Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 8:19 am (0.2 ft)
Next high tide (tomorrow) : in 2h 53m at 1:43 am (10.2 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 5:34 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Nov 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:519.112:5410.27:071.27:410.36:134:36Waning Gibbous1Tue
2Wed1:328.91:3610.17:481.48:250.46:144:35Waning Gibbous2Wed
3Thu2:178.72:2110.08:331.69:140.56:154:34Waning Gibbous3Thu
4Fri3:078.63:139.99:241.710:080.66:164:32Third Quarter4Fri
5Sat4:038.54:129.810:221.711:060.66:174:31Third Quarter5Sat
6Sun5:038.75:159.811:241.66:194:30Third Quarter6Sun
7Mon6:049.16:209.912:060.512:281.36:204:29Waning Crescent7Mon
8Tue7:039.67:2410.11:050.31:310.76:214:28Waning Crescent8Tue
9Wed8:0110.28:2510.32:030.02:320.16:224:27Waning Crescent9Wed
10Thu8:5410.99:2310.52:58-0.23:29-0.66:244:26Waning Crescent10Thu
11Fri9:4411.410:1610.63:50-0.44:23-1.16:254:25New Moon11Fri
12Sat10:3211.711:0810.64:39-0.55:14-1.46:264:24New Moon12Sat
13Sun11:2011.75:28-0.46:04-1.46:274:23New Moon13Sun
14Mon12:0010.312:0911.66:16-0.16:54-1.26:284:22Waxing Crescent14Mon
15Tue12:5110.012:5811.27:050.37:44-0.86:304:21Waxing Crescent15Tue
16Wed1:429.61:4710.77:540.88:34-0.36:314:20Waxing Crescent16Wed
17Thu2:349.12:3910.28:451.39:260.36:324:19Waxing Crescent17Thu
18Fri3:288.83:339.69:381.710:210.86:334:18First Quarter18Fri
19Sat4:248.54:319.210:362.011:171.26:344:18First Quarter19Sat
20Sun5:218.45:308.911:352.16:364:17First Quarter20Sun
21Mon6:158.56:278.712:111.412:332.16:374:16First Quarter21Mon
22Tue7:068.77:228.71:031.51:291.86:384:16Waxing Gibbous22Tue
23Wed7:549.08:148.81:521.52:211.56:394:15Waxing Gibbous23Wed
24Thu8:379.49:018.92:371.43:091.16:404:14Waxing Gibbous24Thu
25Fri9:179.79:449.03:201.33:520.76:414:14Waxing Gibbous25Fri
26Sat9:5410.010:249.04:001.14:330.46:434:13Full Moon26Sat
27Sun10:3110.211:059.14:391.15:130.16:444:13Full Moon27Sun
28Mon11:0910.411:469.05:191.05:54-0.16:454:12Full Moon28Mon
29Tue11:4810.55:591.06:36-0.26:464:12Full Moon29Tue
30Wed12:289.012:3010.56:421.07:20-0.26:474:12Waning Gibbous30Wed
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 5:01 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 spring phase. Tonight's moon is 96% 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 Waning Gibbous (96% 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