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 53m at 10:19 am (0.5 ft)
Next high tide : 4:12 pm (10.1 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 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:399.16:169.012:161.25:088:09Third Quarter1Wed
2Thu6:318.97:049.212:431.81:051.35:088:10Third Quarter2Thu
3Fri7:248.97:529.51:351.61:541.35:078:11Waning Crescent3Fri
4Sat8:189.08:419.92:281.32:441.25:078:12Waning Crescent4Sat
5Sun9:119.29:3010.43:210.83:350.95:078:12Waning Crescent5Sun
6Mon10:029.510:1710.94:120.34:250.65:068:13Waning Crescent6Mon
7Tue10:529.811:0511.35:02-0.35:140.35:068:14New Moon7Tue
8Wed11:4110.111:5311.75:51-0.86:030.05:068:14New Moon8Wed
9Thu12:3210.36:41-1.26:53-0.25:068:15New Moon9Thu
10Fri12:4411.91:2410.57:31-1.47:45-0.45:068:15Waxing Crescent10Fri
11Sat1:3611.92:1710.68:22-1.58:38-0.35:068:16Waxing Crescent11Sat
12Sun2:3011.73:1110.69:14-1.49:33-0.25:068:16Waxing Crescent12Sun
13Mon3:2611.44:0710.610:08-1.110:300.05:068:17First Quarter13Mon
14Tue4:2410.95:0510.511:03-0.711:310.25:068:17First Quarter14Tue
15Wed5:2510.56:0510.512:01-0.35:068:17First Quarter15Wed
16Thu6:2910.07:0410.412:330.412:590.15:068:18First Quarter16Thu
17Fri7:329.68:0210.41:360.51:570.55:068:18Waxing Gibbous17Fri
18Sat8:369.49:0010.42:380.52:550.75:068:18Waxing Gibbous18Sat
19Sun9:369.39:5310.53:380.43:500.95:068:19Waxing Gibbous19Sun
20Mon10:309.310:4110.54:330.24:411.05:068:19Waxing Gibbous20Mon
21Tue11:189.311:2410.55:220.15:281.05:078:19Full Moon21Tue
22Wed12:029.36:060.16:111.15:078:19Full Moon22Wed
23Thu12:0610.412:449.36:480.16:531.15:078:19Full Moon23Thu
24Fri12:4710.41:249.37:280.17:351.25:088:19Full Moon24Fri
25Sat1:2710.32:049.38:070.28:161.25:088:20Waning Gibbous25Sat
26Sun2:0710.12:439.28:460.48:581.35:088:20Waning Gibbous26Sun
27Mon2:489.93:239.29:260.59:411.45:098:20Waning Gibbous27Mon
28Tue3:309.74:049.210:070.710:261.55:098:20Waning Gibbous28Tue
29Wed4:149.44:479.310:500.911:141.65:108:19Third Quarter29Wed
30Thu5:019.25:329.311:351.05:108:19Third 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 1:15 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 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