Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 2h 38m at 12:30 am (0.8 ft)
Next high tide : 6:25 am (2.5 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (39% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Oct 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:332.612:224.54:572.59:051.06:536:41Third Quarter1Wed
2Thu1:254.210:430.96:536:40Third Quarter2Thu
3Fri3:114.111:520.66:546:38Third Quarter3Fri
4Sat7:233.44:504.311:183.06:556:37Third Quarter4Sat
5Sun7:273.76:014.612:390.312:272.56:556:36Waning Crescent5Sun
6Mon7:424.16:584.81:160.11:171.86:566:34Waning Crescent6Mon
7Tue8:044.57:495.01:500.02:021.16:576:33Waning Crescent7Tue
8Wed8:295.08:385.02:220.12:460.46:586:32Waning Crescent8Wed
9Thu8:585.59:284.82:540.23:32-0.26:586:31New Moon9Thu
10Fri9:305.910:184.53:270.54:18-0.66:596:29New Moon10Fri
11Sat10:046.111:124.14:000.95:08-0.87:006:28New Moon11Sat
12Sun10:426.04:351.46:01-0.77:016:27Waxing Crescent12Sun
13Mon12:133.611:24 AM5.85:111.87:00-0.57:016:26Waxing Crescent13Mon
14Tue1:283.212:125.45:512.38:10-0.17:026:24Waxing Crescent14Tue
15Wed3:103.11:144.96:462.79:320.17:036:23First Quarter15Wed
16Thu5:073.32:404.48:363.010:530.27:046:22First Quarter16Thu
17Fri6:133.64:214.210:552.911:590.37:046:21First Quarter17Fri
18Sat6:523.95:424.212:202.47:056:20First Quarter18Sat
19Sun7:214.26:444.212:480.31:141.97:066:19Waxing Gibbous19Sun
20Mon7:464.47:334.21:260.51:551.47:076:17Waxing Gibbous20Mon
21Tue8:074.68:144.11:560.72:301.07:086:16Waxing Gibbous21Tue
22Wed8:264.88:514.02:210.93:010.77:086:15Waxing Gibbous22Wed
23Thu8:455.09:273.92:431.13:320.47:096:14Full Moon23Thu
24Fri9:045.110:033.73:041.44:020.27:106:13Full Moon24Fri
25Sat9:255.210:403.53:241.64:330.07:116:12Full Moon25Sat
26Sun9:495.311:213.33:451.95:070.07:126:11Full Moon26Sun
27Mon10:145.24:052.15:460.17:136:10Waning Gibbous27Mon
28Tue12:093.110:43 AM5.14:252.36:300.27:136:09Waning Gibbous28Tue
29Wed1:132.911:17 AM4.94:422.57:250.47:146:08Waning Gibbous29Wed
30Thu11:594.78:310.57:156:07Waning Gibbous30Thu
31Fri1:014.49:430.57:166:06Third Quarter31Fri
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 3:27 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 39% 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 Third Quarter (39% 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