Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 9:22 pm (0.1 ft)
Next high tide : in 47m at 2:54 pm (10.4 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:379.712:4910.27:000.77:270.35:375:24Waning Gibbous1Sun
2Mon1:179.51:2810.27:390.88:090.35:385:23Waning Gibbous2Mon
3Tue1:599.32:1010.28:211.08:540.45:395:21Waning Gibbous3Tue
4Wed2:449.22:5610.19:071.19:440.55:405:19Third Quarter4Wed
5Thu3:359.03:4910.19:591.310:390.65:415:18Third Quarter5Thu
6Fri4:319.04:4710.110:571.311:380.55:425:16Third Quarter6Fri
7Sat5:319.25:4910.111:571.15:435:14Third Quarter7Sat
8Sun6:319.56:5210.312:370.312:590.75:445:13Waning Crescent8Sun
9Mon7:3210.07:5510.61:360.02:010.25:455:11Waning Crescent9Mon
10Tue8:3010.68:5510.92:34-0.33:01-0.45:475:09Waning Crescent10Tue
11Wed9:2411.29:5111.23:29-0.73:57-0.95:485:08New Moon11Wed
12Thu10:1511.610:4411.34:21-0.94:50-1.45:495:06New Moon12Thu
13Fri11:0411.911:3611.15:11-1.05:42-1.55:505:04New Moon13Fri
14Sat11:5411.86:00-0.86:32-1.55:515:03Waxing Crescent14Sat
15Sun12:2810.912:4311.66:49-0.57:23-1.25:525:01Waxing Crescent15Sun
16Mon1:1910.51:3311.27:39-0.18:13-0.75:535:00Waxing Crescent16Mon
17Tue2:1110.02:2310.78:280.59:05-0.15:544:58Waxing Crescent17Tue
18Wed3:049.53:1610.19:201.09:590.55:564:56First Quarter18Wed
19Thu4:009.14:129.710:161.510:550.95:574:55First Quarter19Thu
20Fri4:588.85:119.311:141.811:521.25:584:53First Quarter20Fri
21Sat5:558.76:099.112:121.95:594:52First Quarter21Sat
22Sun6:508.87:069.012:471.41:091.86:004:50Waxing Gibbous22Sun
23Mon7:419.08:009.11:391.42:031.66:014:49Waxing Gibbous23Mon
24Tue8:289.38:489.32:281.32:531.36:024:48Waxing Gibbous24Tue
25Wed9:109.69:329.43:131.13:380.96:044:46Waxing Gibbous25Wed
26Thu9:499.910:129.53:530.94:200.56:054:45Full Moon26Thu
27Fri10:2610.210:519.64:320.85:000.26:064:43Full Moon27Fri
28Sat11:0210.411:319.65:110.75:400.06:074:42Full Moon28Sat
29Sun11:4010.55:500.66:20-0.16:084:41Full Moon29Sun
30Mon12:119.612:1910.66:300.67:02-0.26:104:39Waning Gibbous30Mon
31Tue12:539.51:0110.67:120.77:46-0.26:114:38Waning 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 6:08 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 spring phase. Tonight's moon is 18% 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 maximum.

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 Waxing Crescent (18% illuminated). This places Barnstable Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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