Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 3h 39m at 10:01 pm (0.6 ft)
Next high tide (tomorrow) : 3:48 am (9.7 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:359.71:499.97:580.88:210.56:376:24Waxing Crescent1Mon
2Tue2:139.52:259.98:361.09:010.66:386:22Waxing Crescent2Tue
3Wed2:539.23:049.89:151.29:430.86:396:20Waxing Crescent3Wed
4Thu3:359.03:459.79:561.510:280.96:406:19Waxing Crescent4Thu
5Fri4:208.74:329.610:421.711:191.06:426:17First Quarter5Fri
6Sat5:118.65:249.611:341.86:436:15First Quarter6Sat
7Sun6:078.66:209.712:131.012:301.76:446:13First Quarter7Sun
8Mon7:048.87:209.91:100.91:291.56:456:12Waxing Gibbous8Mon
9Tue8:039.28:2010.32:080.62:281.06:466:10Waxing Gibbous9Tue
10Wed9:009.89:2010.73:050.13:280.46:476:09Waxing Gibbous10Wed
11Thu9:5510.510:1611.24:01-0.44:25-0.36:486:07Waxing Gibbous11Thu
12Fri10:4611.211:1011.54:53-0.95:19-1.06:496:05Full Moon12Fri
13Sat11:3611.75:44-1.26:11-1.56:506:04Full Moon13Sat
14Sun12:0311.612:2612.06:34-1.37:03-1.86:516:02Full Moon14Sun
15Mon12:5611.51:1612.17:23-1.27:55-1.76:536:00Waning Gibbous15Mon
16Tue1:5011.22:0811.98:14-0.88:48-1.56:545:59Waning Gibbous16Tue
17Wed2:4410.83:0011.59:05-0.39:42-1.06:555:57Waning Gibbous17Wed
18Thu3:4010.23:5510.99:590.310:38-0.46:565:56Third Quarter18Thu
19Fri4:399.74:5310.310:550.911:380.26:575:54Third Quarter19Fri
20Sat5:419.25:559.911:561.46:585:53Third Quarter20Sat
21Sun6:449.06:599.512:400.612:581.66:595:51Third Quarter21Sun
22Mon7:458.98:019.41:410.92:001.77:015:50Waning Crescent22Mon
23Tue8:429.08:599.42:391.02:591.67:025:48Waning Crescent23Tue
24Wed9:339.39:509.43:331.03:531.37:035:47Waning Crescent24Wed
25Thu10:169.510:349.54:190.94:391.07:045:45Waning Crescent25Thu
26Fri10:559.811:149.64:590.85:210.77:055:44New Moon26Fri
27Sat11:3010.011:539.65:360.85:590.57:075:43New Moon27Sat
28Sun11:0510.111:309.65:130.85:380.36:084:41New Moon28Sun
29Mon11:4010.25:500.86:160.26:094:40New Moon29Mon
30Tue12:089.512:1610.26:270.96:550.26:104:39Waxing Crescent30Tue
31Wed12:479.312:5410.17:051.07:350.36:114:37Waxing Crescent31Wed
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 12:54 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 75% 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 Waning Gibbous (75% 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