Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 46m at 6:15 pm (1.0 ft)
Next high tide (tomorrow) : 12:00 am (4.5 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Nov 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:444.76:344.712:230.012:531.06:165:06Waning Crescent1Fri
2Sat7:125.27:274.71:000.11:380.36:175:05Waning Crescent2Sat
3Sun7:435.78:184.61:350.32:23-0.36:185:04New Moon3Sun
4Mon8:166.09:104.42:110.63:09-0.76:195:03New Moon4Mon
5Tue8:516.110:054.02:461.03:57-0.96:205:03New Moon5Tue
6Wed9:286.111:043.73:231.44:48-0.96:215:02Waxing Crescent6Wed
7Thu10:095.84:011.95:43-0.76:215:01Waxing Crescent7Thu
8Fri12:143.410:53 AM5.44:432.36:45-0.46:225:00Waxing Crescent8Fri
9Sat1:433.211:46 AM4.85:372.77:560.06:234:59Waxing Crescent9Sat
10Sun3:273.412:584.37:123.09:110.26:244:59First Quarter10Sun
11Mon4:423.62:333.99:283.010:190.36:254:58First Quarter11Mon
12Tue5:273.94:043.811:032.511:120.56:264:57First Quarter12Tue
13Wed5:594.15:143.812:002.06:274:57First Quarter13Wed
14Thu6:254.46:093.812:421.66:284:56Waxing Gibbous14Thu
15Fri6:464.66:543.812:270.81:171.16:294:56Waxing Gibbous15Fri
16Sat7:064.87:343.712:551.01:480.76:304:55Waxing Gibbous16Sat
17Sun7:265.08:123.71:191.22:190.46:314:54Waxing Gibbous17Sun
18Mon7:475.28:493.61:421.42:490.16:314:54Full Moon18Mon
19Tue8:095.39:283.52:061.63:21-0.16:324:53Full Moon19Tue
20Wed8:345.310:103.32:291.83:55-0.26:334:53Full Moon20Wed
21Thu9:015.310:573.12:542.04:32-0.26:344:53Full Moon21Thu
22Fri9:315.311:543.03:192.35:14-0.26:354:52Waning Gibbous22Fri
23Sat10:065.13:472.56:03-0.16:364:52Waning Gibbous23Sat
24Sun1:102.910:48 AM4.84:202.77:000.16:374:52Waning Gibbous24Sun
25Mon2:423.011:42 AM4.55:212.98:040.26:384:51Waning Gibbous25Mon
26Tue3:513.31:004.27:273.09:070.26:394:51Third Quarter26Tue
27Wed4:303.72:353.99:322.710:040.36:404:51Third Quarter27Wed
28Thu5:014.14:063.810:552.110:540.46:414:51Third Quarter28Thu
29Fri5:324.65:223.811:551.311:380.56:414:50Waning Crescent29Fri
30Sat6:045.16:273.812:460.56:424:50Waning Crescent30Sat
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 9:07 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 San Nicolas Island, CA?

San Nicolas Island, CA is currently in a spring phase. Tonight's moon is 12% 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 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 (12% illuminated). This places San Nicolas 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