Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 4:07 am (-0.3 ft)
Next high tide : in 1h 21m at 9:12 pm (11.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:448.911:4910.45:510.55:551.25:367:58New Moon1Sat
2Sun12:249.36:310.16:380.85:377:57New Moon2Sun
3Mon12:3110.61:049.77:11-0.17:220.55:387:56New Moon3Mon
4Tue1:1310.71:4410.07:51-0.38:060.25:397:55Waxing Crescent4Tue
5Wed1:5710.62:2510.48:32-0.48:520.05:407:54Waxing Crescent5Wed
6Thu2:4210.53:0810.69:15-0.39:41-0.15:417:52Waxing Crescent6Thu
7Fri3:3010.23:5410.710:01-0.110:330.05:427:51First Quarter7Fri
8Sat4:219.94:4510.710:510.211:290.15:437:50First Quarter8Sat
9Sun5:189.45:4110.711:450.65:447:48First Quarter9Sun
10Mon6:199.16:4010.612:290.212:430.95:457:47First Quarter10Mon
11Tue7:248.97:4410.51:320.31:451.05:467:46Waxing Gibbous11Tue
12Wed8:328.98:4910.62:360.32:481.15:477:44Waxing Gibbous12Wed
13Thu9:389.19:5210.73:400.13:520.95:487:43Waxing Gibbous13Thu
14Fri10:379.410:4910.94:40-0.14:500.65:497:42Full Moon14Fri
15Sat11:299.711:4210.95:33-0.35:440.45:507:40Full Moon15Sat
16Sun12:179.96:21-0.46:350.25:517:39Full Moon16Sun
17Mon12:3110.81:0210.17:06-0.37:220.15:527:37Full Moon17Mon
18Tue1:1810.61:4510.17:49-0.18:080.25:537:36Waning Gibbous18Tue
19Wed2:0210.32:2610.18:300.28:530.45:547:34Waning Gibbous19Wed
20Thu2:469.83:069.99:110.69:370.75:557:33Waning Gibbous20Thu
21Fri3:309.43:489.79:531.110:241.05:567:31Waning Gibbous21Fri
22Sat4:168.94:329.410:371.511:131.35:577:30Third Quarter22Sat
23Sun5:068.45:219.211:241.95:587:28Third Quarter23Sun
24Mon5:598.16:149.112:061.612:152.25:597:26Third Quarter24Mon
25Tue6:557.97:099.01:011.81:092.46:007:25Third Quarter25Tue
26Wed7:537.98:059.11:571.82:042.36:017:23Waning Crescent26Wed
27Thu8:498.08:599.42:531.62:592.16:027:22Waning Crescent27Thu
28Fri9:418.49:509.83:451.33:521.86:037:20Waning Crescent28Fri
29Sat10:268.910:3610.24:320.84:401.36:047:18Waning Crescent29Sat
30Sun11:089.411:2010.55:150.45:260.76:057:17New Moon30Sun
31Mon11:489.95:570.06:110.26:067:15New Moon31Mon
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 12:39 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 Waning 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