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 (tomorrow) : in 4h 19m at 12:10 am (1.0 ft)
Next high tide (tomorrow) : 6:06 am (9.5 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 - Sep 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:549.64:1410.110:230.710:550.66:077:14Third Quarter1Sat
2Sun4:439.35:0310.111:120.911:490.66:087:13Third Quarter2Sun
3Mon5:389.15:5810.212:061.06:097:11Third Quarter3Mon
4Tue6:379.16:5710.412:480.51:041.06:107:09Third Quarter4Tue
5Wed7:399.27:5910.61:480.32:050.96:117:08Waning Crescent5Wed
6Thu8:439.49:0210.92:500.03:070.66:127:06Waning Crescent6Thu
7Fri9:449.910:0311.33:50-0.44:070.16:137:04Waning Crescent7Fri
8Sat10:4110.411:0011.64:47-0.85:05-0.46:147:03New Moon8Sat
9Sun11:3410.811:5411.75:41-1.15:59-0.86:157:01New Moon9Sun
10Mon12:2611.16:31-1.36:52-1.06:166:59New Moon10Mon
11Tue12:4711.61:1611.27:21-1.27:44-1.06:176:58Waxing Crescent11Tue
12Wed1:4011.32:0511.28:09-0.98:35-0.86:186:56Waxing Crescent12Wed
13Thu2:3110.92:5310.98:57-0.49:25-0.46:196:54Waxing Crescent13Thu
14Fri3:2210.33:4110.59:460.210:170.06:206:52Waxing Crescent14Fri
15Sat4:159.74:3210.110:360.811:120.56:216:51First Quarter15Sat
16Sun5:109.15:269.711:291.46:226:49First Quarter16Sun
17Mon6:088.76:239.412:091.012:241.86:236:47First Quarter17Mon
18Tue7:078.57:209.21:071.31:212.06:246:45First Quarter18Tue
19Wed8:058.48:189.22:051.42:172.06:256:44Waxing Gibbous19Wed
20Thu9:018.59:129.43:011.43:121.96:266:42Waxing Gibbous20Thu
21Fri9:508.810:019.63:521.24:031.66:276:40Waxing Gibbous21Fri
22Sat10:339.110:449.84:370.94:491.26:286:38Waxing Gibbous22Sat
23Sun11:129.511:2410.05:170.75:300.96:296:37Full Moon23Sun
24Mon11:499.75:550.56:110.66:306:35Full Moon24Mon
25Tue12:0310.112:2510.06:320.36:500.36:316:33Full Moon25Tue
26Wed12:4210.21:0110.27:100.27:310.16:326:31Full Moon26Wed
27Thu1:2110.11:3810.47:480.28:120.06:336:30Waning Gibbous27Thu
28Fri2:0210.02:1710.58:280.38:550.06:356:28Waning Gibbous28Fri
29Sat2:459.92:5910.59:100.59:410.06:366:26Waning Gibbous29Sat
30Sun3:319.63:4610.59:560.710:320.16:376:25Third Quarter30Sun
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 3:08 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 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