Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 3h 36m at 10:50 pm (0.6 ft)
Next high tide (tomorrow) : 4:37 am (9.4 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Jun 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:409.45:199.011:220.911:421.85:088:09First Quarter1Wed
2Thu5:309.36:079.112:101.05:088:09First Quarter2Thu
3Fri6:229.26:569.412:341.61:001.05:078:10First Quarter3Fri
4Sat7:169.27:469.81:281.31:500.95:078:11Waxing Gibbous4Sat
5Sun8:119.48:3710.32:230.92:430.75:078:12Waxing Gibbous5Sun
6Mon9:079.79:2910.93:180.43:360.45:068:12Waxing Gibbous6Mon
7Tue10:0210.010:2011.44:12-0.34:280.05:068:13Waxing Gibbous7Tue
8Wed10:5510.311:1011.95:05-0.95:20-0.35:068:13Full Moon8Wed
9Thu11:4810.65:57-1.46:11-0.55:068:14Full Moon9Thu
10Fri12:0212.212:4210.76:49-1.77:04-0.65:068:15Full Moon10Fri
11Sat12:5512.21:3710.87:42-1.87:58-0.65:058:15Waning Gibbous11Sat
12Sun1:5012.12:3210.78:35-1.78:52-0.45:058:16Waning Gibbous12Sun
13Mon2:4611.83:2810.69:29-1.49:48-0.15:058:16Waning Gibbous13Mon
14Tue3:4311.34:2610.510:24-0.910:470.25:058:17Third Quarter14Tue
15Wed4:4310.75:2510.311:21-0.411:490.55:058:17Third Quarter15Wed
16Thu5:4510.26:2510.212:190.15:058:17Third Quarter16Thu
17Fri6:479.77:2310.112:510.71:160.55:058:18Third Quarter17Fri
18Sat7:499.48:1910.01:530.82:130.85:068:18Waning Crescent18Sat
19Sun8:509.29:1310.12:540.83:081.15:068:18Waning Crescent19Sun
20Mon9:469.110:0210.13:510.73:591.25:068:19Waning Crescent20Mon
21Tue10:369.110:4610.24:420.64:461.35:068:19Waning Crescent21Tue
22Wed11:209.111:2610.25:260.45:301.35:068:19New Moon22Wed
23Thu12:029.16:070.36:111.35:078:19New Moon23Thu
24Fri12:0510.212:429.16:470.36:511.35:078:19New Moon24Fri
25Sat12:4410.21:219.27:250.37:311.35:078:19New Moon25Sat
26Sun1:2410.22:009.28:040.38:121.35:088:19Waxing Crescent26Sun
27Mon2:0310.12:399.28:430.38:531.35:088:19Waxing Crescent27Mon
28Tue2:4310.03:199.29:230.49:361.45:088:19Waxing Crescent28Tue
29Wed3:249.83:599.310:040.510:211.45:098:19Waxing Crescent29Wed
30Thu4:089.64:439.410:470.611:091.45:098:19First Quarter30Thu
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 1:43 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 66% 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 (66% 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