Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 4h 55m at 8:12 am (-0.6 ft)
Next high tide : 2:09 pm (10.5 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:2110.83:5310.49:53-0.410:190.25:348:00Waning Gibbous1Sat
2Sun4:1410.24:4510.110:440.211:140.65:357:58Third Quarter2Sun
3Mon5:099.65:379.811:350.75:367:57Third Quarter3Mon
4Tue6:059.16:309.612:101.012:281.25:377:56Third Quarter4Tue
5Wed7:028.77:239.51:071.21:211.65:387:55Third Quarter5Wed
6Thu7:598.58:179.42:041.32:141.85:397:54Waning Crescent6Thu
7Fri8:558.59:109.53:001.33:071.85:407:52Waning Crescent7Fri
8Sat9:488.69:599.73:531.13:581.75:417:51Waning Crescent8Sat
9Sun10:358.810:439.94:400.94:451.55:427:50Waning Crescent9Sun
10Mon11:179.011:2410.15:230.75:281.35:437:49New Moon10Mon
11Tue11:579.26:030.46:101.05:447:47New Moon11Tue
12Wed12:0410.212:369.46:410.26:510.85:457:46New Moon12Wed
13Thu12:4310.31:149.67:200.17:320.65:467:45New Moon13Thu
14Fri1:2310.41:529.87:590.08:140.55:477:43Waxing Crescent14Fri
15Sat2:0410.32:3110.08:39-0.18:570.45:497:42Waxing Crescent15Sat
16Sun2:4610.23:1210.29:200.09:420.35:507:40Waxing Crescent16Sun
17Mon3:3110.13:5610.310:040.110:320.35:517:39Waxing Crescent17Mon
18Tue4:209.94:4510.410:520.311:260.35:527:37First Quarter18Tue
19Wed5:149.65:3810.511:450.55:537:36First Quarter19Wed
20Thu6:129.46:3610.612:230.312:420.65:547:34First Quarter20Thu
21Fri7:149.47:3610.71:240.21:420.65:557:33Waxing Gibbous21Fri
22Sat8:189.48:3910.92:250.02:430.55:567:31Waxing Gibbous22Sat
23Sun9:229.79:4111.23:27-0.33:440.25:577:30Waxing Gibbous23Sun
24Mon10:2210.110:3911.44:27-0.64:43-0.15:587:28Full Moon24Mon
25Tue11:1710.411:3411.55:22-0.95:38-0.45:597:27Full Moon25Tue
26Wed12:0910.76:13-1.16:31-0.66:007:25Full Moon26Wed
27Thu12:2611.512:5910.87:03-1.17:22-0.66:017:24Full Moon27Thu
28Fri1:1811.31:4710.87:50-0.88:12-0.56:027:22Waning Gibbous28Fri
29Sat2:0710.92:3310.68:37-0.59:00-0.26:037:20Waning Gibbous29Sat
30Sun2:5610.43:1910.49:220.09:490.26:047:19Waning Gibbous30Sun
31Mon3:449.94:0610.010:090.610:400.66:057:17Third Quarter31Mon
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 11:10 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 spring phase. Tonight's moon is 11% 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 near their weekly maximum.

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 Waxing Crescent (11% illuminated). This places Barnstable Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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