Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide (tomorrow) : 12:48 am (0.9 ft)
Next high tide : in 2h 58m at 4:05 pm (4.2 ft)
Sunset today : 7:38 pm
Sunrise tomorrow : 6:24 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Nov 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:383.212:264.06:462.88:300.86:165:06Third Quarter1Fri
2Sat4:043.41:463.68:442.99:401.06:175:05Third Quarter2Sat
3Sun4:573.63:213.510:292.610:371.06:185:04Third Quarter3Sun
4Mon5:313.94:393.511:322.211:221.06:195:03Third Quarter4Mon
5Tue5:584.15:383.612:151.76:205:02Waning Crescent5Tue
6Wed6:224.46:253.712:501.36:215:01Waning Crescent6Wed
7Thu6:454.77:073.812:301.11:230.86:225:01Waning Crescent7Thu
8Fri7:095.07:473.912:591.11:560.46:235:00Waning Crescent8Fri
9Sat7:355.38:273.91:291.22:300.06:244:59New Moon9Sat
10Sun8:045.59:083.91:591.33:07-0.36:254:58New Moon10Sun
11Mon8:355.69:533.82:311.43:46-0.56:254:58New Moon11Mon
12Tue9:105.710:423.63:051.64:29-0.66:264:57New Moon12Tue
13Wed9:495.611:373.53:441.85:16-0.56:274:56Waxing Crescent13Wed
14Thu10:345.34:282.16:09-0.36:284:56Waxing Crescent14Thu
15Fri12:433.411:27 AM5.05:252.37:09-0.16:294:55Waxing Crescent15Fri
16Sat1:573.512:344.56:462.58:140.16:304:55First Quarter16Sat
17Sun3:103.81:594.18:312.49:210.36:314:54First Quarter17Sun
18Mon4:104.13:333.910:112.010:220.46:324:54First Quarter18Mon
19Tue4:594.54:563.811:251.411:160.66:334:53Waxing Gibbous19Tue
20Wed5:415.06:053.812:230.86:344:53Waxing Gibbous20Wed
21Thu6:205.37:033.912:030.81:120.26:354:52Waxing Gibbous21Thu
22Fri6:565.67:543.912:460.91:56-0.26:364:52Waxing Gibbous22Fri
23Sat7:315.78:413.91:251.12:37-0.56:364:52Full Moon23Sat
24Sun8:055.89:263.82:021.33:16-0.66:374:51Full Moon24Sun
25Mon8:385.710:093.72:381.63:54-0.66:384:51Full Moon25Mon
26Tue9:115.510:543.53:131.84:32-0.56:394:51Full Moon26Tue
27Wed9:455.211:413.43:482.05:11-0.36:404:51Waning Gibbous27Wed
28Thu10:194.94:262.25:520.06:414:50Waning Gibbous28Thu
29Fri12:343.310:56 AM4.55:092.56:360.36:424:50Waning Gibbous29Fri
30Sat1:353.311:39 AM4.06:062.77:240.66:434:50Waning Gibbous30Sat
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 8:26 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 56% 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 (56% 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