Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 12m at 2:59 pm (1.0 ft)
Next high tide : 8:57 pm (10.8 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Mar 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:3710.05:228.411:310.311:451.16:165:30Third Quarter1Thu
2Fri5:429.96:328.212:370.46:155:31Waning Crescent2Fri
3Sat6:519.87:448.412:511.21:450.36:135:33Waning Crescent3Sat
4Sun8:0110.08:508.81:591.02:500.06:125:34Waning Crescent4Sun
5Mon9:0510.39:479.33:040.73:49-0.36:105:35Waning Crescent5Mon
6Tue10:0110.510:379.74:020.24:40-0.66:085:36New Moon6Tue
7Wed10:5210.711:2210.14:55-0.25:26-0.76:075:37New Moon7Wed
8Thu11:4010.65:43-0.56:10-0.66:055:38New Moon8Thu
9Fri12:0510.212:2510.46:29-0.66:51-0.46:035:39Waxing Crescent9Fri
10Sat12:4510.21:0810.07:14-0.57:310.06:025:41Waxing Crescent10Sat
11Sun1:2410.11:519.57:57-0.28:120.56:005:42Waxing Crescent11Sun
12Mon2:049.92:349.08:410.28:531.05:585:43Waxing Crescent12Mon
13Tue2:469.53:208.59:270.69:381.55:575:44First Quarter13Tue
14Wed3:319.24:118.010:171.110:271.95:555:45First Quarter14Wed
15Thu4:228.85:067.611:111.511:212.25:535:46First Quarter15Thu
16Fri5:188.66:057.512:091.75:525:47First Quarter16Fri
17Sat6:178.57:057.512:172.41:071.75:505:49First Quarter17Sat
18Sun7:178.78:027.81:152.32:041.55:485:50Waxing Gibbous18Sun
19Mon8:139.08:518.32:122.02:551.15:475:51Waxing Gibbous19Mon
20Tue9:029.49:348.83:041.53:400.75:455:52Waxing Gibbous20Tue
21Wed9:469.810:139.43:510.94:210.35:435:53Full Moon21Wed
22Thu10:2810.110:5110.04:350.35:00-0.15:415:54Full Moon22Thu
23Fri11:1010.311:2910.45:18-0.35:40-0.35:405:55Full Moon23Fri
24Sat11:5310.46:02-0.76:20-0.45:385:56Full Moon24Sat
25Sun12:0910.812:3710.36:46-1.07:03-0.45:365:57Waning Gibbous25Sun
26Mon12:5211.01:2310.17:32-1.07:47-0.25:355:59Waning Gibbous26Mon
27Tue1:3711.02:139.78:21-0.98:350.25:336:00Waning Gibbous27Tue
28Wed2:2610.83:079.29:14-0.59:280.65:316:01Third Quarter28Wed
29Thu3:2110.54:078.810:13-0.110:281.05:296:02Third Quarter29Thu
30Fri4:2310.15:158.511:170.311:341.35:286:03Third Quarter30Fri
31Sat5:319.86:258.512:240.55:266:04Third Quarter31Sat
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 5:58 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 13% 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 Waning Crescent (13% 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