Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 8:33 pm (-0.2 ft)
Next high tide : in 2h 39m at 2:09 pm (10.5 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Nov 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:2510.09:489.73:250.73:530.56:134:36Waxing Gibbous1Sat
2Sun10:0510.210:309.74:080.74:360.36:144:35Full Moon2Sun
3Mon10:4210.211:099.64:470.75:160.26:154:34Full Moon3Mon
4Tue11:1810.311:479.55:250.85:540.16:164:32Full Moon4Tue
5Wed11:5510.26:030.96:330.26:184:31Full Moon5Wed
6Thu12:269.312:3210.16:421.07:120.36:194:30Waning Gibbous6Thu
7Fri1:069.21:1110.07:211.27:520.56:204:29Waning Gibbous7Fri
8Sat1:469.01:519.88:021.48:340.66:214:28Waning Gibbous8Sat
9Sun2:288.82:349.68:451.69:180.86:224:27Waning Gibbous9Sun
10Mon3:138.73:209.49:311.810:060.96:244:26Third Quarter10Mon
11Tue4:028.64:119.310:221.810:571.06:254:25Third Quarter11Tue
12Wed4:538.85:059.311:171.711:490.96:264:24Third Quarter12Wed
13Thu5:459.16:029.412:131.46:274:23Third Quarter13Thu
14Fri6:389.56:599.712:420.71:090.96:294:22Waning Crescent14Fri
15Sat7:3110.17:5610.01:360.32:060.36:304:21Waning Crescent15Sat
16Sun8:2310.88:5210.42:290.03:02-0.46:314:20Waning Crescent16Sun
17Mon9:1411.49:4510.73:22-0.53:55-1.16:324:19New Moon17Mon
18Tue10:0412.010:3810.94:13-0.84:47-1.76:334:18New Moon18Tue
19Wed10:5412.311:3111.05:03-1.05:39-2.06:354:18New Moon19Wed
20Thu11:4612.35:55-1.06:31-2.06:364:17Waxing Crescent20Thu
21Fri12:2510.912:3912.26:47-0.97:24-1.86:374:16Waxing Crescent21Fri
22Sat1:2010.71:3411.87:40-0.68:18-1.46:384:16Waxing Crescent22Sat
23Sun2:1710.42:3011.28:36-0.19:13-0.96:394:15Waxing Crescent23Sun
24Mon3:1510.03:3010.69:340.410:11-0.36:404:14First Quarter24Mon
25Tue4:169.74:3210.010:350.811:110.26:424:14First Quarter25Tue
26Wed5:189.65:369.611:381.06:434:13First Quarter26Wed
27Thu6:179.56:399.212:100.512:411.16:444:13Waxing Gibbous27Thu
28Fri7:159.57:399.11:070.81:421.06:454:12Waxing Gibbous28Fri
29Sat8:089.68:349.02:021.02:390.96:464:12Waxing Gibbous29Sat
30Sun8:549.89:229.12:521.03:290.66:474:12Waxing Gibbous30Sun
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 5:21 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 11% 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 (11% 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