Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 4h 54m at 4:01 pm (0.8 ft)
Next high tide : 9:59 pm (11.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:1010.05:3710.711:390.25:357:59First Quarter1Mon
2Tue6:119.56:3510.612:180.112:360.65:367:58First Quarter2Tue
3Wed7:159.17:3510.41:200.31:341.05:377:57Waxing Gibbous3Wed
4Thu8:218.88:3710.42:240.42:341.25:387:56Waxing Gibbous4Thu
5Fri9:268.89:3810.43:280.43:361.35:397:55Waxing Gibbous5Fri
6Sat10:268.910:3410.44:280.34:331.35:407:53Waxing Gibbous6Sat
7Sun11:189.011:2410.55:220.25:261.25:417:52Full Moon7Sun
8Mon12:059.16:090.16:141.15:427:51Full Moon8Mon
9Tue12:1010.412:499.26:530.16:591.05:437:50Full Moon9Tue
10Wed12:5410.31:299.37:330.27:421.05:447:48Full Moon10Wed
11Thu1:3610.12:079.48:110.48:241.05:457:47Waning Gibbous11Thu
12Fri2:169.92:449.48:490.69:051.15:467:46Waning Gibbous12Fri
13Sat2:579.63:219.49:270.99:481.25:477:44Waning Gibbous13Sat
14Sun3:399.24:009.310:061.210:331.45:487:43Waning Gibbous14Sun
15Mon4:238.84:439.210:481.611:201.65:497:41Third Quarter15Mon
16Tue5:118.45:289.111:331.95:507:40Third Quarter16Tue
17Wed6:028.16:189.112:121.712:222.15:517:38Third Quarter17Wed
18Thu6:577.97:109.21:051.71:132.35:527:37Third Quarter18Thu
19Fri7:547.88:059.42:011.62:082.35:537:35Waning Crescent19Fri
20Sat8:528.09:019.72:581.43:042.05:547:34Waning Crescent20Sat
21Sun9:478.49:5510.23:540.94:001.65:557:32Waning Crescent21Sun
22Mon10:378.910:4710.74:450.44:521.05:567:31New Moon22Mon
23Tue11:259.511:3611.25:33-0.25:430.45:577:29New Moon23Tue
24Wed12:1210.16:20-0.76:33-0.25:587:28New Moon24Wed
25Thu12:2611.412:5910.67:07-1.07:24-0.65:597:26New Moon25Thu
26Fri1:1711.51:4611.07:53-1.18:15-0.96:007:25Waxing Crescent26Fri
27Sat2:0811.32:3411.38:40-1.09:07-0.96:017:23Waxing Crescent27Sat
28Sun3:0010.93:2411.39:29-0.610:01-0.76:027:21Waxing Crescent28Sun
29Mon3:5410.44:1611.110:20-0.110:58-0.36:037:20First Quarter29Mon
30Tue4:539.85:1310.711:150.511:590.16:047:18First Quarter30Tue
31Wed5:569.26:1410.412:141.06:057:17First Quarter31Wed
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 7:00 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 6% 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 (6% 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