Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Barnstable Harbor, MA.
Next low tide (tomorrow) : 1:44 am (0.4 ft)
Next high tide : in 2h 53m at 6:50 pm (10.4 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Sep 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:189.211:2710.65:240.35:340.96:087:13Full Moon1Sat
2Sun11:599.76:07-0.16:190.36:097:11Full Moon2Sun
3Mon12:1110.812:4010.26:48-0.47:05-0.16:107:09Full Moon3Mon
4Tue12:5611.01:2210.67:31-0.67:51-0.56:117:08Waning Gibbous4Tue
5Wed1:4211.02:0610.98:15-0.68:39-0.66:127:06Waning Gibbous5Wed
6Thu2:3010.82:5211.19:00-0.59:29-0.66:137:04Waning Gibbous6Thu
7Fri3:2010.43:4111.19:48-0.210:23-0.46:147:03Waning Gibbous7Fri
8Sat4:1510.04:3410.910:400.311:21-0.26:157:01Third Quarter8Sat
9Sun5:149.55:3310.611:370.76:166:59Third Quarter9Sun
10Mon6:189.16:3610.412:230.112:381.16:176:57Third Quarter10Mon
11Tue7:258.97:4210.21:270.31:421.36:186:56Waning Crescent11Tue
12Wed8:348.98:4910.22:330.42:471.36:196:54Waning Crescent12Wed
13Thu9:389.19:5210.33:370.33:501.16:206:52Waning Crescent13Thu
14Fri10:339.510:4710.54:350.24:470.86:216:50Waning Crescent14Fri
15Sat11:219.711:3510.55:250.05:380.56:226:49New Moon15Sat
16Sun12:049.96:090.06:240.46:236:47New Moon16Sun
17Mon12:2010.412:4410.06:510.17:080.36:246:45New Moon17Mon
18Tue1:0310.21:2310.07:300.37:500.36:256:43Waxing Crescent18Tue
19Wed1:449.92:0010.08:080.68:310.56:266:42Waxing Crescent19Wed
20Thu2:249.62:379.88:461.09:120.76:276:40Waxing Crescent20Thu
21Fri3:069.23:179.69:261.49:561.06:286:38Waxing Crescent21Fri
22Sat3:498.83:599.410:081.810:421.36:296:37Waxing Crescent22Sat
23Sun4:378.44:479.110:542.111:331.66:316:35First Quarter23Sun
24Mon5:298.15:399.011:452.46:326:33First Quarter24Mon
25Tue6:257.96:348.912:281.712:392.56:336:31First Quarter25Tue
26Wed7:227.97:319.01:231.71:352.56:346:30First Quarter26Wed
27Thu8:188.18:279.32:191.52:312.26:356:28Waxing Gibbous27Thu
28Fri9:118.69:219.83:131.23:261.76:366:26Waxing Gibbous28Fri
29Sat9:589.210:1110.24:020.74:171.06:376:24Waxing Gibbous29Sat
30Sun10:429.810:5710.74:490.25:060.36:386:23Full Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447335)

Common Questions About Barnstable Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Barnstable Harbor, MA today?

Slack tide in Barnstable Harbor, MA is approximately 10:17 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 Third Quarter (32% illuminated). This places Barnstable Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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