Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 8:54 am (0.0 ft)
Next high tide : in 3h 44m at 1:39 am (4.3 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jul 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:213.06:255.112:480.911:50 AM1.35:528:11Waxing Gibbous1Fri
2Sat7:383.17:085.61:440.112:421.55:528:11Waxing Gibbous2Sat
3Sun8:423.37:526.02:34-0.61:341.65:538:11Waxing Gibbous3Sun
4Mon9:373.48:386.23:22-1.12:251.75:538:11Full Moon4Mon
5Tue10:283.69:256.34:09-1.43:151.85:548:11Full Moon5Tue
6Wed11:173.610:126.24:55-1.54:061.85:548:10Full Moon6Wed
7Thu12:053.75:41-1.44:571.85:558:10Waning Gibbous7Thu
8Fri12:543.76:27-1.25:521.95:558:10Waning Gibbous8Fri
9Sat1:443.87:13-0.86:532.05:568:10Waning Gibbous9Sat
10Sun12:394.82:363.97:59-0.38:042.15:568:10Waning Gibbous10Sun
11Mon1:354.23:294.08:450.39:292.15:578:09Third Quarter11Mon
12Tue2:443.54:224.19:330.811:031.85:588:09Third Quarter12Tue
13Wed4:123.05:104.310:221.35:588:09Third Quarter13Wed
14Thu5:552.85:544.412:261.411:13 AM1.75:598:08Third Quarter14Thu
15Fri7:242.86:344.61:270.912:042.05:598:08Waning Crescent15Fri
16Sat8:282.97:114.82:130.512:522.26:008:07Waning Crescent16Sat
17Sun9:153.07:465.02:510.21:352.26:018:07Waning Crescent17Sun
18Mon9:513.28:205.23:24-0.12:142.26:018:06Waning Crescent18Mon
19Tue10:223.28:545.33:55-0.32:502.26:028:06New Moon19Tue
20Wed10:523.39:275.44:26-0.43:252.26:028:05New Moon20Wed
21Thu11:223.410:015.44:57-0.54:012.16:038:05New Moon21Thu
22Fri11:533.410:365.35:29-0.54:382.16:048:04New Moon22Fri
23Sat12:263.56:01-0.45:192.16:048:04Waxing Crescent23Sat
24Sun1:013.66:34-0.26:062.16:058:03Waxing Crescent24Sun
25Mon1:393.77:070.07:032.16:068:02Waxing Crescent25Mon
26Tue12:394.32:203.97:430.48:162.06:068:02Waxing Crescent26Tue
27Wed1:373.73:074.28:220.89:451.76:078:01First Quarter27Wed
28Thu2:593.14:004.59:081.311:181.36:088:00First Quarter28Thu
29Fri4:492.84:574.810:051.76:097:59First Quarter29Fri
30Sat6:362.85:545.212:360.611:14 AM2.06:097:59Waxing Gibbous30Sat
31Sun7:543.16:495.61:36-0.112:252.16:107:58Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410068)

Common Questions About San Nicolas Island, CA Tides

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What time does the tide turn (slack tide) in San Nicolas Island, CA today?

Slack tide in San Nicolas Island, CA is approximately 5:16 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 San Nicolas Island, CA?

San Nicolas Island, CA is currently in a transitional phase. Tonight's moon is 28% 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 San Nicolas 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 San Nicolas Island, CA?

Tide predictions for San Nicolas 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 San Nicolas Island, CA?

Tide data for San Nicolas Island, CA is sourced from NOAA Station #9410068. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410068.

What is the moon phase in San Nicolas Island, CA tonight?

Tonight the moon over San Nicolas Island, CA is Waxing Crescent (28% illuminated). This places San Nicolas 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