Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 4h 17m at 1:35 am (1.3 ft)
Next high tide (tomorrow) : 7:30 am (8.3 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:279.75:5010.711:510.46:077:14First Quarter1Wed
2Thu6:329.46:5410.412:350.112:530.86:087:13First Quarter2Thu
3Fri7:399.27:5910.31:390.31:560.96:097:11Waxing Gibbous3Fri
4Sat8:459.29:0310.32:430.42:591.06:107:09Waxing Gibbous4Sat
5Sun9:459.410:0210.33:440.34:000.86:117:07Waxing Gibbous5Sun
6Mon10:389.710:5310.44:390.24:540.66:127:06Full Moon6Mon
7Tue11:239.911:3810.45:260.15:420.46:137:04Full Moon7Tue
8Wed12:0410.06:090.16:260.36:147:02Full Moon8Wed
9Thu12:2110.312:4310.16:480.27:070.36:157:01Full Moon9Thu
10Fri1:0110.11:2010.17:270.47:480.36:166:59Waning Gibbous10Fri
11Sat1:419.91:5810.08:050.68:290.56:176:57Waning Gibbous11Sat
12Sun2:219.62:369.98:440.99:100.76:186:55Waning Gibbous12Sun
13Mon3:029.33:169.79:231.29:530.96:196:54Waning Gibbous13Mon
14Tue3:459.03:589.510:061.510:391.26:206:52Waning Gibbous14Tue
15Wed4:318.64:459.310:521.811:281.46:216:50Third Quarter15Wed
16Thu5:228.45:369.211:422.06:226:49Third Quarter16Thu
17Fri6:158.36:299.212:211.512:352.06:236:47Third Quarter17Fri
18Sat7:098.47:249.41:151.41:291.96:246:45Waning Crescent18Sat
19Sun8:048.68:209.72:091.22:251.66:256:43Waning Crescent19Sun
20Mon8:579.19:1410.13:030.83:201.16:266:42Waning Crescent20Mon
21Tue9:479.710:0610.63:540.34:130.46:276:40Waning Crescent21Tue
22Wed10:3410.410:5511.04:43-0.25:04-0.36:286:38New Moon22Wed
23Thu11:2011.111:4411.35:30-0.75:53-0.96:296:36New Moon23Thu
24Fri12:0711.66:17-1.06:43-1.46:306:35New Moon24Fri
25Sat12:3411.412:5511.97:05-1.17:34-1.66:326:33Waxing Crescent25Sat
26Sun1:2611.31:4512.07:53-1.18:25-1.66:336:31Waxing Crescent26Sun
27Mon2:1811.02:3711.88:44-0.89:18-1.36:346:29Waxing Crescent27Mon
28Tue3:1310.63:3111.59:37-0.410:14-0.86:356:28Waxing Crescent28Tue
29Wed4:1110.14:2911.010:330.211:14-0.36:366:26First Quarter29Wed
30Thu5:139.75:3210.511:340.66:376:24First Quarter30Thu
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 4:32 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 62% 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 (62% 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