:2610.13:549.39:590.010:190.46:534:56Third Quarter2Thu
3Fri4:199.74:518.610:560.511:131.06:524:58Third Quarter3Fri
4Sat5:149.35:518.211:550.96:504:59Third Quarter4Sat
5Sun6:119.16:527.912:081.412:561.16:495:00Third Quarter5Sun
6Mon7:099.07:537.91:051.61:561.16:485:01Waning Crescent6Mon
7Tue8:069.18:488.02:021.72:531.06:475:03Waning Crescent7Tue
8Wed8:589.39:358.32:551.53:410.86:465:04Waning Crescent8Wed
9Thu9:429.510:168.63:431.24:220.56:455:05Waning Crescent9Thu
10Fri10:239.810:548.94:260.95:000.26:445:06New Moon10Fri
11Sat11:029.911:309.25:070.65:360.06:425:08New Moon11Sat
12Sun11:3910.05:460.46:12-0.26:415:09New Moon12Sun
13Mon12:059.412:1710.06:260.26:49-0.26:405:10New Moon13Mon
14Tue12:419.612:559.97:050.17:26-0.26:385:12Waxing Crescent14Tue
15Wed1:179.81:359.87:460.08:05-0.16:375:13Waxing Crescent15Wed
16Thu1:559.92:179.58:290.08:460.16:365:14Waxing Crescent16Thu
17Fri2:379.93:039.29:160.19:320.36:345:15First Quarter17Fri
18Sat3:2310.03:558.910:080.210:240.56:335:17First Quarter18Sat
19Sun4:169.94:548.711:060.311:220.76:325:18First Quarter19Sun
20Mon5:159.95:578.612:080.26:305:19First Quarter20Mon
21Tue6:1910.07:048.712:230.71:110.16:295:20Waxing Gibbous21Tue
22Wed7:2510.38:109.11:270.62:15-0.26:275:21Waxing Gibbous22Wed
23Thu8:3010.69:119.62:310.23:16-0.76:265:23Waxing Gibbous23Thu
24Fri9:3011.010:0610.23:32-0.34:11-1.16:245:24Full Moon24Fri
25Sat10:2511.210:5710.64:28-0.85:02-1.46:235:25Full Moon25Sat
26Sun11:1711.311:4610.95:21-1.25:51-1.56:215:26Full Moon26Sun
27Mon12:0811.16:12-1.36:38-1.36:205:27Full Moon27Mon
28Tue12:3310.912:5710.87:01-1.37:24-1.06:185:29Waning Gibbous28Tue
29Wed1:1810.81:4410.37:49-1.08:09-0.46:175:30Waning Gibbous29Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447335)

Common Questions About Barnstable Harbor, MA Tides

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What time does the tide turn (slack tide) in Barnstable Harbor, MA today?

Slack tide in Barnstable Harbor, MA is approximately 9:42 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 Barnstable Harbor, MA?

Barnstable 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 Barnstable 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 Barnstable Harbor, MA?

Tide predictions for Barnstable 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 Barnstable Harbor, MA?

Tide data for Barnstable Harbor, MA is sourced from NOAA Station #8447335. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447335.

What is the moon phase in Barnstable Harbor, MA tonight?

Tonight the moon over Barnstable Harbor, MA is Third Quarter (32% illuminated). This places Barnstable 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