Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 2:48 am (0.3 ft)
Next high tide : in 5h 09m at 7:52 pm (10.6 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Sep 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:259.74:4310.410:450.711:250.46:087:13First Quarter1Mon
2Tue5:239.15:399.911:401.36:097:12First Quarter2Tue
3Wed6:258.66:389.612:260.812:381.86:107:10First Quarter3Wed
4Thu7:288.37:399.31:281.21:372.16:117:08Waxing Gibbous4Thu
5Fri8:318.28:409.32:311.32:372.26:127:07Waxing Gibbous5Fri
6Sat9:288.39:369.43:311.33:342.16:137:05Waxing Gibbous6Sat
7Sun10:178.510:239.64:221.24:251.86:147:03Waxing Gibbous7Sun
8Mon10:588.811:059.85:051.05:091.56:157:02Waxing Gibbous8Mon
9Tue11:369.111:449.95:420.85:501.26:167:00Full Moon9Tue
10Wed12:119.46:170.66:290.96:176:58Full Moon10Wed
11Thu12:2210.012:459.66:520.67:070.76:186:56Full Moon11Thu
12Fri12:599.91:189.87:260.67:450.66:196:55Full Moon12Fri
13Sat1:369.81:529.98:020.78:240.56:206:53Waning Gibbous13Sat
14Sun2:149.62:2810.08:380.89:040.56:216:51Waning Gibbous14Sun
15Mon2:549.33:0610.09:171.09:470.66:226:50Waning Gibbous15Mon
16Tue3:379.03:4810.09:581.310:360.76:236:48Third Quarter16Tue
17Wed4:258.74:379.910:461.511:300.96:246:46Third Quarter17Wed
18Thu5:208.55:349.911:411.76:256:44Third Quarter18Thu
19Fri6:228.46:3610.012:300.912:421.76:266:43Third Quarter19Fri
20Sat7:268.57:4210.11:330.81:461.56:276:41Waning Crescent20Sat
21Sun8:318.98:4810.52:360.52:511.16:286:39Waning Crescent21Sun
22Mon9:329.59:5010.93:370.13:540.56:296:37Waning Crescent22Mon
23Tue10:2810.210:4711.24:33-0.44:52-0.16:306:36New Moon23Tue
24Wed11:1910.811:4111.35:25-0.75:46-0.76:316:34New Moon24Wed
25Thu12:0711.26:14-0.96:38-1.06:326:32New Moon25Thu
26Fri12:3311.212:5511.47:02-0.87:29-1.16:336:30New Moon26Fri
27Sat1:2511.01:4211.47:49-0.58:19-1.06:346:29Waxing Crescent27Sat
28Sun2:1510.52:3011.18:360.09:09-0.66:356:27Waxing Crescent28Sun
29Mon3:069.93:1810.79:240.610:010.06:366:25Waxing Crescent29Mon
30Tue3:599.34:0910.210:141.210:550.56:376:24First Quarter30Tue
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 11:20 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 22% 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 Crescent (22% 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