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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Prisoners Harbor, Santa Cruz Island, CA.
Next low tide : 11:05 pm (1.9 ft)
Next high tide : in 38m at 4:42 pm (4.5 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

Prisoners Harbor, Santa Cruz Island, CA Tides - Dec 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:545.43:442.55:13-0.26:464:49Waning Gibbous1Mon
2Tue12:003.510:28 AM5.14:212.75:520.16:464:49Waning Gibbous2Tue
3Wed12:493.511:04 AM4.75:052.96:320.46:474:49Waning Gibbous3Wed
4Thu1:443.511:47 AM4.26:053.07:160.76:484:49Waning Gibbous4Thu
5Fri2:413.612:423.87:323.18:031.06:494:49Third Quarter5Fri
6Sat3:333.82:023.39:182.88:541.36:504:49Third Quarter6Sat
7Sun4:164.13:423.110:432.39:441.56:514:49Third Quarter7Sun
8Mon4:524.55:103.111:411.710:331.76:514:49Third Quarter8Mon
9Tue5:254.96:183.212:261.06:524:49Waning Crescent9Tue
10Wed5:595.37:133.41:050.36:534:49Waning Crescent10Wed
11Thu6:355.78:013.512:031.91:44-0.46:544:49Waning Crescent11Thu
12Fri7:126.18:463.712:461.92:24-0.96:544:50New Moon12Fri
13Sat7:526.49:313.81:291.93:05-1.36:554:50New Moon13Sat
14Sun8:356.610:163.92:141.93:48-1.56:564:50New Moon14Sun
15Mon9:196.511:034.03:011.94:32-1.56:564:51New Moon15Mon
16Tue10:066.311:534.13:521.95:18-1.36:574:51Waxing Crescent16Tue
17Wed10:575.84:492.06:05-0.96:584:51Waxing Crescent17Wed
18Thu12:474.211:53 AM5.15:562.16:55-0.46:584:52Waxing Crescent18Thu
19Fri1:444.41:004.47:182.17:480.26:594:52First Quarter19Fri
20Sat2:444.62:253.78:531.98:450.86:594:53First Quarter20Sat
21Sun3:424.84:063.310:271.49:451.37:004:53First Quarter21Sun
22Mon4:375.15:403.211:420.810:451.77:004:53First Quarter22Mon
23Tue5:275.46:553.312:410.27:014:54Waxing Gibbous23Tue
24Wed6:115.67:523.41:28-0.37:014:55Waxing Gibbous24Wed
25Thu6:515.78:373.512:292.12:08-0.67:024:55Waxing Gibbous25Thu
26Fri7:285.89:153.61:122.12:43-0.77:024:56Full Moon26Fri
27Sat8:025.89:483.61:502.23:16-0.87:024:56Full Moon27Sat
28Sun8:355.710:203.72:252.23:47-0.77:034:57Full Moon28Sun
29Mon9:075.610:513.72:592.24:17-0.67:034:58Full Moon29Mon
30Tue9:395.411:233.73:332.24:47-0.47:034:58Waning Gibbous30Tue
31Wed10:115.111:563.74:102.35:17-0.17:034:59Waning Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410971)

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

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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 7:53 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 Prisoners Harbor, Santa Cruz Island, CA?

Prisoners Harbor, Santa Cruz Island, CA is currently in a neap phase. Tonight's moon is 49% 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 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 (49% illuminated). This places Prisoners Harbor, Santa Cruz Island, CA 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