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 4h 57m 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 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:169.24:419.610:471.011:171.15:357:59First Quarter1Sat
2Sun5:049.05:269.811:331.25:357:58First Quarter2Sun
3Mon5:568.76:1710.012:101.012:231.35:367:57First Quarter3Mon
4Tue6:538.67:1210.21:060.91:171.45:377:56Waxing Gibbous4Tue
5Wed7:548.68:1110.52:050.72:161.35:397:55Waxing Gibbous5Wed
6Thu8:588.79:1310.83:070.43:171.15:407:54Waxing Gibbous6Thu
7Fri10:009.110:1311.24:08-0.14:180.75:417:52Waxing Gibbous7Fri
8Sat10:589.511:1111.65:06-0.65:160.35:427:51Full Moon8Sat
9Sun11:5310.06:00-1.06:12-0.25:437:50Full Moon9Sun
10Mon12:0711.712:4710.46:52-1.27:07-0.55:447:48Full Moon10Mon
11Tue1:0211.71:3910.77:43-1.28:01-0.65:457:47Waning Gibbous11Tue
12Wed1:5711.52:2910.88:32-1.08:54-0.55:467:46Waning Gibbous12Wed
13Thu2:5011.03:1910.89:21-0.69:48-0.35:477:44Waning Gibbous13Thu
14Fri3:4410.44:0910.510:100.010:430.15:487:43Third Quarter14Fri
15Sat4:399.75:0210.211:020.611:410.55:497:42Third Quarter15Sat
16Sun5:379.15:569.911:551.35:507:40Third Quarter16Sun
17Mon6:378.66:539.612:410.912:511.85:517:39Third Quarter17Mon
18Tue7:388.27:519.41:411.21:482.15:527:37Waning Crescent18Tue
19Wed8:408.18:509.42:431.32:452.25:537:36Waning Crescent19Wed
20Thu9:378.29:449.53:421.33:412.15:547:34Waning Crescent20Thu
21Fri10:268.410:329.74:331.14:321.95:557:33Waning Crescent21Fri
22Sat11:098.611:149.85:170.95:161.65:567:31New Moon22Sat
23Sun11:488.911:5310.05:550.75:571.45:577:30New Moon23Sun
24Mon12:249.16:310.66:371.15:587:28New Moon24Mon
25Tue12:3110.012:599.47:060.57:160.95:597:27New Moon25Tue
26Wed1:0810.01:349.67:410.47:550.86:007:25Waxing Crescent26Wed
27Thu1:469.92:089.78:160.58:340.76:017:23Waxing Crescent27Thu
28Fri2:249.72:449.98:530.69:150.66:027:22Waxing Crescent28Fri
29Sat3:049.53:2210.09:310.89:590.76:037:20Waxing Crescent29Sat
30Sun3:479.24:0410.010:131.010:480.76:047:19First Quarter30Sun
31Mon4:368.94:5210.011:011.311:420.86:057:17First 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 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