Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 6:55 am (0.7 ft)
Next high tide : in 2h 07m at 12:17 am (4.0 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:11 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Sep 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:044.35:590.96:221.36:327:22Waning Gibbous1Sat
2Sun12:103.912:354.26:251.37:091.56:337:21Waning Gibbous2Sun
3Mon12:533.41:104.16:521.78:091.66:347:20Waning Gibbous3Mon
4Tue1:553.01:564.07:222.19:351.66:347:19Third Quarter4Tue
5Wed3:502.73:013.98:072.411:151.46:357:17Third Quarter5Wed
6Thu6:182.84:234.09:482.66:367:16Third Quarter6Thu
7Fri7:173.15:344.312:271.111:33 AM2.66:367:15Third Quarter7Fri
8Sat7:483.46:304.61:150.712:382.46:377:13Waning Crescent8Sat
9Sun8:143.77:175.01:520.31:262.06:387:12Waning Crescent9Sun
10Mon8:404.08:015.32:260.02:081.66:387:10Waning Crescent10Mon
11Tue9:084.38:435.52:59-0.22:491.26:397:09New Moon11Tue
12Wed9:384.69:265.63:33-0.33:310.86:397:08New Moon12Wed
13Thu10:104.910:105.44:06-0.34:140.56:407:06New Moon13Thu
14Fri10:445.110:575.14:41-0.15:010.36:417:05New Moon14Fri
15Sat11:225.211:494.65:180.35:530.36:417:04Waxing Crescent15Sat
16Sun12:045.25:560.76:500.36:427:02Waxing Crescent16Sun
17Mon12:484.012:525.16:391.37:580.56:437:01Waxing Crescent17Mon
18Tue2:033.51:504.97:301.89:210.66:436:59First Quarter18Tue
19Wed3:443.23:054.78:422.210:510.56:446:58First Quarter19Wed
20Thu5:333.34:314.610:242.46:456:57First Quarter20Thu
21Fri6:473.65:494.712:080.311:59 AM2.36:456:55First Quarter21Fri
22Sat7:363.96:524.81:070.11:052.06:466:54Waxing Gibbous22Sat
23Sun8:134.27:424.91:540.01:551.66:476:53Waxing Gibbous23Sun
24Mon8:444.48:245.02:330.02:351.36:476:51Waxing Gibbous24Mon
25Tue9:114.59:024.93:050.13:111.16:486:50Full Moon25Tue
26Wed9:354.69:364.83:340.33:440.96:496:49Full Moon26Wed
27Thu9:594.710:094.64:000.54:150.86:496:47Full Moon27Thu
28Fri10:224.710:424.34:240.74:470.76:506:46Full Moon28Fri
29Sat10:464.711:174.04:481.05:200.76:516:44Waning Gibbous29Sat
30Sun11:114.711:563.75:121.45:570.86:516:43Waning Gibbous30Sun
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 3:36 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 83% 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 Waning Gibbous (83% 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