Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide (tomorrow) : in 5h 58m at 2:19 am (0.2 ft)
Next high tide (tomorrow) : 9:05 am (3.3 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - May 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:413.59:075.23:39-0.33:051.26:097:40New Moon1Fri
2Sat10:243.49:395.44:16-0.63:351.46:087:41New Moon2Sat
3Sun11:093.310:135.44:56-0.84:071.56:077:42New Moon3Sun
4Mon11:593.110:535.45:39-0.94:431.86:067:43Waxing Crescent4Mon
5Tue12:573.06:28-0.85:252.06:057:43Waxing Crescent5Tue
6Wed2:062.97:22-0.76:202.26:047:44Waxing Crescent6Wed
7Thu12:304.93:213.08:22-0.47:402.46:037:45Waxing Crescent7Thu
8Fri1:364.44:303.39:27-0.29:262.36:027:45First Quarter8Fri
9Sat2:584.05:243.710:300.011:081.96:027:46First Quarter9Sat
10Sun4:293.76:084.211:280.26:017:47First Quarter10Sun
11Mon5:533.66:474.612:251.312:190.46:007:48Waxing Gibbous11Mon
12Tue7:053.67:235.01:250.61:040.65:597:48Waxing Gibbous12Tue
13Wed8:063.57:585.32:160.01:450.95:587:49Waxing Gibbous13Wed
14Thu9:013.58:335.53:01-0.52:231.15:587:50Waxing Gibbous14Thu
15Fri9:513.59:075.63:44-0.83:001.45:577:51Full Moon15Fri
16Sat10:383.49:415.54:25-1.03:361.65:567:51Full Moon16Sat
17Sun11:243.310:165.35:06-0.94:111.85:567:52Full Moon17Sun
18Mon12:113.25:46-0.84:472.05:557:53Waning Gibbous18Mon
19Tue1:013.16:28-0.55:252.25:547:54Waning Gibbous19Tue
20Wed1:563.07:11-0.36:082.45:547:54Waning Gibbous20Wed
21Thu12:074.42:573.07:580.17:062.55:537:55Waning Gibbous21Thu
22Fri12:523.93:593.18:470.38:322.65:537:56Third Quarter22Fri
23Sat1:503.54:503.39:380.610:202.45:527:56Third Quarter23Sat
24Sun3:083.25:293.610:280.811:482.15:527:57Third Quarter24Sun
25Mon4:402.96:013.911:141.05:517:58Third Quarter25Mon
26Tue6:022.86:294.212:471.511:56 AM1.25:517:58Waning Crescent26Tue
27Wed7:092.96:584.61:321.012:351.45:507:59Waning Crescent27Wed
28Thu8:053.07:294.92:110.41:131.55:508:00Waning Crescent28Thu
29Fri8:543.18:025.32:48-0.11:501.65:508:00Waning Crescent29Fri
30Sat9:403.28:385.63:26-0.62:281.75:498:01New Moon30Sat
31Sun10:253.39:175.84:06-0.93:081.75:498:01New Moon31Sun
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 5:42 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 74% 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 Gibbous (74% 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