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 4h 41m 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 - Dec 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:068.83:139.59:261.59:560.66:484:11First Quarter1Mon
2Tue3:529.04:049.410:171.410:450.66:494:11First Quarter2Tue
3Wed4:419.24:589.311:121.211:370.66:504:11First Quarter3Wed
4Thu5:339.55:559.312:080.96:514:10First Quarter4Thu
5Fri6:2610.06:549.412:300.51:060.46:524:10Waxing Gibbous5Fri
6Sat7:2010.57:549.61:250.32:05-0.26:534:10Waxing Gibbous6Sat
7Sun8:1611.18:529.92:210.03:02-0.86:544:10Waxing Gibbous7Sun
8Mon9:1011.69:4810.23:16-0.33:58-1.36:554:10Full Moon8Mon
9Tue10:0312.010:4210.44:10-0.64:51-1.76:564:10Full Moon9Tue
10Wed10:5612.211:3710.55:03-0.85:44-1.96:574:10Full Moon10Wed
11Thu11:5012.15:56-0.86:36-1.96:584:10Waning Gibbous11Thu
12Fri12:3210.512:4511.86:50-0.77:29-1.76:594:10Waning Gibbous12Fri
13Sat1:2610.41:3911.47:44-0.48:21-1.26:594:11Waning Gibbous13Sat
14Sun2:2010.22:3510.88:39-0.19:14-0.77:004:11Waning Gibbous14Sun
15Mon3:159.93:3210.19:360.410:08-0.17:014:11Third Quarter15Mon
16Tue4:129.74:329.510:350.711:040.47:014:11Third Quarter16Tue
17Wed5:089.55:329.011:361.011:590.97:024:12Third Quarter17Wed
18Thu6:049.46:338.612:371.17:034:12Third Quarter18Thu
19Fri6:599.47:328.412:541.21:361.17:034:12Waning Crescent19Fri
20Sat7:529.48:288.41:471.42:331.07:044:13Waning Crescent20Sat
21Sun8:419.69:178.52:391.43:230.77:044:13Waning Crescent21Sun
22Mon9:259.710:018.63:261.44:070.57:054:14Waning Crescent22Mon
23Tue10:069.910:418.74:091.24:470.37:054:14New Moon23Tue
24Wed10:4510.011:218.84:501.15:260.17:064:15New Moon24Wed
25Thu11:2310.111:598.95:301.06:040.07:064:16New Moon25Thu
26Fri12:0210.16:100.96:42-0.17:064:16New Moon26Fri
27Sat12:379.012:4110.16:500.87:21-0.17:074:17Waxing Crescent27Sat
28Sun1:159.11:2010.07:310.88:00-0.17:074:18Waxing Crescent28Sun
29Mon1:549.22:029.98:140.88:41-0.17:074:18Waxing Crescent29Mon
30Tue2:359.32:469.78:590.79:250.07:074:19Waxing Crescent30Tue
31Wed3:199.53:359.59:490.710:130.17:074:20First Quarter31Wed
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 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