Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 1h 47m at 10:01 pm (0.6 ft)
Next high tide (tomorrow) : 3:48 am (9.7 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:2510.51:019.57:05-0.17:120.85:347:59New Moon1Wed
2Thu1:0710.41:419.57:460.07:550.95:357:58Waxing Crescent2Thu
3Fri1:4910.22:219.58:250.28:371.05:367:57Waxing Crescent3Fri
4Sat2:3010.02:599.49:040.49:201.15:377:56Waxing Crescent4Sat
5Sun3:119.73:399.49:440.710:031.25:397:55Waxing Crescent5Sun
6Mon3:549.44:219.310:261.010:501.45:407:54First Quarter6Mon
7Tue4:409.05:059.311:101.311:391.55:417:52First Quarter7Tue
8Wed5:288.75:529.311:561.55:427:51First Quarter8Wed
9Thu6:208.56:419.312:301.512:451.75:437:50First Quarter9Thu
10Fri7:138.47:319.51:221.51:361.75:447:48Waxing Gibbous10Fri
11Sat8:088.48:249.82:171.32:291.65:457:47Waxing Gibbous11Sat
12Sun9:048.79:1810.23:120.93:231.35:467:46Waxing Gibbous12Sun
13Mon9:579.010:1010.74:050.44:170.95:477:44Waxing Gibbous13Mon
14Tue10:489.511:0011.24:56-0.25:080.45:487:43Full Moon14Tue
15Wed11:3710.011:5111.65:46-0.75:59-0.15:497:42Full Moon15Wed
16Thu12:2610.56:34-1.16:50-0.65:507:40Full Moon16Thu
17Fri12:4211.81:1610.97:23-1.47:42-0.85:517:39Waning Gibbous17Fri
18Sat1:3411.82:0611.18:12-1.48:34-1.05:527:37Waning Gibbous18Sat
19Sun2:2711.62:5711.29:02-1.29:28-0.95:537:36Waning Gibbous19Sun
20Mon3:2111.23:5011.29:53-0.910:24-0.65:547:34Waning Gibbous20Mon
21Tue4:1810.64:4611.010:47-0.411:23-0.35:557:33Third Quarter21Tue
22Wed5:1810.15:4410.711:440.15:567:31Third Quarter22Wed
23Thu6:219.66:4510.412:250.012:430.65:577:30Third Quarter23Thu
24Fri7:269.27:4710.21:280.31:431.05:587:28Waning Crescent24Fri
25Sat8:329.18:5010.12:310.42:451.25:597:27Waning Crescent25Sat
26Sun9:349.19:4810.23:340.53:441.26:007:25Waning Crescent26Sun
27Mon10:289.210:3910.24:300.44:381.16:017:23Waning Crescent27Mon
28Tue11:149.311:2410.25:180.35:261.06:027:22New Moon28Tue
29Wed11:569.56:010.26:090.86:037:20New Moon29Wed
30Thu12:0510.212:349.66:400.36:500.76:047:18New Moon30Thu
31Fri12:4510.21:119.67:170.37:300.76:057:17New Moon31Fri
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 12:54 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 transitional phase. Tonight's moon is 75% 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 Waning Gibbous (75% 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