Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 10:50 pm (0.6 ft)
Next high tide : in 1h 22m at 4:12 pm (10.1 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 - Dec 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:5110.510:239.53:520.54:28-0.26:494:11Full Moon1Thu
2Fri10:3310.511:069.54:360.55:12-0.36:504:11Full Moon2Fri
3Sat11:1310.511:489.45:180.65:53-0.36:514:11Full Moon3Sat
4Sun11:5210.45:590.76:34-0.26:524:11Full Moon4Sun
5Mon12:299.212:3210.26:400.97:140.06:534:10Waning Gibbous5Mon
6Tue1:099.11:1210.07:211.17:540.26:544:10Waning Gibbous6Tue
7Wed1:509.01:549.88:031.38:350.46:544:10Waning Gibbous7Wed
8Thu2:328.82:379.58:471.59:190.76:554:10Waning Gibbous8Thu
9Fri3:168.73:239.29:341.610:040.96:564:10Third Quarter9Fri
10Sat4:028.74:139.010:241.710:521.06:574:10Third Quarter10Sat
11Sun4:518.85:058.811:161.711:421.06:584:10Third Quarter11Sun
12Mon5:409.05:588.812:101.56:594:11Third Quarter12Mon
13Tue6:299.36:528.912:321.01:031.17:004:11Waning Crescent13Tue
14Wed7:199.77:479.11:230.81:580.67:004:11Waning Crescent14Wed
15Thu8:0910.38:419.42:140.52:520.07:014:11Waning Crescent15Thu
16Fri8:5910.99:339.83:060.23:43-0.77:024:11Waning Crescent16Fri
17Sat9:4811.410:2410.13:56-0.24:34-1.27:024:12New Moon17Sat
18Sun10:3711.811:1510.44:47-0.65:24-1.77:034:12New Moon18Sun
19Mon11:2812.05:37-0.86:15-1.97:044:13New Moon19Mon
20Tue12:0810.512:2112.06:29-0.97:07-1.97:044:13Waxing Crescent20Tue
21Wed1:0110.61:1511.87:22-0.87:59-1.87:054:13Waxing Crescent21Wed
22Thu1:5510.52:1111.48:17-0.68:52-1.47:054:14Waxing Crescent22Thu
23Fri2:5110.43:0910.89:14-0.39:48-0.97:064:14First Quarter23Fri
24Sat3:5010.24:1010.210:150.010:46-0.47:064:15First Quarter24Sat
25Sun4:5010.05:149.711:180.311:450.17:064:16First Quarter25Sun
26Mon5:519.96:199.312:220.57:074:16First Quarter26Mon
27Tue6:519.97:239.012:440.41:250.57:074:17Waxing Gibbous27Tue
28Wed7:509.98:248.91:420.72:270.47:074:18Waxing Gibbous28Wed
29Thu8:4310.09:188.92:380.83:230.27:074:18Waxing Gibbous29Thu
30Fri9:3110.010:059.03:290.94:110.17:084:19Waxing Gibbous30Fri
31Sat10:1310.14:140.84:540.07:084:20Full Moon31Sat
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 7:31 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 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