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 6h 41m at 6:38 am (-0.8 ft)
Next high tide : 1:13 pm (4.4 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9410971
Common Questions About Tides

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

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:314.010:336.05:02-1.14:232.06:107:59Full Moon1Thu
2Fri12:044.15:37-0.85:052.06:117:58Waning Gibbous2Fri
3Sat12:374.16:09-0.45:482.06:117:57Waning Gibbous3Sat
4Sun1:094.26:400.16:352.16:127:57Waning Gibbous4Sun
5Mon12:274.61:434.27:080.77:292.26:137:56Waning Gibbous5Mon
6Tue1:103.92:194.27:351.38:372.26:137:55Third Quarter6Tue
7Wed2:053.33:004.38:011.810:102.16:147:54Third Quarter7Wed
8Thu3:412.83:504.38:292.311:531.76:157:53Third Quarter8Thu
9Fri6:422.74:514.49:102.86:167:52Third Quarter9Fri
10Sat8:292.95:514.71:041.210:50 AM3.16:167:51Third Quarter10Sat
11Sun9:013.26:455.01:500.712:183.16:177:50Waning Crescent11Sun
12Mon9:243.47:315.42:280.21:163.06:187:49Waning Crescent12Mon
13Tue9:453.68:135.73:01-0.22:002.76:187:47Waning Crescent13Tue
14Wed10:083.88:526.03:33-0.62:402.46:197:46New Moon14Wed
15Thu10:334.09:316.24:04-0.83:202.16:207:45New Moon15Thu
16Fri11:004.210:116.24:35-0.94:011.86:217:44New Moon16Fri
17Sat11:304.410:535.95:07-0.84:461.66:217:43New Moon17Sat
18Sun12:024.65:39-0.55:351.46:227:42Waxing Crescent18Sun
19Mon12:364.86:110.06:301.36:237:41Waxing Crescent19Mon
20Tue12:274.81:165.06:440.67:361.36:247:39Waxing Crescent20Tue
21Wed1:284.02:015.17:201.38:581.26:247:38First Quarter21Wed
22Thu2:523.32:585.18:012.010:350.96:257:37First Quarter22Thu
23Fri5:032.94:095.28:592.66:267:36First Quarter23Fri
24Sat7:103.15:265.312:060.410:37 AM3.06:267:35First Quarter24Sat
25Sun8:153.56:365.61:14-0.112:153.06:277:33Waxing Gibbous25Sun
26Mon8:553.87:345.82:07-0.51:242.76:287:32Waxing Gibbous26Mon
27Tue9:274.08:236.02:50-0.72:152.36:287:31Waxing Gibbous27Tue
28Wed9:564.29:056.03:28-0.82:582.06:297:29Full Moon28Wed
29Thu10:234.49:435.94:01-0.73:371.76:307:28Full Moon29Thu
30Fri10:494.510:195.74:30-0.54:131.56:317:27Full Moon30Fri
31Sat11:134.610:535.34:58-0.14:491.46:317:26Full Moon31Sat
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 8% 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 (8% 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