Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 4h 37m at 9:48 pm (0.3 ft)
Next high tide (tomorrow) : 3:44 am (10.4 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Feb 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:2210.07:028.912:190.31:030.16:524:57Waning Crescent1Wed
2Thu7:259.98:088.81:200.62:080.16:514:58Waning Crescent2Thu
3Fri8:2610.09:098.92:210.73:090.06:504:59Waning Crescent3Fri
4Sat9:2110.110:009.03:190.74:03-0.26:485:01Waning Crescent4Sat
5Sun10:1010.210:469.14:100.64:50-0.36:475:02New Moon5Sun
6Mon10:5410.211:279.24:560.45:32-0.36:465:03New Moon6Mon
7Tue11:3510.25:390.46:11-0.36:455:04New Moon7Tue
8Wed12:069.312:1410.16:200.36:49-0.26:445:06New Moon8Wed
9Thu12:439.312:539.97:010.47:26-0.16:435:07Waxing Crescent9Thu
10Fri1:209.31:329.77:410.58:040.26:415:08Waxing Crescent10Fri
11Sat1:579.22:129.48:210.68:430.46:405:10Waxing Crescent11Sat
12Sun2:369.12:549.09:040.89:240.76:395:11Waxing Crescent12Sun
13Mon3:179.03:398.69:501.010:081.16:375:12First Quarter13Mon
14Tue4:028.94:298.310:391.210:561.36:365:13First Quarter14Tue
15Wed4:508.95:228.111:321.211:471.46:355:15First Quarter15Wed
16Thu5:429.06:188.012:271.16:335:16First Quarter16Thu
17Fri6:369.27:168.212:411.41:240.96:325:17Waxing Gibbous17Fri
18Sat7:339.68:138.51:371.22:210.46:305:18Waxing Gibbous18Sat
19Sun8:2910.19:089.12:340.83:16-0.26:295:20Waxing Gibbous19Sun
20Mon9:2210.79:589.73:280.24:07-0.86:285:21Full Moon20Mon
21Tue10:1411.210:4710.34:21-0.54:56-1.46:265:22Full Moon21Tue
22Wed11:0411.611:3610.85:12-1.05:45-1.86:255:23Full Moon22Wed
23Thu11:5511.76:03-1.56:33-2.06:235:24Full Moon23Thu
24Fri12:2611.212:4711.76:54-1.77:22-1.96:225:26Waning Gibbous24Fri
25Sat1:1511.31:4011.37:46-1.78:12-1.66:205:27Waning Gibbous25Sat
26Sun2:0611.22:3310.88:39-1.49:03-1.16:195:28Waning Gibbous26Sun
27Mon2:5911.03:3010.19:35-1.09:58-0.46:175:29Third Quarter27Mon
28Tue3:5510.64:329.510:35-0.410:560.26:155:30Third Quarter28Tue
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 12:46 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 23% 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 Crescent (23% 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