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 3h 20m at 11:59 pm (1.2 ft)
Next high tide (tomorrow) : 5:54 am (8.4 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 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:319.09:579.33:331.43:581.35:377:38Waning Crescent1Sun
2Mon10:199.110:379.64:251.14:401.35:367:40Waning Crescent2Mon
3Tue11:029.111:139.85:080.85:181.35:347:41Waning Crescent3Tue
4Wed11:419.111:479.95:480.65:551.35:337:42New Moon4Wed
5Thu12:199.16:250.46:311.35:327:43New Moon5Thu
6Fri12:2210.012:579.07:030.47:081.45:317:44New Moon6Fri
7Sat12:5810.01:368.97:410.47:461.55:297:45New Moon7Sat
8Sun1:359.92:158.78:200.58:251.75:287:46Waxing Crescent8Sun
9Mon2:149.82:558.69:000.69:061.85:277:47Waxing Crescent9Mon
10Tue2:559.73:398.49:430.79:501.95:267:48Waxing Crescent10Tue
11Wed3:399.74:258.410:300.810:392.05:257:49Waxing Crescent11Wed
12Thu4:299.65:168.511:200.911:341.95:247:50First Quarter12Thu
13Fri5:249.56:098.812:130.85:237:51First Quarter13Fri
14Sat6:229.67:039.212:321.71:070.75:227:52First Quarter14Sat
15Sun7:219.77:579.81:311.22:010.55:217:53Waxing Gibbous15Sun
16Mon8:219.88:5110.52:310.62:560.35:207:54Waxing Gibbous16Mon
17Tue9:2110.19:4311.13:300.03:500.15:197:55Waxing Gibbous17Tue
18Wed10:1810.310:3511.64:26-0.74:43-0.15:187:56Full Moon18Wed
19Thu11:1210.411:2512.05:20-1.25:34-0.35:177:57Full Moon19Thu
20Fri12:0610.46:13-1.56:25-0.25:167:58Full Moon20Fri
21Sat12:1712.01:0110.37:06-1.67:170.05:157:59Full Moon21Sat
22Sun1:1011.91:5610.07:59-1.48:100.25:148:00Waning Gibbous22Sun
23Mon2:0411.52:519.88:52-1.09:030.65:148:01Waning Gibbous23Mon
24Tue2:5811.03:479.49:46-0.49:591.15:138:02Waning Gibbous24Tue
25Wed3:5510.54:449.210:410.110:581.45:128:03Third Quarter25Wed
26Thu4:549.95:439.011:380.611:591.75:128:04Third Quarter26Thu
27Fri5:559.46:409.012:351.05:118:04Third Quarter27Fri
28Sat6:559.07:339.11:001.81:291.45:108:05Third Quarter28Sat
29Sun7:548.88:249.22:001.72:211.65:108:06Waning Crescent29Sun
30Mon8:508.69:129.42:571.63:101.75:098:07Waning Crescent30Mon
31Tue9:428.69:559.63:491.33:561.85:098:08Waning 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 2:56 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 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