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 5h 04m 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 - Jun 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:258.99:409.93:290.93:391.45:098:08Waxing Gibbous1Wed
2Thu10:168.910:2510.04:210.84:261.55:088:09Waxing Gibbous2Thu
3Fri11:018.911:0510.15:070.65:101.55:088:10Full Moon3Fri
4Sat11:438.911:4410.25:480.55:501.55:078:10Full Moon4Sat
5Sun12:238.96:280.46:301.55:078:11Full Moon5Sun
6Mon12:2310.21:038.97:070.47:101.55:078:12Full Moon6Mon
7Tue1:0210.21:428.97:450.47:511.55:068:12Waning Gibbous7Tue
8Wed1:4210.12:218.98:240.48:321.55:068:13Waning Gibbous8Wed
9Thu2:2210.03:009.09:040.59:141.65:068:14Waning Gibbous9Thu
10Fri3:039.93:409.09:440.59:581.65:068:14Waning Gibbous10Fri
11Sat3:469.74:239.210:270.610:451.55:068:15Third Quarter11Sat
12Sun4:329.65:089.411:120.711:361.45:058:15Third Quarter12Sun
13Mon5:239.45:569.712:000.75:058:16Third Quarter13Mon
14Tue6:169.46:4610.012:301.112:500.85:058:16Third Quarter14Tue
15Wed7:139.37:3810.41:260.81:430.75:058:17Waning Crescent15Wed
16Thu8:119.48:3310.92:240.42:390.65:058:17Waning Crescent16Thu
17Fri9:129.69:3011.33:23-0.13:350.45:058:17Waning Crescent17Fri
18Sat10:109.810:2511.74:21-0.64:320.15:058:18New Moon18Sat
19Sun11:0710.111:2012.05:17-1.15:27-0.15:068:18New Moon19Sun
20Mon12:0310.36:11-1.46:22-0.35:068:18New Moon20Mon
21Tue12:1612.11:0010.47:05-1.57:17-0.35:068:19New Moon21Tue
22Wed1:1212.01:5510.57:58-1.48:12-0.25:068:19Waxing Crescent22Wed
23Thu2:0811.72:4910.58:50-1.29:070.05:068:19Waxing Crescent23Thu
24Fri3:0311.23:4310.49:42-0.810:030.35:078:19Waxing Crescent24Fri
25Sat3:5910.64:3710.210:35-0.311:000.65:078:19First Quarter25Sat
26Sun4:5610.05:3210.011:280.35:078:19First Quarter26Sun
27Mon5:559.56:269.912:000.912:220.85:088:19First Quarter27Mon
28Tue6:549.07:199.712:591.11:151.35:088:19First Quarter28Tue
29Wed7:528.68:129.71:571.22:081.65:088:19Waxing Gibbous29Wed
30Thu8:508.59:049.72:551.23:011.85:098:19Waxing Gibbous30Thu
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 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