Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide : 10:46 am (-0.2 ft)
Next high tide : in 40m at 4:06 am (10.6 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 - May 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:0611.53:529.99:53-1.010:090.55:367:39Waning Gibbous1Sat
2Sun4:0310.94:539.410:52-0.411:091.05:357:40Third Quarter2Sun
3Mon5:0610.35:599.111:540.15:347:41Third Quarter3Mon
4Tue6:129.87:049.012:131.412:580.65:337:42Third Quarter4Tue
5Wed7:209.58:089.11:191.62:000.85:317:43Third Quarter5Wed
6Thu8:259.39:059.32:251.53:001.05:307:44Waning Crescent6Thu
7Fri9:259.39:559.53:271.33:541.05:297:45Waning Crescent7Fri
8Sat10:179.310:379.74:211.04:391.05:287:47Waning Crescent8Sat
9Sun11:019.411:159.95:070.75:201.05:277:48Waning Crescent9Sun
10Mon11:429.311:5010.05:480.55:571.15:267:49New Moon10Mon
11Tue12:209.36:270.36:341.25:247:50New Moon11Tue
12Wed12:2510.112:599.27:040.37:111.35:237:51New Moon12Wed
13Thu1:0110.11:379.17:420.37:491.45:227:52New Moon13Thu
14Fri1:3810.02:168.98:210.48:271.65:217:53Waxing Crescent14Fri
15Sat2:179.92:578.79:010.69:081.85:207:54Waxing Crescent15Sat
16Sun2:579.73:398.69:430.79:512.05:197:55Waxing Crescent16Sun
17Mon3:409.64:258.510:280.910:392.15:187:56Waxing Crescent17Mon
18Tue4:289.55:148.511:171.011:312.05:187:57First Quarter18Tue
19Wed5:209.46:068.712:091.05:177:58First Quarter19Wed
20Thu6:169.46:589.112:271.81:020.85:167:59First Quarter20Thu
21Fri7:139.67:519.61:241.51:550.65:158:00Waxing Gibbous21Fri
22Sat8:129.88:4410.22:220.92:490.45:148:01Waxing Gibbous22Sat
23Sun9:1010.19:3610.93:200.23:420.15:148:01Waxing Gibbous23Sun
24Mon10:0710.310:2611.54:16-0.54:34-0.25:138:02Waxing Gibbous24Mon
25Tue11:0110.611:1612.05:10-1.15:26-0.45:128:03Full Moon25Tue
26Wed11:5510.66:03-1.56:17-0.55:118:04Full Moon26Wed
27Thu12:0712.212:4910.66:55-1.77:08-0.45:118:05Full Moon27Thu
28Fri1:0012.11:4510.47:48-1.78:01-0.15:108:06Waning Gibbous28Fri
29Sat1:5411.92:4010.28:42-1.48:550.25:108:07Waning Gibbous29Sat
30Sun2:4911.43:379.99:36-0.99:510.75:098:07Waning Gibbous30Sun
31Mon3:4710.94:369.610:33-0.310:501.15:098:08Third Quarter31Mon
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 7:26 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 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