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 : 1:55 pm (1.1 ft)
Next high tide : in 4h 06m at 7:34 am (8.7 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 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:268.77:4410.41:340.51:471.36:087:13Waning Crescent1Sun
2Mon8:338.98:5010.62:390.32:511.16:097:11Waning Crescent2Mon
3Tue9:389.29:5310.93:420.03:550.86:107:10Waning Crescent3Tue
4Wed10:369.710:5211.14:41-0.34:540.36:117:08New Moon4Wed
5Thu11:2910.111:4611.25:34-0.65:49-0.16:127:06New Moon5Thu
6Fri12:1910.46:24-0.76:41-0.36:137:05New Moon6Fri
7Sat12:3711.11:0610.67:11-0.67:31-0.46:147:03New Moon7Sat
8Sun1:2710.81:5110.67:56-0.38:19-0.36:157:01Waxing Crescent8Sun
9Mon2:1510.42:3510.58:400.19:060.06:167:00Waxing Crescent9Mon
10Tue3:029.93:1810.29:240.69:540.46:176:58Waxing Crescent10Tue
11Wed3:509.34:049.810:101.210:450.86:186:56First Quarter11Wed
12Thu4:418.84:539.510:581.711:381.36:196:54First Quarter12Thu
13Fri5:358.35:469.211:502.26:206:53First Quarter13Fri
14Sat6:338.06:439.012:351.612:452.46:216:51First Quarter14Sat
15Sun7:327.97:419.01:321.71:412.56:226:49Waxing Gibbous15Sun
16Mon8:308.08:389.12:301.72:382.46:236:47Waxing Gibbous16Mon
17Tue9:238.39:319.43:251.53:322.16:246:46Waxing Gibbous17Tue
18Wed10:108.710:189.74:131.24:211.76:256:44Waxing Gibbous18Wed
19Thu10:509.111:0010.04:550.85:061.26:266:42Waxing Gibbous19Thu
20Fri11:289.511:4010.25:340.55:470.76:276:40Full Moon20Fri
21Sat12:049.96:120.36:290.36:286:39Full Moon21Sat
22Sun12:2010.312:4010.36:500.17:100.06:296:37Full Moon22Sun
23Mon1:0010.31:1810.67:280.07:53-0.36:306:35Waning Gibbous23Mon
24Tue1:4310.31:5810.88:090.18:37-0.46:316:33Waning Gibbous24Tue
25Wed2:2710.02:4110.98:520.39:25-0.36:326:32Waning Gibbous25Wed
26Thu3:159.73:2810.89:380.610:16-0.16:336:30Waning Gibbous26Thu
27Fri4:079.44:2110.610:290.911:140.26:346:28Third Quarter27Fri
28Sat5:069.05:2110.411:271.26:356:27Third Quarter28Sat
29Sun6:118.86:2610.212:160.412:311.46:376:25Third Quarter29Sun
30Mon7:188.87:3410.11:200.51:361.46:386:23Waning Crescent30Mon
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 10:44 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 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