Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 31m at 10:50 pm (0.6 ft)
Next high tide (tomorrow) : 4:37 am (9.4 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Feb 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:0610.32:2510.38:30-0.48:56-0.56:544:55Waxing Crescent1Mon
2Tue2:5510.03:169.79:210.09:450.16:534:56First Quarter2Tue
3Wed3:449.64:099.110:150.510:360.76:524:58First Quarter3Wed
4Thu4:369.35:058.511:110.911:281.16:504:59First Quarter4Thu
5Fri5:309.06:028.212:081.16:495:00First Quarter5Fri
6Sat6:258.97:018.012:221.41:061.26:485:01Waxing Gibbous6Sat
7Sun7:218.97:598.01:171.62:041.16:475:03Waxing Gibbous7Sun
8Mon8:159.18:528.22:111.62:570.96:465:04Waxing Gibbous8Mon
9Tue9:039.49:388.53:021.43:440.66:455:05Waxing Gibbous9Tue
10Wed9:479.710:198.83:491.14:260.36:445:06Waxing Gibbous10Wed
11Thu10:289.910:589.14:320.75:050.06:425:08Full Moon11Thu
12Fri11:0710.111:369.35:130.45:43-0.36:415:09Full Moon12Fri
13Sat11:4610.35:530.26:22-0.56:405:10Full Moon13Sat
14Sun12:149.612:2510.36:340.07:00-0.66:385:12Waning Gibbous14Sun
15Mon12:529.81:0610.37:16-0.27:40-0.66:375:13Waning Gibbous15Mon
16Tue1:3110.01:4910.28:00-0.38:22-0.56:365:14Waning Gibbous16Tue
17Wed2:1310.12:349.98:46-0.39:08-0.36:345:15Waning Gibbous17Wed
18Thu2:5810.23:259.69:37-0.29:58-0.16:335:17Third Quarter18Thu
19Fri3:4910.24:219.310:32-0.110:530.26:325:18Third Quarter19Fri
20Sat4:4610.15:229.011:320.011:520.46:305:19Third Quarter20Sat
21Sun5:4610.16:278.912:350.06:295:20Waning Crescent21Sun
22Mon6:5110.27:349.112:540.41:39-0.26:275:21Waning Crescent22Mon
23Tue7:5610.48:399.41:580.32:42-0.56:265:23Waning Crescent23Tue
24Wed8:5810.79:389.83:000.03:41-0.96:245:24Waning Crescent24Wed
25Thu9:5511.010:3110.23:58-0.44:35-1.26:235:25New Moon25Thu
26Fri10:4811.211:2010.44:51-0.85:24-1.36:215:26New Moon26Fri
27Sat11:3811.15:42-0.96:12-1.36:205:28New Moon27Sat
28Sun12:0810.512:2710.96:31-1.06:57-1.06:185:29Waxing Crescent28Sun
29Mon12:5310.51:1310.57:18-0.87:41-0.76:175:30Waxing Crescent29Mon
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 1:43 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 66% 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 (66% 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