Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 1:44 am (0.4 ft)
Next high tide : in 3h 31m at 6:50 pm (10.4 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:539.58:319.61:521.12:250.75:387:38Waxing Gibbous1Sun
2Mon8:579.49:269.82:560.93:220.85:367:39Waxing Gibbous2Mon
3Tue9:549.410:1310.03:550.74:140.95:357:40Waxing Gibbous3Tue
4Wed10:439.410:5510.24:460.44:590.95:347:41Waxing Gibbous4Wed
5Thu11:279.411:3410.25:310.25:401.05:337:42Full Moon5Thu
6Fri12:079.36:120.16:191.05:317:43Full Moon6Fri
7Sat12:1110.312:469.36:510.16:581.15:307:44Full Moon7Sat
8Sun12:4910.21:259.17:300.27:361.35:297:45Full Moon8Sun
9Mon1:2710.12:049.08:090.38:161.45:287:46Waning Gibbous9Mon
10Tue2:0610.02:448.98:480.58:571.65:277:47Waning Gibbous10Tue
11Wed2:469.83:268.79:290.69:391.75:257:49Waning Gibbous11Wed
12Thu3:299.64:098.610:130.810:251.95:247:50Waning Gibbous12Thu
13Fri4:149.44:568.610:591.011:151.95:237:51Third Quarter13Fri
14Sat5:049.35:448.711:471.15:227:52Third Quarter14Sat
15Sun5:569.26:349.012:081.812:371.15:217:53Third Quarter15Sun
16Mon6:519.27:249.41:021.51:281.05:207:54Third Quarter16Mon
17Tue7:469.38:1510.01:581.12:200.85:197:55Waning Crescent17Tue
18Wed8:439.69:0710.62:540.63:130.55:187:56Waning Crescent18Wed
19Thu9:399.89:5811.23:50-0.14:050.25:177:57Waning Crescent19Thu
20Fri10:3310.110:4811.74:44-0.74:57-0.15:177:58New Moon20Fri
21Sat11:2710.411:3912.05:36-1.25:49-0.35:167:59New Moon21Sat
22Sun12:2010.56:29-1.66:41-0.45:157:59New Moon22Sun
23Mon12:3212.21:1510.57:21-1.77:34-0.45:148:00Waxing Crescent23Mon
24Tue1:2712.12:1110.48:15-1.68:28-0.25:138:01Waxing Crescent24Tue
25Wed2:2211.83:0710.39:08-1.39:240.15:138:02Waxing Crescent25Wed
26Thu3:1911.34:0410.110:03-0.810:220.45:128:03Waxing Crescent26Thu
27Fri4:1910.75:049.911:00-0.311:230.85:118:04First Quarter27Fri
28Sat5:2110.26:039.811:590.25:118:05First Quarter28Sat
29Sun6:249.77:029.812:261.012:560.65:108:06First Quarter29Sun
30Mon7:279.37:589.81:291.11:531.05:108:07Waxing Gibbous30Mon
31Tue8:289.08:519.82:301.02:471.25:098:07Waxing Gibbous31Tue
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 10:17 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 (32% illuminated). This places Barnstable Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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