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

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Prisoners Harbor, Santa Cruz Island, CA.
Next low tide : in 3h 53m at 6:38 am (-0.8 ft)
Next high tide : 1:13 pm (4.4 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

Prisoners Harbor, Santa Cruz Island, CA Tides - Jun 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:233.88:476.43:09-1.02:231.45:488:04Full Moon1Sat
2Sun10:203.79:276.53:56-1.53:051.75:478:05Full Moon2Sun
3Mon11:163.710:096.54:44-1.73:482.05:478:06Full Moon3Mon
4Tue12:133.65:33-1.74:332.35:478:06Full Moon4Tue
5Wed1:133.56:23-1.45:222.55:478:07Waning Gibbous5Wed
6Thu2:173.57:16-1.16:202.85:478:07Waning Gibbous6Thu
7Fri12:315.23:243.58:10-0.67:343.05:478:08Waning Gibbous7Fri
8Sat1:284.74:273.79:06-0.19:103.05:468:08Third Quarter8Sat
9Sun2:364.15:193.910:010.310:502.75:468:09Third Quarter9Sun
10Mon3:573.65:594.210:510.75:468:09Third Quarter10Mon
11Tue5:233.36:314.412:112.211:36 AM1.15:468:10Third Quarter11Tue
12Wed6:403.16:594.71:091.612:151.45:468:10Waning Crescent12Wed
13Thu7:453.17:245.01:531.012:491.75:468:10Waning Crescent13Thu
14Fri8:393.17:505.22:310.51:212.05:468:11Waning Crescent14Fri
15Sat9:263.28:175.43:050.11:522.25:468:11Waning Crescent15Sat
16Sun10:093.28:475.63:38-0.32:242.35:468:11New Moon16Sun
17Mon10:503.39:185.74:11-0.52:562.45:478:12New Moon17Mon
18Tue11:303.39:525.84:46-0.73:302.55:478:12New Moon18Tue
19Wed12:123.35:23-0.84:052.65:478:12New Moon19Wed
20Thu12:573.36:03-0.84:452.75:478:13Waxing Crescent20Thu
21Fri1:453.36:44-0.75:332.85:478:13Waxing Crescent21Fri
22Sat2:353.47:27-0.56:362.95:488:13Waxing Crescent22Sat
23Sun12:395.03:243.78:12-0.37:572.95:488:13Waxing Crescent23Sun
24Mon1:384.54:104.08:590.19:342.65:488:13First Quarter24Mon
25Tue2:543.94:544.49:470.511:072.05:488:13First Quarter25Tue
26Wed4:263.55:364.910:360.95:498:13First Quarter26Wed
27Thu6:013.26:185.412:231.211:27 AM1.35:498:14Waxing Gibbous27Thu
28Fri7:263.27:015.91:250.312:191.75:498:14Waxing Gibbous28Fri
29Sat8:373.37:456.22:18-0.51:112.05:508:14Waxing Gibbous29Sat
30Sun9:363.58:306.53:07-1.12:022.15:508:14Waxing Gibbous30Sun
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 9:55 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 spring phase. Tonight's moon is 15% 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 maximum.

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 Waxing Crescent (15% illuminated). This places Prisoners Harbor, Santa Cruz Island, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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