Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 1h 57m at 4:01 pm (0.8 ft)
Next high tide : 9:59 pm (11.1 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:5210.02:318.88:380.38:441.55:377:38Waxing Crescent1Sun
2Mon2:3210.03:148.69:200.49:271.65:367:39Waxing Crescent2Mon
3Tue3:169.94:018.510:070.510:161.85:357:41Waxing Crescent3Tue
4Wed4:059.84:538.510:580.711:101.85:337:42First Quarter4Wed
5Thu5:019.75:508.611:550.75:327:43First Quarter5Thu
6Fri6:019.76:498.912:111.712:520.65:317:44First Quarter6Fri
7Sat7:049.87:479.51:131.41:500.45:307:45Waxing Gibbous7Sat
8Sun8:0810.08:4410.12:150.92:470.25:287:46Waxing Gibbous8Sun
9Mon9:1010.29:3810.83:170.23:43-0.15:277:47Waxing Gibbous9Mon
10Tue10:0810.410:3011.34:15-0.44:36-0.35:267:48Waxing Gibbous10Tue
11Wed11:0310.611:1911.75:10-1.05:27-0.45:257:49Full Moon11Wed
12Thu11:5610.66:02-1.46:16-0.35:247:50Full Moon12Thu
13Fri12:0811.812:4910.46:53-1.57:06-0.15:237:51Full Moon13Fri
14Sat12:5811.71:4110.17:44-1.37:550.25:227:52Waning Gibbous14Sat
15Sun1:4811.42:339.88:35-0.98:450.75:217:53Waning Gibbous15Sun
16Mon2:3910.93:259.39:26-0.49:371.25:207:54Waning Gibbous16Mon
17Tue3:3110.44:209.010:180.210:311.65:197:55Waning Gibbous17Tue
18Wed4:269.85:168.711:140.711:291.95:187:56Third Quarter18Wed
19Thu5:249.46:138.612:101.15:177:57Third Quarter19Thu
20Fri6:239.07:088.612:282.11:041.45:167:58Third Quarter20Fri
21Sat7:218.87:598.81:272.11:571.65:157:59Third Quarter21Sat
22Sun8:188.78:489.02:241.92:461.75:158:00Waning Crescent22Sun
23Mon9:118.79:339.33:181.73:331.75:148:01Waning Crescent23Mon
24Tue10:008.810:149.64:071.34:171.65:138:02Waning Crescent24Tue
25Wed10:448.810:529.94:511.04:571.65:128:03Waning Crescent25Wed
26Thu11:258.911:2910.15:320.75:371.55:128:04New Moon26Thu
27Fri12:068.96:130.46:171.55:118:04New Moon27Fri
28Sat12:0710.212:478.96:530.36:571.45:108:05New Moon28Sat
29Sun12:4610.31:298.97:340.27:391.45:108:06New Moon29Sun
30Mon1:2810.42:128.98:170.18:221.45:098:07Waxing Crescent30Mon
31Tue2:1210.42:578.99:020.19:091.45:098:08Waxing Crescent31Tue
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 7:00 pm — 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 6% 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 Waning Crescent (6% 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