Tides Today & Tomorrow in Prisoners Harbor, Santa Cruz Island, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Prisoners Harbor, Santa Cruz Island, CA.
Next low tide : 8:51 am (0.0 ft)
Next high tide : in 34m at 1:48 am (4.6 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

Prisoners Harbor, Santa Cruz Island, CA Tides - May 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:303.46:49-1.25:572.26:087:42Waning Gibbous1Tue
2Wed12:175.42:453.37:49-0.76:592.66:077:43Waning Gibbous2Wed
3Thu1:144.94:083.38:54-0.38:282.86:067:44Third Quarter3Thu
4Fri2:254.35:193.610:010.110:202.76:057:45Third Quarter4Fri
5Sat3:523.96:103.911:050.311:522.36:047:45Third Quarter5Sat
6Sun5:193.66:484.111:580.66:037:46Third Quarter6Sun
7Mon6:323.57:184.412:561.712:410.86:037:47Waning Crescent7Mon
8Tue7:303.57:434.71:421.21:161.16:027:48Waning Crescent8Tue
9Wed8:193.58:074.92:200.71:461.36:017:49Waning Crescent9Wed
10Thu9:023.58:305.12:540.32:131.56:007:49Waning Crescent10Thu
11Fri9:413.48:555.33:26-0.12:391.75:597:50New Moon11Fri
12Sat10:193.49:215.43:57-0.33:061.95:587:51New Moon12Sat
13Sun10:573.39:495.44:30-0.53:332.05:587:52New Moon13Sun
14Mon11:373.310:205.45:04-0.64:022.25:577:52New Moon14Mon
15Tue12:223.25:42-0.64:322.45:567:53Waxing Crescent15Tue
16Wed1:133.16:23-0.55:072.55:557:54Waxing Crescent16Wed
17Thu2:113.17:08-0.35:532.75:557:55Waxing Crescent17Thu
18Fri12:154.93:153.27:58-0.27:022.95:547:55Waxing Crescent18Fri
19Sat1:094.54:143.48:510.08:412.95:547:56First Quarter19Sat
20Sun2:204.15:013.89:460.210:262.55:537:57First Quarter20Sun
21Mon3:483.85:414.310:400.511:491.85:527:57First Quarter21Mon
22Tue5:193.66:194.811:310.75:527:58First Quarter22Tue
23Wed6:403.56:575.412:530.912:200.95:517:59Waxing Gibbous23Wed
24Thu7:493.67:375.91:470.01:061.25:518:00Waxing Gibbous24Thu
25Fri8:503.78:176.22:37-0.71:521.45:508:00Waxing Gibbous25Fri
26Sat9:463.78:596.53:24-1.32:371.65:508:01Full Moon26Sat
27Sun10:393.79:426.54:11-1.63:221.85:498:02Full Moon27Sun
28Mon11:313.710:276.34:58-1.74:081.95:498:02Full Moon28Mon
29Tue12:233.75:45-1.64:572.15:498:03Waning Gibbous29Tue
30Wed1:173.66:33-1.25:492.35:488:03Waning Gibbous30Wed
31Thu12:005.52:143.67:22-0.86:502.55:488:04Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410971)

Common Questions About Prisoners Harbor, Santa Cruz Island, CA Tides

Show All
What time does the tide turn (slack tide) in Prisoners Harbor, Santa Cruz Island, CA today?

Slack tide in Prisoners Harbor, Santa Cruz Island, CA is approximately 5:19 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 Prisoners Harbor, Santa Cruz Island, CA?

Prisoners Harbor, Santa Cruz Island, CA is currently in a transitional phase. Tonight's moon is 38% 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 Prisoners Harbor, Santa Cruz Island, CA 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 Prisoners Harbor, Santa Cruz Island, CA?

Tide predictions for Prisoners Harbor, Santa Cruz Island, CA 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 Prisoners Harbor, Santa Cruz Island, CA?

Tide data for Prisoners Harbor, Santa Cruz Island, CA is sourced from NOAA Station #9410971. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410971.

What is the moon phase in Prisoners Harbor, Santa Cruz Island, CA tonight?

Tonight the moon over Prisoners Harbor, Santa Cruz Island, CA is First Quarter (38% illuminated). This places Prisoners Harbor, Santa Cruz Island, CA 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