Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 1h 39m at 9:42 pm (1.4 ft)
Next high tide (tomorrow) : 3:30 am (9.8 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:318.56:549.312:401.612:551.75:357:59First Quarter1Sat
2Sun7:258.47:449.31:331.61:461.85:367:58Waxing Gibbous2Sun
3Mon8:208.38:369.52:261.52:381.85:377:57Waxing Gibbous3Mon
4Tue9:148.59:269.83:191.23:291.65:387:56Waxing Gibbous4Tue
5Wed10:048.810:1410.24:100.84:191.35:397:54Waxing Gibbous5Wed
6Thu10:519.111:0010.64:580.35:070.95:407:53Full Moon6Thu
7Fri11:369.511:4611.05:43-0.15:540.55:417:52Full Moon7Fri
8Sat12:209.96:28-0.56:410.15:427:51Full Moon8Sat
9Sun12:3211.21:0610.37:14-0.97:29-0.35:437:49Full Moon9Sun
10Mon1:2011.41:5310.77:59-1.08:19-0.55:447:48Waning Gibbous10Mon
11Tue2:1011.32:4010.98:46-1.09:09-0.65:457:47Waning Gibbous11Tue
12Wed3:0011.13:3011.09:35-0.910:02-0.55:467:45Waning Gibbous12Wed
13Thu3:5410.84:2211.010:26-0.610:59-0.35:477:44Third Quarter13Thu
14Fri4:5110.35:1910.811:21-0.211:59-0.15:487:43Third Quarter14Fri
15Sat5:529.96:1810.712:190.25:497:41Third Quarter15Sat
16Sun6:559.57:1910.61:010.01:190.55:507:40Waning Crescent16Sun
17Mon8:019.38:2210.52:040.12:200.75:517:38Waning Crescent17Mon
18Tue9:069.39:2410.53:070.13:210.85:527:37Waning Crescent18Tue
19Wed10:069.510:2110.64:070.04:190.75:537:35Waning Crescent19Wed
20Thu10:599.611:1110.75:02-0.15:120.65:547:34New Moon20Thu
21Fri11:469.711:5810.65:50-0.26:010.55:557:32New Moon21Fri
22Sat12:309.86:34-0.26:460.45:567:31New Moon22Sat
23Sun12:4210.51:119.97:16-0.17:290.45:577:29New Moon23Sun
24Mon1:2410.31:509.87:550.18:110.55:587:28Waxing Crescent24Mon
25Tue2:0510.12:289.88:350.48:530.75:597:26Waxing Crescent25Tue
26Wed2:469.83:079.79:140.79:360.96:007:24Waxing Crescent26Wed
27Thu3:289.43:489.69:551.010:201.16:017:23Waxing Crescent27Thu
28Fri4:129.14:329.410:381.311:081.36:027:21First Quarter28Fri
29Sat5:008.75:199.311:251.611:591.56:047:20First Quarter29Sat
30Sun5:518.56:099.212:141.86:057:18First Quarter30Sun
31Mon6:458.37:019.312:521.51:061.96:067:16First 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 12:36 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 81% 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 (81% 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