Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 12:55 pm (1.1 ft)
Next high tide : in 4h 19m at 6:30 am (8.9 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:3910.610:0910.93:460.04:14-0.45:367:39Waning Crescent1Sun
2Mon10:3610.810:5911.44:43-0.75:06-0.75:357:40New Moon2Mon
3Tue11:3011.011:4811.85:37-1.35:56-0.85:347:41New Moon3Tue
4Wed12:2311.06:29-1.66:45-0.75:337:42New Moon4Wed
5Thu12:3811.91:1510.87:20-1.77:34-0.45:317:43New Moon5Thu
6Fri1:2711.82:0710.48:11-1.58:240.05:307:45Waxing Crescent6Fri
7Sat2:1711.43:0010.09:02-1.09:140.55:297:46Waxing Crescent7Sat
8Sun3:0810.93:539.59:54-0.410:061.15:287:47Waxing Crescent8Sun
9Mon4:0110.34:499.010:480.211:021.65:277:48First Quarter9Mon
10Tue4:589.75:488.711:450.75:267:49First Quarter10Tue
11Wed5:589.36:468.612:011.912:431.15:247:50First Quarter11Wed
12Thu6:589.07:428.71:012.11:391.45:237:51First Quarter12Thu
13Fri7:578.98:358.92:002.02:331.55:227:52Waxing Gibbous13Fri
14Sat8:548.99:239.12:571.83:231.55:217:53Waxing Gibbous14Sat
15Sun9:449.010:059.53:491.54:081.45:207:54Waxing Gibbous15Sun
16Mon10:299.110:449.84:361.14:491.35:197:55Waxing Gibbous16Mon
17Tue11:119.211:2110.05:180.85:281.25:197:56Full Moon17Tue
18Wed11:519.211:5710.25:570.56:061.25:187:57Full Moon18Wed
19Thu12:309.26:370.36:441.25:177:58Full Moon19Thu
20Fri12:3410.31:109.27:160.17:241.25:167:59Full Moon20Fri
21Sat1:1210.41:519.17:570.18:051.25:158:00Waning Gibbous21Sat
22Sun1:5310.42:349.08:400.08:481.35:148:01Waning Gibbous22Sun
23Mon2:3610.43:199.09:240.19:351.45:148:02Waning Gibbous23Mon
24Tue3:2310.34:089.010:130.210:261.45:138:03Waning Gibbous24Tue
25Wed4:1510.25:029.111:050.211:231.45:128:03Third Quarter25Wed
26Thu5:1210.15:589.312:010.35:128:04Third Quarter26Thu
27Fri6:1310.06:569.712:231.212:580.25:118:05Third Quarter27Fri
28Sat7:1510.07:5310.11:250.91:550.25:108:06Waning Crescent28Sat
29Sun8:1810.08:5010.62:270.42:520.15:108:07Waning Crescent29Sun
30Mon9:2010.29:4511.13:27-0.13:480.05:098:08Waning Crescent30Mon
31Tue10:1810.310:3711.54:25-0.64:42-0.15:098:08Waning Crescent31Tue
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 9:42 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 32% 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 (32% 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