Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 5h 16m at 1:35 am (1.3 ft)
Next high tide (tomorrow) : 7:30 am (8.3 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:199.46:3810.212:170.112:371.06:386:23First Quarter1Fri
2Sat7:259.37:459.91:210.41:421.16:396:21Waxing Gibbous2Sat
3Sun8:299.48:499.92:240.62:461.16:406:19Waxing Gibbous3Sun
4Mon9:279.69:469.93:230.63:450.96:416:17Waxing Gibbous4Mon
5Tue10:169.810:359.94:160.64:380.76:426:16Waxing Gibbous5Tue
6Wed10:5810.011:199.95:010.65:230.56:436:14Full Moon6Wed
7Thu11:3710.111:589.85:410.66:040.36:446:12Full Moon7Thu
8Fri12:1310.26:190.66:440.26:456:11Full Moon8Fri
9Sat12:379.712:4910.26:560.77:220.36:476:09Full Moon9Sat
10Sun1:159.61:2510.17:340.98:010.46:486:08Waning Gibbous10Sun
11Mon1:549.42:0310.08:121.18:410.56:496:06Waning Gibbous11Mon
12Tue2:349.12:429.88:511.39:220.76:506:04Waning Gibbous12Tue
13Wed3:158.93:239.69:331.610:061.06:516:03Waning Gibbous13Wed
14Thu4:008.74:089.510:181.810:531.16:526:01Third Quarter14Thu
15Fri4:488.54:589.311:071.911:451.26:536:00Third Quarter15Fri
16Sat5:408.55:519.312:011.96:545:58Third Quarter16Sat
17Sun6:338.76:479.412:381.212:561.76:565:56Third Quarter17Sun
18Mon7:279.07:449.71:311.01:531.36:575:55Waning Crescent18Mon
19Tue8:209.68:4110.02:250.62:500.86:585:53Waning Crescent19Tue
20Wed9:1210.39:3710.43:180.23:460.06:595:52Waning Crescent20Wed
21Thu10:0311.010:3010.84:10-0.34:39-0.77:005:50New Moon21Thu
22Fri10:5211.611:2211.15:01-0.75:31-1.37:015:49New Moon22Fri
23Sat11:4012.15:50-1.06:22-1.87:025:47New Moon23Sat
24Sun12:1411.212:3112.36:40-1.17:14-1.97:045:46New Moon24Sun
25Mon1:0711.11:2312.37:31-1.08:06-1.87:055:45Waxing Crescent25Mon
26Tue2:0110.92:1612.08:23-0.79:00-1.57:065:43Waxing Crescent26Tue
27Wed2:5710.53:1111.59:17-0.29:55-1.07:075:42Waxing Crescent27Wed
28Thu3:5410.14:1010.910:130.310:53-0.47:085:41First Quarter28Thu
29Fri4:569.75:1210.311:140.811:550.17:105:39First Quarter29Fri
30Sat5:599.56:179.912:181.17:115:38First Quarter30Sat
31Sun6:029.46:229.612:560.512:221.26:124:37First Quarter31Sun
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 4:32 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 transitional phase. Tonight's moon is 62% 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 First Quarter (62% 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