Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide : in 57m at 11:18 am (1.5 ft)
Next high tide : 5:16 pm (9.6 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:239.25:098.111:121.311:232.35:377:38First Quarter1Mon
2Tue5:159.06:018.212:031.45:367:39First Quarter2Tue
3Wed6:099.06:528.412:172.212:541.45:357:40First Quarter3Wed
4Thu7:049.07:438.81:132.01:461.25:337:41First Quarter4Thu
5Fri8:009.28:339.42:091.62:371.05:327:43Waxing Gibbous5Fri
6Sat8:559.59:2110.13:041.03:270.75:317:44Waxing Gibbous6Sat
7Sun9:489.810:0810.73:580.34:160.45:307:45Waxing Gibbous7Sun
8Mon10:4010.110:5411.34:49-0.45:050.15:287:46Full Moon8Mon
9Tue11:3010.311:4211.85:39-1.05:53-0.25:277:47Full Moon9Tue
10Wed12:2110.36:30-1.46:42-0.25:267:48Full Moon10Wed
11Thu12:3212.01:1410.37:21-1.57:33-0.25:257:49Waning Gibbous11Thu
12Fri1:2411.92:0910.18:14-1.48:260.15:247:50Waning Gibbous12Fri
13Sat2:1811.73:059.99:08-1.19:210.45:237:51Waning Gibbous13Sat
14Sun3:1511.24:049.610:04-0.710:190.85:227:52Waning Gibbous14Sun
15Mon4:1610.75:069.411:03-0.211:231.15:217:53Third Quarter15Mon
16Tue5:2010.26:109.412:050.35:207:54Third Quarter16Tue
17Wed6:279.77:129.412:281.31:050.65:197:55Third Quarter17Wed
18Thu7:329.48:109.51:341.32:040.95:187:56Waning Crescent18Thu
19Fri8:359.29:059.72:371.13:001.15:177:57Waning Crescent19Fri
20Sat9:339.19:539.93:370.93:521.25:167:58Waning Crescent20Sat
21Sun10:249.110:3510.04:290.74:381.35:157:59Waning Crescent21Sun
22Mon11:099.111:1410.15:150.55:191.45:158:00New Moon22Mon
23Tue11:519.011:5210.15:570.45:591.55:148:01New Moon23Tue
24Wed12:308.96:360.36:381.55:138:02New Moon24Wed
25Thu12:3010.11:108.97:150.47:171.65:128:02New Moon25Thu
26Fri1:0810.01:508.87:540.57:571.75:128:03Waxing Crescent26Fri
27Sat1:489.92:308.78:330.68:381.85:118:04Waxing Crescent27Sat
28Sun2:289.83:108.69:140.79:201.95:108:05Waxing Crescent28Sun
29Mon3:109.73:538.69:560.810:042.05:108:06Waxing Crescent29Mon
30Tue3:549.54:378.610:400.910:532.05:098:07First Quarter30Tue
31Wed4:429.45:248.811:261.011:451.95:098:08First 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 2:17 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 neap phase. Tonight's moon is 46% 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 (46% 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