Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 43m at 12:43 am (0.5 ft)
Next high tide (tomorrow) : 6:30 am (8.9 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:498.87:1010.31:030.81:151.15:357:59Waning Crescent1Wed
2Thu7:498.98:0910.62:010.52:141.05:367:58Waning Crescent2Thu
3Fri8:519.19:1011.03:020.23:140.75:377:57Waning Crescent3Fri
4Sat9:529.610:0911.44:01-0.34:140.25:387:55Waning Crescent4Sat
5Sun10:4910.111:0611.84:58-0.85:11-0.35:397:54New Moon5Sun
6Mon11:4310.65:51-1.26:07-0.75:407:53New Moon6Mon
7Tue12:0111.912:3711.06:43-1.57:01-1.05:417:52New Moon7Tue
8Wed12:5611.91:2911.27:34-1.57:55-1.05:427:50Waxing Crescent8Wed
9Thu1:5011.62:2011.38:24-1.38:48-0.95:437:49Waxing Crescent9Thu
10Fri2:4411.23:1111.19:13-0.89:41-0.65:447:48Waxing Crescent10Fri
11Sat3:3710.64:0310.810:04-0.310:36-0.15:457:46First Quarter11Sat
12Sun4:339.94:5610.410:560.411:340.45:467:45First Quarter12Sun
13Mon5:319.35:5210.111:511.05:477:44First Quarter13Mon
14Tue6:318.86:509.812:340.812:471.45:487:42First Quarter14Tue
15Wed7:318.57:489.61:341.11:441.75:497:41Waxing Gibbous15Wed
16Thu8:328.48:459.52:341.22:411.85:507:39Waxing Gibbous16Thu
17Fri9:288.59:389.63:321.23:361.85:517:38Waxing Gibbous17Fri
18Sat10:178.710:259.84:221.04:261.65:527:37Waxing Gibbous18Sat
19Sun10:598.911:079.95:050.85:111.35:537:35Full Moon19Sun
20Mon11:389.211:4710.05:440.75:521.15:547:34Full Moon20Mon
21Tue12:159.46:210.56:320.95:557:32Full Moon21Tue
22Wed12:2510.112:519.66:570.47:110.75:567:30Full Moon22Wed
23Thu1:0310.01:269.87:330.47:510.65:577:29Waning Gibbous23Thu
24Fri1:419.92:029.98:100.48:300.55:587:27Waning Gibbous24Fri
25Sat2:209.82:3910.08:480.59:120.56:007:26Waning Gibbous25Sat
26Sun3:019.63:1810.19:270.69:560.56:017:24Waning Gibbous26Sun
27Mon3:449.44:0210.110:110.810:450.66:027:23Third Quarter27Mon
28Tue4:339.14:5110.110:591.011:400.66:037:21Third Quarter28Tue
29Wed5:288.95:4710.211:541.16:047:19Third Quarter29Wed
30Thu6:278.96:4710.312:380.612:531.16:057:18Third Quarter30Thu
31Fri7:309.07:4910.51:390.51:541.06:067:16Waning Crescent31Fri
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 3:36 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 neap phase. Tonight's moon is 44% 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 minimum.

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 (44% illuminated). This places Barnstable Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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