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

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in Prisoners Harbor, Santa Cruz Island, CA.
Next low tide : in 3h 45m at 8:54 pm (1.9 ft)
Next high tide (tomorrow) : 2:25 am (3.6 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

Prisoners Harbor, Santa Cruz Island, CA Tides - Mar 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:055.68:154.312:541.41:56-1.16:255:55Waning Crescent1Thu
2Fri7:535.88:484.71:430.82:32-1.16:245:56New Moon2Fri
3Sat8:405.89:225.12:310.33:07-1.06:235:57New Moon3Sat
4Sun9:275.59:585.43:18-0.13:43-0.76:215:58New Moon4Sun
5Mon10:155.010:355.54:07-0.34:19-0.26:205:59Waxing Crescent5Mon
6Tue11:074.411:165.44:59-0.34:560.46:195:59Waxing Crescent6Tue
7Wed12:043.75:55-0.15:351.16:186:00Waxing Crescent7Wed
8Thu12:015.21:183.17:010.16:181.76:166:01Waxing Crescent8Thu
9Fri12:554.83:062.88:240.47:192.36:156:02First Quarter9Fri
10Sat2:054.55:132.99:590.49:062.66:146:03First Quarter10Sat
11Sun4:334.37:253.212:210.37:127:03First Quarter11Sun
12Mon5:564.38:063.51:190.17:117:04Waxing Gibbous12Mon
13Tue6:594.48:353.71:042.22:010.07:107:05Waxing Gibbous13Tue
14Wed7:474.68:593.91:501.82:33-0.17:087:06Waxing Gibbous14Wed
15Thu8:254.79:194.12:271.43:000.07:077:07Waxing Gibbous15Thu
16Fri8:594.79:394.32:591.13:240.17:067:07Waxing Gibbous16Fri
17Sat9:314.69:594.53:290.83:460.27:047:08Full Moon17Sat
18Sun10:024.510:204.64:000.54:070.47:037:09Full Moon18Sun
19Mon10:344.310:424.74:310.44:290.67:017:10Full Moon19Mon
20Tue11:084.011:064.85:040.34:510.97:007:11Full Moon20Tue
21Wed11:443.611:324.85:400.35:131.26:597:11Waning Gibbous21Wed
22Thu12:263.36:210.35:351.66:577:12Waning Gibbous22Thu
23Fri12:024.71:212.97:100.56:001.96:567:13Waning Gibbous23Fri
24Sat12:404.62:452.68:140.66:302.36:557:14Waning Gibbous24Sat
25Sun1:314.45:002.69:380.67:332.66:537:14Third Quarter25Sun
26Mon2:504.26:262.911:040.410:012.86:527:15Third Quarter26Mon
27Tue4:284.37:043.312:090.16:517:16Third Quarter27Tue
28Wed5:514.57:353.812:59-0.26:497:17Waning Crescent28Wed
29Thu6:574.88:064.312:561.71:41-0.46:487:17Waning Crescent29Thu
30Fri7:535.08:384.91:490.92:20-0.56:467:18Waning Crescent30Fri
31Sat8:445.19:125.32:380.22:57-0.46:457:19New Moon31Sat
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 11:39 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 transitional phase. Tonight's moon is 33% 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 (33% 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