Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 25m at 3:39 am (-1.2 ft)
Next high tide : 9:57 am (3.9 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Nov 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:365.48:393.81:321.32:37-0.16:165:06Full Moon1Sun
2Mon8:045.79:243.71:591.53:15-0.46:175:05Full Moon2Mon
3Tue8:355.810:133.52:291.73:57-0.66:185:04Full Moon3Tue
4Wed9:115.811:083.33:011.94:44-0.66:195:03Waning Gibbous4Wed
5Thu9:525.73:362.25:37-0.56:205:02Waning Gibbous5Thu
6Fri12:163.110:40 AM5.54:202.46:37-0.36:215:02Waning Gibbous6Fri
7Sat1:383.111:39 AM5.15:212.77:44-0.16:225:01Waning Gibbous7Sat
8Sun3:003.312:554.67:022.88:530.06:235:00Third Quarter8Sun
9Mon4:023.72:264.29:032.69:550.26:244:59Third Quarter9Mon
10Tue4:474.13:574.010:372.110:480.46:244:59Third Quarter10Tue
11Wed5:244.65:153.911:441.411:340.66:254:58Waning Crescent11Wed
12Thu5:585.06:203.912:380.76:264:57Waning Crescent12Thu
13Fri6:315.47:183.812:140.91:250.16:274:57Waning Crescent13Fri
14Sat7:025.68:093.712:511.22:08-0.46:284:56Waning Crescent14Sat
15Sun7:345.88:573.61:251.52:49-0.66:294:55New Moon15Sun
16Mon8:055.89:433.51:581.73:28-0.76:304:55New Moon16Mon
17Tue8:375.710:293.42:302.04:07-0.66:314:54New Moon17Tue
18Wed9:095.511:183.23:012.24:47-0.56:324:54Waxing Crescent18Wed
19Thu9:425.23:332.45:29-0.26:334:53Waxing Crescent19Thu
20Fri12:123.110:18 AM4.94:072.66:150.16:344:53Waxing Crescent20Fri
21Sat1:153.110:57 AM4.54:472.77:040.36:354:52Waxing Crescent21Sat
22Sun2:283.111:43 AM4.15:502.97:570.66:354:52First Quarter22Sun
23Mon3:313.312:473.77:403.08:500.86:364:52First Quarter23Mon
24Tue4:123.52:163.39:412.79:391.06:374:51First Quarter24Tue
25Wed4:423.83:503.111:012.210:231.26:384:51First Quarter25Wed
26Thu5:074.15:083.111:531.711:021.36:394:51First Quarter26Thu
27Fri5:324.56:123.112:341.06:404:51Waxing Gibbous27Fri
28Sat5:594.97:063.21:110.46:414:50Waxing Gibbous28Sat
29Sun6:285.37:553.312:131.61:49-0.16:424:50Waxing Gibbous29Sun
30Mon7:015.78:423.412:491.82:28-0.66:434:50Full Moon30Mon
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 6:48 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 spring phase. Tonight's moon is 1% 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 New Moon (1% 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