Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 3h 18m at 2:48 am (0.3 ft)
Next high tide (tomorrow) : 8:40 am (8.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - Jul 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:209.211:2410.85:24-0.25:281.15:108:19Full Moon1Wed
2Thu12:109.16:13-0.26:171.15:118:19Full Moon2Thu
3Fri12:1210.712:589.17:01-0.17:041.25:128:19Full Moon3Fri
4Sat12:5910.51:439.17:450.07:501.35:128:19Waning Gibbous4Sat
5Sun1:4410.32:259.18:280.28:351.45:138:18Waning Gibbous5Sun
6Mon2:2810.13:069.09:090.59:191.55:138:18Waning Gibbous6Mon
7Tue3:119.83:489.09:500.710:051.65:148:18Waning Gibbous7Tue
8Wed3:569.44:309.010:321.010:531.75:158:17Third Quarter8Wed
9Thu4:429.05:149.011:151.311:431.85:158:17Third Quarter9Thu
10Fri5:318.75:599.112:011.65:168:17Third Quarter10Fri
11Sat6:228.46:459.112:341.812:471.85:178:16Third Quarter11Sat
12Sun7:158.27:339.31:261.81:352.05:188:16Waning Crescent12Sun
13Mon8:108.18:239.52:191.62:262.15:188:15Waning Crescent13Mon
14Tue9:058.19:149.83:131.33:182.05:198:14Waning Crescent14Tue
15Wed9:588.310:0510.24:070.94:101.75:208:14Waning Crescent15Wed
16Thu10:488.610:5410.64:570.55:001.45:218:13New Moon16Thu
17Fri11:379.011:4311.05:460.05:501.05:228:12New Moon17Fri
18Sat12:269.46:33-0.46:400.65:238:12New Moon18Sat
19Sun12:3311.31:159.87:21-0.77:310.25:238:11New Moon19Sun
20Mon1:2411.42:0410.18:09-0.98:230.05:248:10Waxing Crescent20Mon
21Tue2:1611.32:5310.58:57-0.99:15-0.15:258:09Waxing Crescent21Tue
22Wed3:0811.13:4310.79:46-0.810:10-0.15:268:09Waxing Crescent22Wed
23Thu4:0310.64:3510.710:37-0.411:080.05:278:08First Quarter23Thu
24Fri5:0110.15:3010.711:310.05:288:07First Quarter24Fri
25Sat6:019.66:2710.612:080.112:260.55:298:06First Quarter25Sat
26Sun7:049.17:2610.41:100.31:240.95:308:05Waxing Gibbous26Sun
27Mon8:108.88:2610.32:130.42:231.35:318:04Waxing Gibbous27Mon
28Tue9:158.79:2710.33:170.53:241.45:328:03Waxing Gibbous28Tue
29Wed10:158.710:2210.34:180.44:211.45:338:02Waxing Gibbous29Wed
30Thu11:088.811:1210.35:120.35:141.45:348:01Full Moon30Thu
31Fri11:558.911:5810.35:590.36:011.35:358:00Full Moon31Fri
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 5:44 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 22% 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 Waning Crescent (22% 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