Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 11:08 pm (1.6 ft)
Next high tide : in 2h 10m at 4:33 pm (4.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Feb 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:315.18:473.312:272.22:13-0.96:535:29Waxing Gibbous1Sat
2Sun7:175.39:173.41:202.12:49-1.06:525:30Waxing Gibbous2Sun
3Mon7:575.39:433.42:021.93:22-0.96:515:31Full Moon3Mon
4Tue8:335.310:083.52:391.73:51-0.86:505:32Full Moon4Tue
5Wed9:065.210:323.63:131.64:18-0.76:505:33Full Moon5Wed
6Thu9:384.910:563.63:471.54:43-0.46:495:34Full Moon6Thu
7Fri10:094.611:213.74:221.45:06-0.16:485:35Waning Gibbous7Fri
8Sat10:414.211:463.74:591.45:280.36:475:36Waning Gibbous8Sat
9Sun11:143.65:421.55:480.76:465:37Waning Gibbous9Sun
10Mon12:123.811:54 AM3.06:341.56:051.16:455:38Waning Gibbous10Mon
11Tue12:433.812:512.57:441.56:181.66:445:39Third Quarter11Tue
12Wed1:223.83:052.09:291.36:131.96:435:40Third Quarter12Wed
13Thu2:193.911:150.96:435:41Third Quarter13Thu
14Fri3:364.012:180.46:425:42Third Quarter14Fri
15Sat4:514.48:002.81:02-0.26:415:43Waning Crescent15Sat
16Sun5:504.88:163.11:40-0.76:405:43Waning Crescent16Sun
17Mon6:415.38:383.312:372.12:15-1.16:385:44Waning Crescent17Mon
18Tue7:285.69:043.61:261.72:50-1.46:375:45New Moon18Tue
19Wed8:125.89:333.92:111.33:24-1.46:365:46New Moon19Wed
20Thu8:575.810:044.22:580.93:58-1.36:355:47New Moon20Thu
21Fri9:425.510:384.53:450.64:31-0.96:345:48New Moon21Fri
22Sat10:294.911:144.74:360.45:05-0.46:335:49Waxing Crescent22Sat
23Sun11:214.111:534.75:320.45:380.26:325:50Waxing Crescent23Sun
24Mon12:233.36:360.46:130.96:315:50Waxing Crescent24Mon
25Tue12:384.71:522.67:560.56:501.66:305:51First Quarter25Tue
26Wed1:334.54:282.49:360.47:432.26:285:52First Quarter26Wed
27Thu2:474.46:422.711:150.19:492.56:275:53First Quarter27Thu
28Fri4:144.37:283.012:26-0.36:265:54First Quarter28Fri
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 7:50 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places San Nicolas Island, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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