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 : 12:55 pm (1.1 ft)
Next high tide : in 2h 20m at 6:30 am (8.9 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 - Apr 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:029.63:418.69:450.79:591.65:236:06Third Quarter1Sun
2Mon3:529.24:348.210:371.110:521.95:216:07Third Quarter2Mon
3Tue4:478.95:308.111:321.411:482.15:206:08Third Quarter3Tue
4Wed5:448.86:268.112:261.55:186:09Third Quarter4Wed
5Thu6:418.77:218.312:442.01:201.55:166:10Waning Crescent5Thu
6Fri7:378.98:118.71:401.82:121.35:156:11Waning Crescent6Fri
7Sat8:299.18:569.12:331.42:591.05:136:13Waning Crescent7Sat
8Sun9:169.49:379.63:210.93:430.75:116:14Waning Crescent8Sun
9Mon9:599.710:1610.14:060.44:240.45:106:15New Moon9Mon
10Tue10:419.910:5510.54:49-0.15:050.15:086:16New Moon10Tue
11Wed11:2310.111:3510.95:32-0.55:460.05:066:17New Moon11Wed
12Thu12:0610.16:16-0.86:29-0.15:056:18New Moon12Thu
13Fri12:1811.112:5210.17:01-1.07:14-0.15:036:19Waxing Crescent13Fri
14Sat1:0311.21:409.97:48-0.98:020.15:026:20Waxing Crescent14Sat
15Sun1:5211.12:319.78:39-0.88:530.35:006:21Waxing Crescent15Sun
16Mon2:4410.83:279.59:33-0.59:500.64:596:22First Quarter16Mon
17Tue3:4310.54:289.410:32-0.210:520.84:576:23First Quarter17Tue
18Wed4:4610.25:329.411:330.111:560.84:556:25First Quarter18Wed
19Thu5:5310.06:379.612:350.24:546:26Waxing Gibbous19Thu
20Fri7:009.97:399.91:010.71:370.24:526:27Waxing Gibbous20Fri
21Sat8:0510.08:3710.22:060.42:350.14:516:28Waxing Gibbous21Sat
22Sun9:0510.19:2810.63:060.03:290.14:496:29Waxing Gibbous22Sun
23Mon9:5810.110:1510.84:00-0.44:190.04:486:30Full Moon23Mon
24Tue10:4610.110:5810.94:49-0.65:040.14:466:31Full Moon24Tue
25Wed11:3210.011:4010.85:35-0.75:480.34:456:32Full Moon25Wed
26Thu12:169.86:19-0.66:300.54:446:33Full Moon26Thu
27Fri12:2210.612:589.57:02-0.37:120.84:426:34Waning Gibbous27Fri
28Sat1:0310.41:419.37:450.07:551.14:416:35Waning Gibbous28Sat
29Sun1:4610.13:249.09:280.39:391.45:397:37Waning Gibbous29Sun
30Mon3:309.74:108.710:130.710:261.75:387:38Waning Gibbous30Mon
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 9:42 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 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