Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 2h 45m at 11:41 am (0.3 ft)
Next high tide : 5:45 pm (9.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:06 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:2211.92:0010.78:03-1.68:19-0.45:367:39Waxing Crescent1Sun
2Mon2:1311.52:5210.38:54-1.29:100.15:357:40Waxing Crescent2Mon
3Tue3:0411.03:459.99:46-0.710:020.65:347:41Waxing Crescent3Tue
4Wed3:5710.54:409.510:39-0.110:571.15:327:42First Quarter4Wed
5Thu4:539.95:379.211:350.511:551.55:317:43First Quarter5Thu
6Fri5:529.46:349.012:310.95:307:45First Quarter6Fri
7Sat6:519.17:309.012:541.71:271.25:297:46First Quarter7Sat
8Sun7:498.98:239.11:521.72:201.45:287:47Waxing Gibbous8Sun
9Mon8:458.99:129.32:481.63:111.45:277:48Waxing Gibbous9Mon
10Tue9:379.09:579.63:411.33:581.35:257:49Waxing Gibbous10Tue
11Wed10:239.110:389.94:281.04:411.25:247:50Waxing Gibbous11Wed
12Thu11:059.211:1610.15:110.75:221.15:237:51Full Moon12Thu
13Fri11:459.311:5310.35:510.46:011.05:227:52Full Moon13Fri
14Sat12:259.46:310.26:400.95:217:53Full Moon14Sat
15Sun12:3110.41:059.47:110.07:200.95:207:54Full Moon15Sun
16Mon1:1010.51:459.47:52-0.18:020.95:197:55Waning Gibbous16Mon
17Tue1:5010.52:279.48:33-0.18:450.95:187:56Waning Gibbous17Tue
18Wed2:3310.53:119.49:17-0.19:310.95:177:57Waning Gibbous18Wed
19Thu3:1810.43:589.510:04-0.110:211.05:177:58Waning Gibbous19Thu
20Fri4:0810.34:509.610:540.011:160.95:167:59Third Quarter20Fri
21Sat5:0410.25:459.811:490.15:158:00Third Quarter21Sat
22Sun6:0310.16:4110.012:150.812:450.15:148:01Third Quarter22Sun
23Mon7:0410.07:3910.41:150.51:420.15:138:02Waning Crescent23Mon
24Tue8:0710.18:3710.82:160.22:400.05:138:02Waning Crescent24Tue
25Wed9:0910.29:3411.23:17-0.33:37-0.15:128:03Waning Crescent25Wed
26Thu10:0910.410:2811.64:16-0.74:33-0.35:118:04Waning Crescent26Thu
27Fri11:0510.511:2011.85:11-1.15:26-0.35:118:05New Moon27Fri
28Sat11:5810.56:04-1.36:17-0.35:108:06New Moon28Sat
29Sun12:1111.812:5110.46:55-1.37:08-0.15:108:07New Moon29Sun
30Mon1:0211.61:4310.37:45-1.27:580.15:098:08Waxing Crescent30Mon
31Tue1:5211.32:3310.08:34-0.88:470.55:098:08Waxing 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 2:43 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 neap phase. Tonight's moon is 48% 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 minimum.

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 (48% illuminated). This places Barnstable Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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