Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 2h 48m at 10:50 pm (0.6 ft)
Next high tide (tomorrow) : 4:37 am (9.4 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:38 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:399.64:178.810:210.810:351.75:377:39Waxing Crescent1Sun
2Mon4:259.45:068.611:091.011:251.95:357:40First Quarter2Mon
3Tue5:159.15:578.611:591.25:347:41First Quarter3Tue
4Wed6:089.06:488.612:172.012:501.35:337:42First Quarter4Wed
5Thu7:029.07:408.91:111.91:411.25:327:43First Quarter5Thu
6Fri7:579.18:309.32:051.62:331.05:307:44Waxing Gibbous6Fri
7Sat8:519.49:199.92:591.13:230.75:297:45Waxing Gibbous7Sat
8Sun9:439.710:0510.53:520.54:130.45:287:46Waxing Gibbous8Sun
9Mon10:3310.110:5111.14:42-0.15:000.05:277:47Full Moon9Mon
10Tue11:2110.411:3711.65:31-0.85:47-0.45:267:48Full Moon10Tue
11Wed12:1010.76:20-1.36:35-0.65:257:49Full Moon11Wed
12Thu12:2511.91:0110.87:09-1.67:25-0.65:247:50Full Moon12Thu
13Fri1:1512.01:5410.78:00-1.78:16-0.55:227:51Waning Gibbous13Fri
14Sat2:0711.92:4710.68:52-1.59:09-0.35:217:52Waning Gibbous14Sat
15Sun3:0111.63:4410.49:46-1.210:050.05:207:53Waning Gibbous15Sun
16Mon3:5811.24:4310.110:42-0.811:050.45:207:54Third Quarter16Mon
17Tue4:5910.75:4610.011:42-0.45:197:55Third Quarter17Tue
18Wed6:0410.26:489.912:080.712:430.05:187:56Third Quarter18Wed
19Thu7:099.97:509.91:120.81:430.35:177:57Waning Crescent19Thu
20Fri8:149.78:4910.12:160.82:420.55:167:58Waning Crescent20Fri
21Sat9:169.69:4310.23:180.63:380.65:157:59Waning Crescent21Sat
22Sun10:119.610:3010.34:140.44:290.75:148:00Waning Crescent22Sun
23Mon11:009.611:1210.45:040.25:150.85:148:01New Moon23Mon
24Tue11:449.511:5210.45:490.15:570.95:138:02New Moon24Tue
25Wed12:259.56:300.06:371.05:128:03New Moon25Wed
26Thu12:3010.41:059.47:100.17:171.15:118:04New Moon26Thu
27Fri1:0910.31:459.37:490.17:571.25:118:05Waxing Crescent27Fri
28Sat1:4810.22:259.28:290.38:381.45:108:06Waxing Crescent28Sat
29Sun2:2810.03:069.19:090.49:201.55:108:06Waxing Crescent29Sun
30Mon3:109.83:489.09:510.610:041.75:098:07Waxing Crescent30Mon
31Tue3:539.64:338.910:350.810:511.85:098:08Waxing Crescent31Tue
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 1:43 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 66% 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 (66% 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