Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 5h 54m at 8:12 am (-0.6 ft)
Next high tide : 2:09 pm (10.5 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Sep 1942

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:359.34:559.710:581.111:331.06:067:15Third Quarter1Tue
2Wed5:288.95:479.411:491.66:077:14Third Quarter2Wed
3Thu6:238.56:419.212:281.312:421.96:087:12Third Quarter3Thu
4Fri7:208.47:369.21:231.51:352.06:097:10Third Quarter4Fri
5Sat8:168.48:319.32:191.52:302.06:107:09Waning Crescent5Sat
6Sun9:108.59:239.53:131.43:231.86:117:07Waning Crescent6Sun
7Mon9:598.810:109.84:031.14:131.56:127:05Waning Crescent7Mon
8Tue10:429.210:5310.04:470.84:581.16:137:04Waning Crescent8Tue
9Wed11:229.511:3410.35:280.45:410.76:147:02New Moon9Wed
10Thu12:019.96:080.16:230.36:157:00New Moon10Thu
11Fri12:1510.512:3910.26:47-0.17:050.06:166:59New Moon11Fri
12Sat12:5610.51:1810.57:28-0.27:48-0.26:176:57Waxing Crescent12Sat
13Sun1:3810.51:5910.78:09-0.28:33-0.36:186:55Waxing Crescent13Sun
14Mon2:2310.42:4210.88:52-0.29:20-0.46:196:53Waxing Crescent14Mon
15Tue3:1010.23:2910.89:390.010:10-0.36:206:52Waxing Crescent15Tue
16Wed4:0110.04:2010.810:290.311:06-0.16:216:50First Quarter16Wed
17Thu4:579.75:1710.611:250.56:226:48First Quarter17Thu
18Fri5:589.46:1910.512:050.112:250.76:236:46First Quarter18Fri
19Sat7:029.47:2310.51:070.11:270.86:246:45Waxing Gibbous19Sat
20Sun8:089.58:2810.62:100.12:300.76:266:43Waxing Gibbous20Sun
21Mon9:129.89:3110.73:12-0.13:330.46:276:41Waxing Gibbous21Mon
22Tue10:1010.210:2910.94:11-0.34:320.06:286:39Waxing Gibbous22Tue
23Wed11:0210.511:2211.05:04-0.55:25-0.36:296:38Full Moon23Wed
24Thu11:5010.75:54-0.66:15-0.56:306:36Full Moon24Thu
25Fri12:1110.912:3510.86:40-0.57:03-0.56:316:34Full Moon25Fri
26Sat12:5810.71:1910.87:24-0.37:49-0.46:326:32Waning Gibbous26Sat
27Sun1:4410.42:0210.68:080.18:34-0.26:336:31Waning Gibbous27Sun
28Mon2:2910.02:4410.38:510.59:190.26:346:29Waning Gibbous28Mon
29Tue3:149.63:2710.09:341.010:060.66:356:27Waning Gibbous29Tue
30Wed4:019.14:149.610:201.410:551.06:366:26Third Quarter30Wed
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 11:10 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 spring phase. Tonight's moon is 11% 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 maximum.

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 Waxing Crescent (11% illuminated). This places Barnstable Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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