Tides Today & Tomorrow in Barnstable Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Barnstable Harbor, MA.
Next low tide (tomorrow) : in 4h 00m at 12:56 am (1.5 ft)
Next high tide (tomorrow) : 6:51 am (8.0 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447335
Common Questions About Tides

Barnstable Harbor, MA Tides - May 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:159.06:038.012:041.55:377:38Third Quarter1Wed
2Thu6:108.96:568.212:182.412:571.55:367:39Third Quarter2Thu
3Fri7:068.97:498.51:142.31:491.45:357:40Third Quarter3Fri
4Sat8:019.18:388.92:092.02:401.25:337:41Waning Crescent4Sat
5Sun8:559.39:259.53:031.43:290.95:327:42Waning Crescent5Sun
6Mon9:479.710:1010.23:550.84:170.55:317:44Waning Crescent6Mon
7Tue10:3510.010:5310.84:450.15:020.25:307:45New Moon7Tue
8Wed11:2310.311:3711.35:33-0.65:48-0.15:297:46New Moon8Wed
9Thu12:1110.46:21-1.16:34-0.25:277:47New Moon9Thu
10Fri12:2311.71:0110.47:10-1.47:22-0.25:267:48New Moon10Fri
11Sat1:1111.81:5310.28:00-1.48:120.05:257:49Waxing Crescent11Sat
12Sun2:0311.72:4710.08:52-1.39:050.35:247:50Waxing Crescent12Sun
13Mon2:5711.43:449.79:47-0.910:010.65:237:51Waxing Crescent13Mon
14Tue3:5511.04:459.510:45-0.411:021.05:227:52First Quarter14Tue
15Wed4:5810.55:509.311:470.05:217:53First Quarter15Wed
16Thu6:0510.06:559.312:071.212:500.35:207:54First Quarter16Thu
17Fri7:139.77:589.51:141.31:510.65:197:55First Quarter17Fri
18Sat8:199.58:569.72:191.22:510.75:187:56Waxing Gibbous18Sat
19Sun9:219.59:4810.03:220.93:450.85:177:57Waxing Gibbous19Sun
20Mon10:169.510:3310.24:190.64:340.95:167:58Waxing Gibbous20Mon
21Tue11:039.411:1310.35:080.35:181.05:157:59Full Moon21Tue
22Wed11:479.311:5110.35:520.25:581.15:158:00Full Moon22Wed
23Thu12:289.26:320.16:381.35:148:01Full Moon23Thu
24Fri12:2910.31:089.17:120.27:171.45:138:02Full Moon24Fri
25Sat1:0710.21:488.97:510.37:561.65:128:02Waning Gibbous25Sat
26Sun1:4610.02:288.88:310.58:371.85:128:03Waning Gibbous26Sun
27Mon2:279.93:098.69:120.79:191.95:118:04Waning Gibbous27Mon
28Tue3:099.73:538.59:550.910:042.15:108:05Waning Gibbous28Tue
29Wed3:549.54:388.410:401.110:522.25:108:06Waning Gibbous29Wed
30Thu4:419.35:268.511:271.211:432.25:098:07Third Quarter30Thu
31Fri5:329.26:158.712:161.25:098:07Third Quarter31Fri
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 3:53 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 55% 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 (55% 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