Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 4h 06m at 8:33 pm (-0.2 ft)
Next high tide (tomorrow) : 2:29 am (10.6 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Jun 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:1110.04:519.410:560.411:161.25:088:08First Quarter1Sun
2Mon5:039.95:429.611:470.45:088:09First Quarter2Mon
3Tue5:589.86:359.912:111.112:400.35:078:10First Quarter3Tue
4Wed6:569.87:3010.41:090.71:350.25:078:11Waxing Gibbous4Wed
5Thu7:579.98:2610.82:080.32:310.15:078:11Waxing Gibbous5Thu
6Fri8:5810.19:2211.33:08-0.23:28-0.15:068:12Waxing Gibbous6Fri
7Sat9:5710.310:1711.84:06-0.74:24-0.35:068:13Waxing Gibbous7Sat
8Sun10:5410.611:1112.15:02-1.25:18-0.55:068:13Full Moon8Sun
9Mon11:5010.75:56-1.56:11-0.65:068:14Full Moon9Mon
10Tue12:0412.112:4510.76:50-1.77:04-0.55:068:14Full Moon10Tue
11Wed12:5712.01:4010.67:42-1.67:57-0.35:058:15Waning Gibbous11Wed
12Thu1:5111.72:3310.48:34-1.38:500.05:058:15Waning Gibbous12Thu
13Fri2:4411.33:2610.29:25-0.89:430.45:058:16Waning Gibbous13Fri
14Sat3:3810.84:209.910:17-0.310:380.85:058:16Waning Gibbous14Sat
15Sun4:3310.25:149.711:100.211:351.15:058:17Third Quarter15Sun
16Mon5:299.76:089.512:030.75:058:17Third Quarter16Mon
17Tue6:269.27:019.512:331.412:561.15:058:17Third Quarter17Tue
18Wed7:238.97:529.51:291.41:481.45:058:18Third Quarter18Wed
19Thu8:198.78:429.52:251.42:391.55:068:18Waning Crescent19Thu
20Fri9:138.79:309.73:191.33:281.65:068:18Waning Crescent20Fri
21Sat10:028.810:149.94:091.14:151.55:068:19Waning Crescent21Sat
22Sun10:488.910:5610.14:540.84:591.45:068:19Waning Crescent22Sun
23Mon11:309.011:3510.25:360.65:411.35:068:19New Moon23Mon
24Tue12:119.16:170.36:221.25:078:19New Moon24Tue
25Wed12:1510.312:529.26:570.27:041.15:078:19New Moon25Wed
26Thu12:5510.41:329.37:370.07:461.05:078:19New Moon26Thu
27Fri1:3610.52:139.58:18-0.18:290.95:088:19Waxing Crescent27Fri
28Sat2:1810.52:549.69:00-0.19:140.85:088:19Waxing Crescent28Sat
29Sun3:0210.43:389.89:44-0.110:020.85:098:19Waxing Crescent29Sun
30Mon3:4910.34:2510.010:30-0.110:530.75:098:19First Quarter30Mon
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 11:31 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 spring phase. Tonight's moon is 11% 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 Waxing Crescent (11% 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