Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 6h 47m at 12:43 am (0.5 ft)
Next high tide (tomorrow) : 6:30 am (8.9 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:3311.24:0710.810:08-0.810:36-0.35:367:58Third Quarter1Sun
2Mon4:3110.65:0310.711:02-0.311:360.05:377:57Third Quarter2Mon
3Tue5:3110.06:0110.511:580.25:387:56Third Quarter3Tue
4Wed6:339.56:5910.312:370.312:550.75:397:55Third Quarter4Wed
5Thu7:379.17:5810.11:390.51:531.15:407:54Waning Crescent5Thu
6Fri8:418.98:5710.02:420.62:521.45:417:52Waning Crescent6Fri
7Sat9:418.89:5210.03:430.63:491.55:427:51Waning Crescent7Sat
8Sun10:348.910:4110.14:380.54:411.45:437:50Waning Crescent8Sun
9Mon11:208.911:2510.15:250.55:271.35:447:48New Moon9Mon
10Tue12:019.16:070.46:101.25:457:47New Moon10Tue
11Wed12:0610.212:409.26:460.46:501.15:467:46New Moon11Wed
12Thu12:4510.11:179.27:230.47:301.15:477:44New Moon12Thu
13Fri1:2410.11:549.38:000.48:101.05:487:43Waxing Crescent13Fri
14Sat2:039.92:309.48:360.58:501.15:497:42Waxing Crescent14Sat
15Sun2:419.73:079.49:140.79:311.15:507:40Waxing Crescent15Sun
16Mon3:219.53:459.49:520.910:141.25:517:39Waxing Crescent16Mon
17Tue4:049.24:269.410:331.111:011.25:527:37First Quarter17Tue
18Wed4:498.95:119.511:181.311:511.25:537:36First Quarter18Wed
19Thu5:408.75:599.612:071.55:547:34First Quarter19Thu
20Fri6:348.66:529.812:451.112:591.55:557:33First Quarter20Fri
21Sat7:318.67:4810.11:410.91:551.45:567:31Waxing Gibbous21Sat
22Sun8:318.88:4710.52:400.62:531.25:577:30Waxing Gibbous22Sun
23Mon9:319.29:4611.03:390.13:520.75:587:28Waxing Gibbous23Mon
24Tue10:279.710:4211.54:35-0.44:490.25:597:27Full Moon24Tue
25Wed11:2110.311:3711.85:29-0.95:44-0.46:007:25Full Moon25Wed
26Thu12:1310.76:20-1.36:38-0.86:017:23Full Moon26Thu
27Fri12:3111.91:0511.17:11-1.57:31-1.16:027:22Waning Gibbous27Fri
28Sat1:2511.81:5711.38:01-1.48:25-1.16:037:20Waning Gibbous28Sat
29Sun2:2011.52:4811.38:51-1.19:18-0.96:047:18Waning Gibbous29Sun
30Mon3:1411.03:4011.19:42-0.610:14-0.56:057:17Waning Gibbous30Mon
31Tue4:1010.44:3410.710:350.011:12-0.16:077:15Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447335)

Common Questions About Barnstable Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Barnstable Harbor, MA today?

Slack tide in Barnstable Harbor, MA is approximately 3:36 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 neap phase. Tonight's moon is 44% 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 Third Quarter (44% 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