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

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Prisoners Harbor, Santa Cruz Island, CA.
Next low tide : 7:38 pm (1.9 ft)
Next high tide : in 40m at 1:56 pm (4.5 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

Prisoners Harbor, Santa Cruz Island, CA Tides - Nov 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:134.56:593.912:301.21:191.97:186:05Waning Crescent1Tue
2Wed7:344.87:454.01:021.31:551.37:196:05Waning Crescent2Wed
3Thu7:555.18:274.01:311.42:270.87:206:04Waning Crescent3Thu
4Fri8:185.49:074.01:581.53:000.37:216:03Waning Crescent4Fri
5Sat8:425.69:464.02:251.63:34-0.17:226:02New Moon5Sat
6Sun8:105.99:283.91:521.83:10-0.46:235:01New Moon6Sun
7Mon8:406.010:123.82:222.03:48-0.66:245:00New Moon7Mon
8Tue9:146.011:013.62:542.24:31-0.66:254:59New Moon8Tue
9Wed9:525.911:583.53:292.45:19-0.56:254:59Waxing Crescent9Wed
10Thu10:365.74:112.66:12-0.36:264:58Waxing Crescent10Thu
11Fri1:063.411:29 AM5.35:072.97:12-0.16:274:57Waxing Crescent11Fri
12Sat2:203.612:364.96:303.18:150.16:284:57First Quarter12Sat
13Sun3:283.92:034.48:232.99:180.46:294:56First Quarter13Sun
14Mon4:214.33:374.110:052.410:160.66:304:55First Quarter14Mon
15Tue5:044.85:024.011:201.611:060.86:314:55Waxing Gibbous15Tue
16Wed5:445.36:124.012:180.86:324:54Waxing Gibbous16Wed
17Thu6:215.87:134.01:070.16:334:53Waxing Gibbous17Thu
18Fri6:576.18:074.012:341.31:52-0.56:344:53Waxing Gibbous18Fri
19Sat7:336.38:564.01:141.52:35-0.96:354:52Full Moon19Sat
20Sun8:086.49:433.91:521.83:16-1.06:364:52Full Moon20Sun
21Mon8:446.310:303.82:292.03:57-0.96:374:52Full Moon21Mon
22Tue9:206.011:173.73:062.34:38-0.76:384:51Full Moon22Tue
23Wed9:565.73:442.55:19-0.46:394:51Waning Gibbous23Wed
24Thu12:083.510:34 AM5.34:242.76:03-0.16:394:50Waning Gibbous24Thu
25Fri1:053.511:15 AM4.85:123.06:500.36:404:50Waning Gibbous25Fri
26Sat2:083.512:014.36:173.17:390.76:414:50Waning Gibbous26Sat
27Sun3:103.61:033.87:533.28:311.06:424:50Third Quarter27Sun
28Mon4:013.92:283.49:402.99:221.36:434:49Third Quarter28Mon
29Tue4:404.14:033.211:002.410:091.56:444:49Third Quarter29Tue
30Wed5:114.45:233.211:531.810:521.76:454:49Third 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 4:47 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 24% 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 Waxing Crescent (24% 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