Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 8:54 pm (0.0 ft)
Next high tide : in 5h 44m at 2:36 pm (10.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Nov 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:259.16:429.412:200.812:421.66:134:35Waning Crescent1Sat
2Sun7:239.27:419.31:180.91:421.56:144:34Waning Crescent2Sun
3Mon8:159.48:359.32:131.02:381.26:164:33Waning Crescent3Mon
4Tue9:009.69:219.43:011.03:261.06:174:32Waning Crescent4Tue
5Wed9:409.810:039.53:440.94:090.76:184:30Waning Crescent5Wed
6Thu10:1710.010:419.54:220.94:480.46:194:29New Moon6Thu
7Fri10:5210.111:209.44:590.85:260.36:214:28New Moon7Fri
8Sat11:2810.211:589.45:370.96:050.26:224:27New Moon8Sat
9Sun12:0410.26:140.96:430.26:234:26New Moon9Sun
10Mon12:379.212:4210.16:531.17:230.26:244:25Waxing Crescent10Mon
11Tue1:169.11:2110.07:331.28:040.36:254:24Waxing Crescent11Tue
12Wed1:588.92:029.98:151.48:480.46:274:23Waxing Crescent12Wed
13Thu2:428.82:489.89:011.59:360.56:284:22Waxing Crescent13Thu
14Fri3:308.83:399.79:521.510:280.56:294:21First Quarter14Fri
15Sat4:238.94:369.710:481.511:230.56:304:20First Quarter15Sat
16Sun5:199.25:359.811:471.26:324:20First Quarter16Sun
17Mon6:169.66:369.912:190.312:470.86:334:19Waxing Gibbous17Mon
18Tue7:1210.17:3710.21:160.11:470.26:344:18Waxing Gibbous18Tue
19Wed8:0810.88:3710.52:12-0.22:46-0.56:354:17Waxing Gibbous19Wed
20Thu9:0211.49:3310.73:07-0.63:42-1.16:364:17Full Moon20Thu
21Fri9:5411.810:2710.94:00-0.84:36-1.66:384:16Full Moon21Fri
22Sat10:4412.111:2110.94:52-0.95:28-1.96:394:15Full Moon22Sat
23Sun11:3512.15:42-0.96:20-1.96:404:15Full Moon23Sun
24Mon12:1410.712:2711.96:34-0.67:11-1.66:414:14Waning Gibbous24Mon
25Tue1:0810.41:1911.57:25-0.38:03-1.26:424:14Waning Gibbous25Tue
26Wed2:0210.12:1210.98:170.28:56-0.66:434:13Waning Gibbous26Wed
27Thu2:569.73:0710.39:110.79:50-0.16:444:13Third Quarter27Thu
28Fri3:539.34:059.710:081.210:460.46:454:12Third Quarter28Fri
29Sat4:509.15:049.311:081.511:420.86:474:12Third Quarter29Sat
30Sun5:479.06:039.012:071.66:484:11Third Quarter30Sun
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 5:45 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 spring phase. Tonight's moon is 14% 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 Waxing Crescent (14% 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