Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 1:44 am (0.4 ft)
Next high tide : in 7m at 6:50 pm (10.4 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Jan 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:579.74:199.410:330.510:540.27:084:20First Quarter1Sat
2Sun4:499.95:189.111:310.411:490.47:084:21First Quarter2Sun
3Mon5:4510.16:199.012:320.27:084:22Waxing Gibbous3Mon
4Tue6:4410.47:249.012:470.41:34-0.17:084:23Waxing Gibbous4Tue
5Wed7:4510.78:289.21:480.42:36-0.57:084:24Waxing Gibbous5Wed
6Thu8:4611.09:299.42:480.23:36-0.97:084:25Waxing Gibbous6Thu
7Fri9:4311.310:259.73:46-0.14:32-1.37:084:26Full Moon7Fri
8Sat10:3811.511:199.94:42-0.35:25-1.57:084:27Full Moon8Sat
9Sun11:3211.55:35-0.56:15-1.57:084:28Full Moon9Sun
10Mon12:1110.112:2411.26:27-0.57:04-1.37:074:29Waning Gibbous10Mon
11Tue1:0110.11:1410.97:18-0.47:51-1.07:074:30Waning Gibbous11Tue
12Wed1:4910.02:0410.48:08-0.18:38-0.57:074:31Waning Gibbous12Wed
13Thu2:369.82:539.78:590.39:250.17:064:32Waning Gibbous13Thu
14Fri3:249.63:449.19:510.610:130.67:064:33Third Quarter14Fri
15Sat4:139.34:388.610:461.011:031.17:064:34Third Quarter15Sat
16Sun5:049.15:348.111:411.211:551.57:054:36Third Quarter16Sun
17Mon5:569.06:327.912:381.37:054:37Third Quarter17Mon
18Tue6:508.97:307.812:481.71:361.37:044:38Waning Crescent18Tue
19Wed7:459.18:267.91:411.82:311.27:044:39Waning Crescent19Wed
20Thu8:369.39:168.12:341.73:220.97:034:40Waning Crescent20Thu
21Fri9:239.610:008.43:231.44:060.57:024:42Waning Crescent21Fri
22Sat10:059.910:418.74:081.14:470.27:024:43New Moon22Sat
23Sun10:4510.111:198.94:510.85:26-0.17:014:44New Moon23Sun
24Mon11:2510.311:589.25:320.56:05-0.47:004:45New Moon24Mon
25Tue12:0510.46:140.26:43-0.67:004:46New Moon25Tue
26Wed12:369.512:4610.46:560.07:23-0.76:594:48Waxing Crescent26Wed
27Thu1:159.81:2910.37:40-0.28:04-0.66:584:49Waxing Crescent27Thu
28Fri1:5610.02:1410.18:26-0.28:48-0.56:574:50Waxing Crescent28Fri
29Sat2:4010.23:039.79:16-0.29:36-0.26:564:51First Quarter29Sat
30Sun3:2910.23:579.310:10-0.110:280.16:554:53First Quarter30Sun
31Mon4:2310.24:578.911:090.011:260.46:544:54First 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 10:17 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 Third Quarter (32% illuminated). This places Barnstable Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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