Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 7:52 pm (1.0 ft)
Next high tide : in 2h 47m at 1:37 pm (9.3 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:519.510:0710.63:580.44:140.66:376:24Waning Crescent1Sun
2Mon10:3910.310:5811.04:47-0.25:06-0.26:386:22New Moon2Mon
3Tue11:2511.011:4811.35:34-0.65:56-0.96:396:21New Moon3Tue
4Wed12:1111.56:21-0.96:47-1.36:406:19New Moon4Wed
5Thu12:3911.312:5811.97:08-1.07:37-1.66:416:17Waxing Crescent5Thu
6Fri1:3011.11:4711.97:56-0.88:29-1.56:426:16Waxing Crescent6Fri
7Sat2:2310.72:3811.78:45-0.49:22-1.16:436:14Waxing Crescent7Sat
8Sun3:1810.23:3211.39:370.210:19-0.66:456:12Waxing Crescent8Sun
9Mon4:169.64:3010.710:340.811:190.06:466:11First Quarter9Mon
10Tue5:209.15:3410.211:351.36:476:09First Quarter10Tue
11Wed6:288.86:419.812:240.512:401.76:486:07First Quarter11Wed
12Thu7:368.77:499.61:300.81:461.86:496:06Waxing Gibbous12Thu
13Fri8:408.98:549.62:350.92:511.76:506:04Waxing Gibbous13Fri
14Sat9:359.19:509.63:340.93:511.46:516:02Waxing Gibbous14Sat
15Sun10:229.410:379.74:240.94:411.16:526:01Waxing Gibbous15Sun
16Mon11:019.611:189.75:050.85:250.86:535:59Full Moon16Mon
17Tue11:369.811:579.65:420.86:040.66:555:58Full Moon17Tue
18Wed12:109.96:170.96:420.56:565:56Full Moon18Wed
19Thu12:349.512:4310.06:521.07:190.46:575:55Full Moon19Thu
20Fri1:129.31:189.97:281.27:570.56:585:53Waning Gibbous20Fri
21Sat1:509.11:549.88:051.48:360.76:595:52Waning Gibbous21Sat
22Sun2:298.82:329.78:431.79:160.97:005:50Waning Gibbous22Sun
23Mon3:108.53:129.59:232.010:001.17:025:49Waning Gibbous23Mon
24Tue3:558.23:589.310:082.210:491.37:035:47Third Quarter24Tue
25Wed4:458.14:499.210:582.311:431.37:045:46Third Quarter25Wed
26Thu5:398.05:469.211:542.37:055:44Third Quarter26Thu
27Fri6:368.26:459.412:391.312:532.17:065:43Third Quarter27Fri
28Sat7:328.77:459.61:351.01:531.77:075:42Waning Crescent28Sat
29Sun7:269.37:4510.01:300.71:521.06:094:40Waning Crescent29Sun
30Mon8:1910.18:4110.42:240.22:490.26:104:39Waning Crescent30Mon
31Tue9:0810.99:3510.83:15-0.23:43-0.66:114:38New Moon31Tue
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 4:44 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 spring phase. Tonight's moon is 96% 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 Waning Gibbous (96% 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