Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 6h 23m at 12:55 pm (1.1 ft)
Next high tide : 6:50 pm (10.4 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:1910.61:3411.47:39-0.88:13-1.57:084:20Waning Gibbous1Sun
2Mon2:1210.52:2910.98:34-0.69:05-1.07:084:21Waning Gibbous2Mon
3Tue3:0610.33:2610.29:30-0.29:59-0.47:084:22Third Quarter3Tue
4Wed4:0110.14:259.510:290.210:540.27:084:23Third Quarter4Wed
5Thu4:589.85:269.011:300.511:500.77:084:24Third Quarter5Thu
6Fri5:559.66:288.512:320.77:084:25Third Quarter6Fri
7Sat6:529.57:308.312:461.11:330.87:084:26Waning Crescent7Sat
8Sun7:489.58:288.31:421.32:330.87:084:27Waning Crescent8Sun
9Mon8:409.59:198.32:361.43:250.67:084:28Waning Crescent9Mon
10Tue9:269.710:038.53:261.34:100.47:074:29Waning Crescent10Tue
11Wed10:089.810:448.64:101.24:500.37:074:30New Moon11Wed
12Thu10:489.911:228.84:521.05:280.17:074:31New Moon12Thu
13Fri11:2610.05:320.96:050.07:074:32New Moon13Fri
14Sat12:008.912:0410.06:110.86:42-0.17:064:33New Moon14Sat
15Sun12:369.012:429.96:510.77:18-0.17:064:34Waxing Crescent15Sun
16Mon1:129.11:209.87:310.77:560.07:054:35Waxing Crescent16Mon
17Tue1:499.21:599.68:110.78:340.17:054:36Waxing Crescent17Tue
18Wed2:279.32:429.48:550.79:160.37:044:38Waxing Crescent18Wed
19Thu3:089.43:289.19:420.710:010.57:044:39First Quarter19Thu
20Fri3:549.54:208.810:340.710:510.67:034:40First Quarter20Fri
21Sat4:459.75:178.611:310.611:460.77:034:41First Quarter21Sat
22Sun5:419.96:188.612:300.47:024:42First Quarter22Sun
23Mon6:4010.17:228.712:440.71:320.07:014:44Waxing Gibbous23Mon
24Tue7:4210.58:259.11:460.52:34-0.47:014:45Waxing Gibbous24Tue
25Wed8:4311.09:259.52:470.13:33-1.07:004:46Waxing Gibbous25Wed
26Thu9:4211.410:2110.03:46-0.44:29-1.46:594:47Full Moon26Thu
27Fri10:3711.711:1510.44:42-0.85:21-1.86:584:49Full Moon27Fri
28Sat11:3111.75:36-1.16:12-1.96:574:50Full Moon28Sat
29Sun12:0710.712:2411.66:29-1.37:01-1.86:564:51Waning Gibbous29Sun
30Mon12:5710.81:1611.27:21-1.27:49-1.46:564:52Waning Gibbous30Mon
31Tue1:4710.72:0810.68:12-0.98:38-0.96:554:54Waning Gibbous31Tue
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 3:52 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 32% 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 (32% 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