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 : 9:39 am (0.6 ft)
Next high tide : in 12m at 2:59 am (3.9 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 - Jul 2020

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:573.47:286.01:500.012:521.75:518:14Waxing Gibbous1Wed
2Thu8:593.58:106.22:40-0.61:421.95:518:14Waxing Gibbous2Thu
3Fri9:533.68:536.43:26-1.12:302.05:528:13Full Moon3Fri
4Sat10:423.79:346.34:10-1.33:152.15:528:13Full Moon4Sat
5Sun11:273.810:156.24:52-1.34:002.25:538:13Full Moon5Sun
6Mon12:103.85:33-1.24:442.35:538:13Full Moon6Mon
7Tue12:533.86:13-0.95:292.45:548:13Waning Gibbous7Tue
8Wed1:373.86:53-0.56:172.65:548:12Waning Gibbous8Wed
9Thu12:165.02:233.87:320.07:132.75:558:12Waning Gibbous9Thu
10Fri1:004.43:103.88:110.48:242.75:568:12Waning Gibbous10Fri
11Sat1:503.93:584.08:510.99:532.65:568:12Third Quarter11Sat
12Sun2:573.34:444.19:331.411:272.25:578:11Third Quarter12Sun
13Mon4:342.95:274.410:191.85:578:11Third Quarter13Mon
14Tue6:202.86:064.612:401.711:09 AM2.15:588:10Third Quarter14Tue
15Wed7:422.96:444.91:311.112:012.35:598:10Waning Crescent15Wed
16Thu8:393.17:215.32:120.612:492.55:598:10Waning Crescent16Thu
17Fri9:223.37:585.62:480.11:342.56:008:09Waning Crescent17Fri
18Sat9:583.48:365.93:23-0.42:162.46:018:09Waning Crescent18Sat
19Sun10:333.69:156.13:58-0.72:572.46:018:08New Moon19Sun
20Mon11:073.79:546.24:33-1.03:382.36:028:07New Moon20Mon
21Tue11:443.810:366.25:10-1.14:222.26:038:07New Moon21Tue
22Wed12:223.95:48-1.05:102.16:038:06Waxing Crescent22Wed
23Thu1:034.16:27-0.86:042.16:048:06Waxing Crescent23Thu
24Fri12:075.51:474.37:07-0.47:082.16:058:05Waxing Crescent24Fri
25Sat1:004.92:354.57:490.18:262.06:058:04Waxing Crescent25Sat
26Sun2:064.23:284.78:340.79:571.76:068:04First Quarter26Sun
27Mon3:323.54:255.09:261.311:291.26:078:03First Quarter27Mon
28Tue5:193.15:245.310:271.86:078:02First Quarter28Tue
29Wed7:013.26:205.612:450.511:35 AM2.26:088:01Waxing Gibbous29Wed
30Thu8:163.47:135.91:45-0.112:422.46:098:00Waxing Gibbous30Thu
31Fri9:103.68:016.02:35-0.61:402.46:108:00Waxing Gibbous31Fri
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 6:19 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 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