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 5h 32m 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 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:363.35:284.210:181.011:531.95:488:05First Quarter1Tue
2Wed5:103.16:024.611:051.25:488:05First Quarter2Wed
3Thu6:343.16:385.112:521.111:53 AM1.55:478:06Waxing Gibbous3Thu
4Fri7:443.27:165.61:410.312:401.65:478:06Waxing Gibbous4Fri
5Sat8:443.47:576.12:28-0.51:271.85:478:07Waxing Gibbous5Sat
6Sun9:383.58:406.53:13-1.12:141.95:478:08Full Moon6Sun
7Mon10:293.69:266.63:59-1.63:021.95:478:08Full Moon7Mon
8Tue11:183.710:136.64:46-1.83:521.95:478:09Full Moon8Tue
9Wed12:093.85:33-1.84:452.05:468:09Waning Gibbous9Wed
10Thu1:003.96:21-1.65:432.15:468:09Waning Gibbous10Thu
11Fri1:544.07:10-1.26:492.25:468:10Waning Gibbous11Fri
12Sat12:505.32:504.18:00-0.78:062.25:468:10Waning Gibbous12Sat
13Sun1:524.63:464.38:51-0.19:372.15:468:11Third Quarter13Sun
14Mon3:073.84:404.69:420.511:101.75:478:11Third Quarter14Mon
15Tue4:393.35:304.810:351.15:478:11Third Quarter15Tue
16Wed6:153.06:165.012:291.211:27 AM1.65:478:12Waning Crescent16Wed
17Thu7:393.06:565.21:310.612:182.05:478:12Waning Crescent17Thu
18Fri8:443.17:345.42:190.11:042.25:478:12Waning Crescent18Fri
19Sat9:333.28:085.52:59-0.21:452.45:478:13Waning Crescent19Sat
20Sun10:133.38:425.63:34-0.42:232.55:478:13New Moon20Sun
21Mon10:463.49:155.64:07-0.62:582.55:488:13New Moon21Mon
22Tue11:183.49:475.64:38-0.63:332.55:488:13New Moon22Tue
23Wed11:493.410:205.55:09-0.64:082.45:488:13New Moon23Wed
24Thu12:213.55:40-0.54:442.55:488:13New Moon24Thu
25Fri12:553.56:11-0.45:242.55:498:14Waxing Crescent25Fri
26Sat1:303.66:42-0.26:102.65:498:14Waxing Crescent26Sat
27Sun12:034.72:073.87:140.17:062.65:498:14Waxing Crescent27Sun
28Mon12:454.32:463.97:460.58:192.55:508:14Waxing Crescent28Mon
29Tue1:383.73:284.28:210.99:482.25:508:14First Quarter29Tue
30Wed2:533.24:144.59:011.311:181.75:518:14First Quarter30Wed
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