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 : 12:55 pm (1.1 ft)
Next high tide : in 2h 30m at 6:30 am (8.9 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 - Jul 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:539.75:57-0.76:050.65:108:19New Moon1Fri
2Sat12:0011.212:449.66:47-0.66:540.75:118:19New Moon2Sat
3Sun12:4911.01:339.57:35-0.57:420.95:118:19Waxing Crescent3Sun
4Mon1:3710.72:199.48:21-0.28:291.05:128:19Waxing Crescent4Mon
5Tue2:2310.43:049.39:060.19:161.35:138:18Waxing Crescent5Tue
6Wed3:0910.13:489.29:500.410:031.55:138:18Waxing Crescent6Wed
7Thu3:569.74:339.110:340.810:531.75:148:18First Quarter7Thu
8Fri4:449.35:199.011:201.111:441.85:158:17First Quarter8Fri
9Sat5:358.96:069.112:071.45:158:17First Quarter9Sat
10Sun6:278.66:549.112:361.812:551.65:168:17First Quarter10Sun
11Mon7:208.47:429.21:291.81:431.85:178:16First Quarter11Mon
12Tue8:148.38:319.42:221.62:321.95:188:16Waxing Gibbous12Tue
13Wed9:078.39:199.73:141.43:221.85:188:15Waxing Gibbous13Wed
14Thu9:588.510:0610.04:051.04:111.75:198:14Waxing Gibbous14Thu
15Fri10:468.710:5210.44:540.64:591.45:208:14Full Moon15Fri
16Sat11:328.911:3710.75:400.25:451.15:218:13Full Moon16Sat
17Sun12:189.26:25-0.26:320.85:228:12Full Moon17Sun
18Mon12:2311.01:059.57:11-0.57:200.55:238:12Full Moon18Mon
19Tue1:1211.21:529.87:57-0.78:090.35:238:11Waning Gibbous19Tue
20Wed2:0111.22:4010.18:44-0.89:000.15:248:10Waning Gibbous20Wed
21Thu2:5211.13:2910.39:33-0.89:530.15:258:09Waning Gibbous21Thu
22Fri3:4510.94:2010.510:23-0.610:490.15:268:09Third Quarter22Fri
23Sat4:4110.55:1410.611:16-0.311:490.15:278:08Third Quarter23Sat
24Sun5:4010.06:1110.612:110.15:288:07Third Quarter24Sun
25Mon6:429.67:0810.612:500.21:080.45:298:06Third Quarter25Mon
26Tue7:469.38:0810.61:510.22:060.75:308:05Waning Crescent26Tue
27Wed8:519.29:0810.62:540.23:060.95:318:04Waning Crescent27Wed
28Thu9:539.210:0510.73:560.14:041.05:328:03Waning Crescent28Thu
29Fri10:499.210:5810.74:53-0.14:591.05:338:02New Moon29Fri
30Sat11:409.311:4710.75:44-0.25:490.95:348:01New Moon30Sat
31Sun12:279.36:31-0.26:370.95:358:00New Moon31Sun
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 9:42 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 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