Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 8:54 am (0.0 ft)
Next high tide : in 1h 18m at 1:39 am (4.3 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 - Sep 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:494.29:125.83:37-0.83:151.46:327:23Full Moon1Thu
2Fri10:204.49:545.74:13-0.73:581.26:337:22Full Moon2Fri
3Sat10:514.510:355.34:46-0.54:401.06:337:20Full Moon3Sat
4Sun11:214.611:154.85:18-0.15:221.06:347:19Waning Gibbous4Sun
5Mon11:514.511:564.35:470.46:051.06:357:18Waning Gibbous5Mon
6Tue12:214.56:150.96:531.26:357:16Waning Gibbous6Tue
7Wed12:413.712:534.36:411.57:491.36:367:15Waning Gibbous7Wed
8Thu1:403.11:294.27:052.09:051.46:377:14Third Quarter8Thu
9Fri3:252.72:194.07:262.410:481.36:377:12Third Quarter9Fri
10Sat3:353.96:387:11Third Quarter10Sat
11Sun8:013.15:044.012:171.111:09 AM3.06:387:10Third Quarter11Sun
12Mon8:173.36:124.31:130.712:352.86:397:08Waning Crescent12Mon
13Tue8:343.57:014.61:520.41:222.56:407:07Waning Crescent13Tue
14Wed8:523.77:424.92:250.21:582.26:407:06Waning Crescent14Wed
15Thu9:103.98:195.22:530.02:311.86:417:04Waning Crescent15Thu
16Fri9:314.18:555.33:20-0.13:051.56:427:03New Moon16Fri
17Sat9:534.49:325.33:47-0.23:401.16:427:01New Moon17Sat
18Sun10:184.610:115.14:14-0.14:180.86:437:00New Moon18Sun
19Mon10:454.810:544.84:420.25:000.66:446:59New Moon19Mon
20Tue11:155.011:414.35:110.55:470.56:446:57Waxing Crescent20Tue
21Wed11:495.15:411.06:420.56:456:56Waxing Crescent21Wed
22Thu12:373.712:295.06:141.57:480.56:466:55Waxing Crescent22Thu
23Fri1:533.21:204.96:512.09:120.56:466:53First Quarter23Fri
24Sat3:512.92:304.77:452.510:470.46:476:52First Quarter24Sat
25Sun6:023.14:014.79:382.86:486:50First Quarter25Sun
26Mon7:073.55:294.812:070.111:39 AM2.76:486:49First Quarter26Mon
27Tue7:463.96:385.01:06-0.212:542.36:496:48Waxing Gibbous27Tue
28Wed8:184.27:345.21:53-0.41:471.86:506:46Waxing Gibbous28Wed
29Thu8:484.48:215.32:33-0.42:321.36:506:45Waxing Gibbous29Thu
30Fri9:154.79:045.23:08-0.33:120.96:516:44Full Moon30Fri
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 5:16 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 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