Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 6h 21m at 10:46 am (-0.2 ft)
Next high tide : 4:49 pm (9.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Aug 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:318.56:529.212:391.512:521.85:357:59Third Quarter1Sun
2Mon7:278.27:449.21:341.61:432.15:367:57Waning Crescent2Mon
3Tue8:238.18:369.32:291.62:352.25:377:56Waning Crescent3Tue
4Wed9:198.19:289.43:241.53:272.15:387:55Waning Crescent4Wed
5Thu10:108.310:159.74:151.24:171.95:397:54Waning Crescent5Thu
6Fri10:568.510:5910.05:010.95:031.75:407:53Waning Crescent6Fri
7Sat11:388.811:4210.25:440.65:471.45:417:51New Moon7Sat
8Sun12:199.16:250.36:301.15:427:50New Moon8Sun
9Mon12:2310.412:599.47:050.07:130.85:437:49New Moon9Mon
10Tue1:0510.61:399.77:46-0.27:570.55:447:47Waxing Crescent10Tue
11Wed1:4810.72:2010.08:27-0.38:420.35:457:46Waxing Crescent11Wed
12Thu2:3310.63:0210.29:09-0.39:300.25:477:45Waxing Crescent12Thu
13Fri3:1910.43:4710.49:54-0.210:200.15:487:43Waxing Crescent13Fri
14Sat4:0910.14:3510.510:420.111:150.15:497:42First Quarter14Sat
15Sun5:049.75:2910.611:340.45:507:41First Quarter15Sun
16Mon6:049.46:2610.612:140.212:310.75:517:39First Quarter16Mon
17Tue7:069.17:2710.61:150.21:300.95:527:38Waxing Gibbous17Tue
18Wed8:129.08:3010.62:180.22:321.05:537:36Waxing Gibbous18Wed
19Thu9:189.19:3310.83:210.03:340.95:547:35Waxing Gibbous19Thu
20Fri10:199.410:3211.04:23-0.24:340.75:557:33Waxing Gibbous20Fri
21Sat11:159.611:2611.05:18-0.45:290.45:567:32Full Moon21Sat
22Sun12:069.96:09-0.56:210.25:577:30Full Moon22Sun
23Mon12:1711.012:5310.06:57-0.57:100.25:587:29Full Moon23Mon
24Tue1:0610.81:3810.07:42-0.37:580.25:597:27Waning Gibbous24Tue
25Wed1:5310.52:2010.08:250.08:430.46:007:25Waning Gibbous25Wed
26Thu2:3810.13:029.99:060.49:290.66:017:24Waning Gibbous26Thu
27Fri3:229.73:439.79:490.810:160.96:027:22Waning Gibbous27Fri
28Sat4:099.24:279.510:321.311:051.26:037:21Third Quarter28Sat
29Sun4:588.75:159.211:191.811:571.56:047:19Third Quarter29Sun
30Mon5:518.36:069.112:092.16:057:17Third Quarter30Mon
31Tue6:468.06:599.012:511.71:012.36:067:16Third Quarter31Tue
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 1:47 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 37% 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 First Quarter (37% 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