Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 5h 05m at 8:54 am (0.0 ft)
Next high tide : 3:42 pm (4.0 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Dec 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:445.310:403.22:402.04:14-0.36:434:50Full Moon1Thu
2Fri9:115.211:263.13:062.24:50-0.26:444:50Waning Gibbous2Fri
3Sat9:415.03:332.45:30-0.16:454:50Waning Gibbous3Sat
4Sun12:223.010:14 AM4.84:022.66:140.16:464:50Waning Gibbous4Sun
5Mon1:323.010:52 AM4.54:392.87:040.36:464:50Waning Gibbous5Mon
6Tue2:513.111:40 AM4.15:433.07:580.46:474:50Waning Gibbous6Tue
7Wed3:493.312:473.87:433.08:530.66:484:50Third Quarter7Wed
8Thu4:243.62:183.59:422.79:450.76:494:50Third Quarter8Thu
9Fri4:513.93:523.310:582.210:310.86:494:50Third Quarter9Fri
10Sat5:174.35:113.311:531.411:140.96:504:50Waning Crescent10Sat
11Sun5:454.86:173.412:390.76:514:51Waning Crescent11Sun
12Mon6:175.37:163.51:23-0.16:524:51Waning Crescent12Mon
13Tue6:525.88:113.612:361.22:07-0.76:524:51Waning Crescent13Tue
14Wed7:306.19:043.61:171.42:52-1.26:534:51New Moon14Wed
15Thu8:116.39:573.62:001.63:39-1.56:544:52New Moon15Thu
16Fri8:556.410:513.52:451.74:28-1.56:544:52New Moon16Fri
17Sat9:426.211:493.53:341.95:18-1.46:554:52Waxing Crescent17Sat
18Sun10:335.84:282.16:11-1.16:554:53Waxing Crescent18Sun
19Mon12:503.511:28 AM5.25:312.27:07-0.76:564:53Waxing Crescent19Mon
20Tue1:553.612:314.56:512.48:04-0.26:574:54First Quarter20Tue
21Wed2:583.81:483.98:302.39:020.36:574:54First Quarter21Wed
22Thu3:554.13:193.410:101.99:580.76:584:55First Quarter22Thu
23Fri4:444.44:513.111:301.410:501.16:584:55First Quarter23Fri
24Sat5:244.66:093.112:290.96:584:56Waxing Gibbous24Sat
25Sun6:004.87:133.11:160.46:594:56Waxing Gibbous25Sun
26Mon6:315.08:043.112:161.61:550.06:594:57Waxing Gibbous26Mon
27Tue7:015.18:463.212:511.82:29-0.37:004:58Waxing Gibbous27Tue
28Wed7:305.29:233.21:242.03:01-0.47:004:58Full Moon28Wed
29Thu7:595.39:583.21:562.13:32-0.57:004:59Full Moon29Thu
30Fri8:295.310:323.22:272.14:03-0.67:015:00Full Moon30Fri
31Sat9:015.211:103.12:592.24:36-0.57:015:00Full Moon31Sat
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 12:18 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 transitional phase. Tonight's moon is 38% 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 First Quarter (38% 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