Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, July 27, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 3h 49m at 5:09 am (1.0 ft)
Next high tide : 11:02 am (8.4 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:30 am
Moon phase : Full Moon (96% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Oct 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:229.712:3610.06:450.87:070.46:376:23New Moon1Thu
2Fri12:599.61:1010.17:200.97:460.46:386:22Waxing Crescent2Fri
3Sat1:379.41:4510.17:571.08:250.46:396:20Waxing Crescent3Sat
4Sun2:169.22:2310.18:351.29:070.56:406:18Waxing Crescent4Sun
5Mon2:588.93:0510.09:161.49:530.66:426:17Waxing Crescent5Mon
6Tue3:438.63:529.910:021.610:440.86:436:15First Quarter6Tue
7Wed4:368.44:469.910:551.811:420.96:446:13First Quarter7Wed
8Thu5:358.45:489.811:551.86:456:12First Quarter8Thu
9Fri6:378.56:529.912:430.812:591.76:466:10First Quarter9Fri
10Sat7:408.97:5810.11:440.72:031.36:476:08Waxing Gibbous10Sat
11Sun8:419.59:0110.42:440.33:060.76:486:07Waxing Gibbous11Sun
12Mon9:3810.210:0110.73:41-0.14:060.06:496:05Waxing Gibbous12Mon
13Tue10:2910.910:5511.04:35-0.45:02-0.76:506:04Full Moon13Tue
14Wed11:1811.411:4811.05:25-0.65:54-1.16:516:02Full Moon14Wed
15Thu12:0611.76:13-0.66:45-1.46:536:00Full Moon15Thu
16Fri12:3910.812:5311.77:01-0.47:35-1.36:545:59Waning Gibbous16Fri
17Sat1:3010.51:4111.47:48-0.18:25-1.06:555:57Waning Gibbous17Sat
18Sun2:2110.02:3011.08:360.49:15-0.56:565:56Waning Gibbous18Sun
19Mon3:129.53:2010.59:261.010:080.26:575:54Waning Gibbous19Mon
20Tue4:069.04:149.910:181.511:030.76:585:53Third Quarter20Tue
21Wed5:038.65:129.411:142.07:005:51Third Quarter21Wed
22Thu6:038.36:139.112:021.212:142.27:015:50Third Quarter22Thu
23Fri7:018.37:138.91:001.51:142.37:025:48Third Quarter23Fri
24Sat7:578.48:108.91:561.62:122.17:035:47Waning Crescent24Sat
25Sun7:478.78:049.01:481.52:071.86:044:45Waning Crescent25Sun
26Mon8:329.18:519.12:341.42:561.56:054:44Waning Crescent26Mon
27Tue9:129.59:349.33:161.33:411.06:074:43Waning Crescent27Tue
28Wed9:499.810:139.33:551.14:210.76:084:41New Moon28Wed
29Thu10:2410.110:529.34:331.05:000.46:094:40New Moon29Thu
30Fri10:5910.311:319.35:101.05:400.26:104:39New Moon30Fri
31Sat11:3610.45:481.06:200.16:114:37New Moon31Sat
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 8:05 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 spring phase. Tonight's moon is 96% 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 near their weekly maximum.

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 Full Moon (96% illuminated). This places Barnstable Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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