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 (tomorrow) : 1:44 am (0.4 ft)
Next high tide : in 1h 56m at 6:50 pm (10.4 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 - Mar 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:0210.44:438.910:52-0.111:080.66:165:30First Quarter1Tue
2Wed5:0510.15:508.611:560.16:155:31First Quarter2Wed
3Thu6:129.97:008.612:120.81:020.26:135:33Waxing Gibbous3Thu
4Fri7:219.98:098.81:180.92:080.16:115:34Waxing Gibbous4Fri
5Sat8:2810.19:099.22:240.73:10-0.16:105:35Waxing Gibbous5Sat
6Sun9:2710.310:019.63:250.34:04-0.46:085:36Waxing Gibbous6Sun
7Mon10:1910.410:4710.04:19-0.14:51-0.56:075:37Full Moon7Mon
8Tue11:0610.411:2910.25:08-0.35:35-0.56:055:38Full Moon8Tue
9Wed11:5010.35:53-0.56:16-0.46:035:40Full Moon9Wed
10Thu12:0910.212:3210.16:36-0.56:55-0.16:025:41Waning Gibbous10Thu
11Fri12:4810.11:139.77:18-0.37:350.26:005:42Waning Gibbous11Fri
12Sat1:2610.01:539.38:000.08:140.65:585:43Waning Gibbous12Sat
13Sun2:069.72:368.98:430.38:561.15:575:44Waning Gibbous13Sun
14Mon2:489.53:218.49:280.79:411.55:555:45Third Quarter14Mon
15Tue3:349.14:118.110:171.110:301.85:535:46Third Quarter15Tue
16Wed4:258.95:067.811:111.411:242.05:525:47Third Quarter16Wed
17Thu5:208.76:027.712:061.55:505:49Third Quarter17Thu
18Fri6:178.77:007.912:192.11:021.55:485:50Third Quarter18Fri
19Sat7:148.97:548.21:161.91:561.25:475:51Waning Crescent19Sat
20Sun8:089.28:438.72:111.52:470.85:455:52Waning Crescent20Sun
21Mon8:589.79:279.43:031.03:340.45:435:53Waning Crescent21Mon
22Tue9:4510.110:0910.03:520.34:18-0.15:415:54New Moon22Tue
23Wed10:3010.410:5010.64:38-0.45:00-0.55:405:55New Moon23Wed
24Thu11:1510.711:3311.15:24-0.95:44-0.85:385:56New Moon24Thu
25Fri12:0110.76:10-1.36:28-0.85:365:57New Moon25Fri
26Sat12:1811.412:4910.66:58-1.57:14-0.85:355:59Waxing Crescent26Sat
27Sun1:0511.41:3910.37:47-1.48:03-0.55:336:00Waxing Crescent27Sun
28Mon1:5411.32:329.98:39-1.18:55-0.15:316:01Waxing Crescent28Mon
29Tue2:4811.03:309.59:35-0.79:520.45:296:02First Quarter29Tue
30Wed3:4710.54:339.110:36-0.210:540.85:286:03First Quarter30Wed
31Thu4:5210.15:418.911:400.25:266:04First Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447335)

Common Questions About Barnstable Harbor, MA Tides

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

Slack tide in Barnstable Harbor, MA is approximately 10:17 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 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