Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Thursday, August 13, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 2h 39m at 6:37 am (-0.9 ft)
Next high tide : 12:32 pm (10.3 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1944

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:578.97:418.51:012.11:381.45:377:39First Quarter1Mon
2Tue7:558.98:348.71:582.02:321.45:367:40Waxing Gibbous2Tue
3Wed8:518.99:239.02:541.83:231.45:347:41Waxing Gibbous3Wed
4Thu9:429.110:069.43:461.54:091.25:337:42Waxing Gibbous4Thu
5Fri10:279.310:469.74:331.14:501.05:327:43Waxing Gibbous5Fri
6Sat11:099.411:2310.05:150.75:300.85:307:44Full Moon6Sat
7Sun11:499.55:560.36:090.75:297:45Full Moon7Sun
8Mon12:0010.312:299.66:360.06:480.75:287:46Full Moon8Mon
9Tue12:3710.51:099.67:17-0.27:280.75:277:47Full Moon9Tue
10Wed1:1610.61:529.67:59-0.38:100.75:267:48Waning Gibbous10Wed
11Thu1:5810.72:369.58:43-0.38:540.85:257:49Waning Gibbous11Thu
12Fri2:4210.73:239.49:29-0.39:430.95:247:50Waning Gibbous12Fri
13Sat3:3110.64:149.310:20-0.210:361.05:237:51Waning Gibbous13Sat
14Sun4:2510.45:119.311:140.011:341.15:227:52Third Quarter14Sun
15Mon5:2410.36:109.512:120.15:217:53Third Quarter15Mon
16Tue6:2710.17:119.712:361.01:120.15:207:54Third Quarter16Tue
17Wed7:3110.18:1110.11:390.72:110.15:197:55Waning Crescent17Wed
18Thu8:3510.29:0910.62:420.43:09-0.15:187:56Waning Crescent18Thu
19Fri9:3710.310:0411.03:43-0.14:06-0.25:177:57Waning Crescent19Fri
20Sat10:3410.410:5411.34:40-0.64:58-0.25:167:58New Moon20Sat
21Sun11:2810.511:4311.55:33-0.95:48-0.25:157:59New Moon21Sun
22Mon12:1910.46:23-1.16:36-0.15:148:00New Moon22Mon
23Tue12:3011.41:0910.27:12-1.17:240.25:148:01New Moon23Tue
24Wed1:1711.21:579.98:00-0.88:110.65:138:02Waxing Crescent24Wed
25Thu2:0310.92:459.68:47-0.58:570.95:128:03Waxing Crescent25Thu
26Fri2:5010.53:329.39:340.09:451.35:128:04Waxing Crescent26Fri
27Sat3:3710.04:219.010:220.410:351.75:118:05Waxing Crescent27Sat
28Sun4:279.65:128.811:110.811:281.95:108:05First Quarter28Sun
29Mon5:209.26:048.812:021.25:108:06First Quarter29Mon
30Tue6:159.06:558.812:232.012:531.45:098:07First Quarter30Tue
31Wed7:098.87:459.01:172.01:431.55:098:08First Quarter31Wed
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 9:34 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 1% 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 New Moon (1% 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