Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 50m at 5:12 am (-0.5 ft)
Next high tide : 11:26 am (3.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Oct 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:042.712:154.45:242.58:401.06:526:42Waning Gibbous1Fri
2Sat1:034.110:191.16:536:41Third Quarter2Sat
3Sun2:363.911:410.96:546:39Third Quarter3Sun
4Mon7:393.34:283.911:133.16:546:38Third Quarter4Mon
5Tue7:353.55:434.112:320.712:232.76:556:37Third Quarter5Tue
6Wed7:443.86:374.41:080.51:062.26:566:35Waning Crescent6Wed
7Thu7:584.17:224.61:370.41:431.76:566:34Waning Crescent7Thu
8Fri8:164.58:054.72:040.32:201.16:576:33Waning Crescent8Fri
9Sat8:374.98:484.72:310.42:570.56:586:31New Moon9Sat
10Sun9:015.39:324.52:580.63:370.06:596:30New Moon10Sun
11Mon9:295.610:194.33:270.84:20-0.36:596:29New Moon11Mon
12Tue10:015.811:103.93:571.15:06-0.57:006:28New Moon12Tue
13Wed10:375.94:291.55:58-0.57:016:26Waxing Crescent13Wed
14Thu12:093.511:19 AM5.85:031.96:57-0.47:026:25Waxing Crescent14Thu
15Fri1:233.212:085.55:432.38:08-0.27:026:24Waxing Crescent15Fri
16Sat3:043.01:125.06:382.79:300.07:036:23First Quarter16Sat
17Sun4:543.22:404.78:282.910:490.17:046:22First Quarter17Sun
18Mon5:593.64:194.510:432.811:540.17:056:20First Quarter18Mon
19Tue6:414.05:424.412:112.27:056:19First Quarter19Tue
20Wed7:144.46:474.412:450.11:111.67:066:18Waxing Gibbous20Wed
21Thu7:434.77:414.41:250.31:581.17:076:17Waxing Gibbous21Thu
22Fri8:095.08:284.32:000.52:390.67:086:16Waxing Gibbous22Fri
23Sat8:345.29:104.12:290.83:160.37:096:15Full Moon23Sat
24Sun8:575.39:513.92:561.13:510.07:106:14Full Moon24Sun
25Mon9:205.410:303.73:201.44:25-0.17:106:13Full Moon25Mon
26Tue9:445.411:113.43:431.74:59-0.17:116:12Full Moon26Tue
27Wed10:095.311:553.24:052.05:350.07:126:11Waning Gibbous27Wed
28Thu10:365.14:262.36:150.27:136:10Waning Gibbous28Thu
29Fri12:503.011:05 AM4.94:452.57:020.47:146:09Waning Gibbous29Fri
30Sat2:102.811:40 AM4.64:592.78:010.67:156:08Waning Gibbous30Sat
31Sun12:264.39:110.87:156:07Third Quarter31Sun
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 8:19 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 99% 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 Full Moon (99% 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