Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, July 20, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 11:40 pm (0.9 ft)
Next high tide : in 14m at 5:08 pm (10.0 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Feb 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:1110.92:3210.98:37-1.19:05-1.26:534:55Waxing Crescent1Thu
2Fri3:0410.63:2810.39:33-0.79:59-0.66:524:57First Quarter2Fri
3Sat4:0010.34:289.610:33-0.210:550.16:514:58First Quarter3Sat
4Sun4:589.95:319.011:340.211:530.66:504:59First Quarter4Sun
5Mon5:589.66:358.612:370.56:495:01First Quarter5Mon
6Tue6:589.47:398.412:521.01:400.66:485:02Waxing Gibbous6Tue
7Wed7:589.48:388.41:511.22:410.66:475:03Waxing Gibbous7Wed
8Thu8:529.59:298.62:481.23:340.56:455:04Waxing Gibbous8Thu
9Fri9:399.610:138.73:381.14:190.36:445:06Waxing Gibbous9Fri
10Sat10:219.810:528.94:220.94:580.16:435:07Full Moon10Sat
11Sun11:009.911:299.15:030.75:350.06:425:08Full Moon11Sun
12Mon11:379.95:420.56:11-0.16:405:09Full Moon12Mon
13Tue12:059.212:149.96:210.46:47-0.16:395:11Full Moon13Tue
14Wed12:419.312:529.87:000.47:240.06:385:12Waning Gibbous14Wed
15Thu1:169.41:299.77:390.48:010.16:375:13Waning Gibbous15Thu
16Fri1:529.42:089.48:190.48:400.36:355:14Waning Gibbous16Fri
17Sat2:309.42:509.29:020.59:210.56:345:16Waning Gibbous17Sat
18Sun3:129.43:368.99:480.610:070.76:325:17Third Quarter18Sun
19Mon3:589.44:288.710:400.610:580.86:315:18Third Quarter19Mon
20Tue4:509.55:258.511:360.611:540.96:305:19Third Quarter20Tue
21Wed5:479.76:258.612:360.46:285:21Third Quarter21Wed
22Thu6:4710.07:288.912:530.81:370.16:275:22Waning Crescent22Thu
23Fri7:4910.48:309.31:540.42:38-0.46:255:23Waning Crescent23Fri
24Sat8:4910.99:289.92:55-0.13:35-1.06:245:24Waning Crescent24Sat
25Sun9:4711.410:2210.53:52-0.74:29-1.56:225:26New Moon25Sun
26Mon10:4111.711:1410.94:47-1.25:21-1.96:215:27New Moon26Mon
27Tue11:3511.85:40-1.66:11-2.06:195:28New Moon27Tue
28Wed12:0511.212:2811.76:33-1.77:00-1.96:175:29Waxing Crescent28Wed
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 8:24 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 neap phase. Tonight's moon is 42% 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 minimum.

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 (42% illuminated). This places Barnstable Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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