Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 4h 36m at 1:43 pm (2.0 ft)
Next high tide : 7:45 pm (9.4 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Sep 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:458.68:0210.01:541.02:071.46:067:15Waning Crescent1Mon
2Tue8:439.09:0010.42:510.63:051.06:077:14Waning Crescent2Tue
3Wed9:399.69:5610.93:470.14:030.46:087:12Waning Crescent3Wed
4Thu10:3110.310:5011.44:40-0.54:57-0.36:097:10New Moon4Thu
5Fri11:2110.911:4311.75:30-1.05:50-0.96:107:09New Moon5Fri
6Sat12:1111.56:19-1.36:43-1.46:117:07New Moon6Sat
7Sun12:3511.71:0111.87:09-1.47:35-1.66:127:05Waxing Crescent7Sun
8Mon1:2811.61:5211.97:58-1.38:27-1.56:137:04Waxing Crescent8Mon
9Tue2:2211.22:4311.78:48-1.09:21-1.26:147:02Waxing Crescent9Tue
10Wed3:1610.73:3711.49:40-0.410:17-0.76:157:00Waxing Crescent10Wed
11Thu4:1310.14:3310.910:350.211:16-0.26:166:58First Quarter11Thu
12Fri5:159.65:3410.411:340.86:176:57First Quarter12Fri
13Sat6:199.16:3710.012:180.312:351.26:186:55First Quarter13Sat
14Sun7:248.97:419.81:220.71:371.56:196:53Waxing Gibbous14Sun
15Mon8:278.98:449.72:250.92:391.56:206:52Waxing Gibbous15Mon
16Tue9:259.09:409.73:240.93:381.46:216:50Waxing Gibbous16Tue
17Wed10:139.210:279.84:160.94:291.26:226:48Waxing Gibbous17Wed
18Thu10:559.511:099.95:000.85:140.96:236:46Full Moon18Thu
19Fri11:329.711:489.95:380.75:540.76:256:45Full Moon19Fri
20Sat12:079.86:140.76:330.56:266:43Full Moon20Sat
21Sun12:269.812:429.96:500.77:110.56:276:41Full Moon21Sun
22Mon1:039.71:1710.07:260.87:490.56:286:39Waning Gibbous22Mon
23Tue1:419.51:539.98:020.98:280.56:296:38Waning Gibbous23Tue
24Wed2:209.32:309.98:401.19:090.76:306:36Waning Gibbous24Wed
25Thu3:009.13:109.89:201.39:520.86:316:34Waning Gibbous25Thu
26Fri3:438.83:539.710:031.510:391.06:326:32Third Quarter26Fri
27Sat4:308.64:419.610:511.711:311.06:336:31Third Quarter27Sat
28Sun5:228.55:369.711:441.76:346:29Third Quarter28Sun
29Mon6:198.66:349.812:261.012:421.66:356:27Third Quarter29Mon
30Tue7:178.97:3410.01:230.81:421.26:366:26Waning Crescent30Tue
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 4:44 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 71% 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 Waxing Gibbous (71% 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