Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide (tomorrow) : in 5h 43m at 2:06 am (0.3 ft)
Next high tide (tomorrow) : 9:02 am (2.9 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jul 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:263.39:585.34:58-0.63:562.25:538:11New Moon1Wed
2Thu12:033.35:32-0.54:312.25:538:11New Moon2Thu
3Fri12:403.26:06-0.45:082.35:538:11Waxing Crescent3Fri
4Sat1:193.36:40-0.25:492.45:548:11Waxing Crescent4Sat
5Sun2:013.37:150.06:372.55:548:10Waxing Crescent5Sun
6Mon12:184.32:463.47:510.37:392.55:558:10Waxing Crescent6Mon
7Tue1:013.93:303.58:280.69:022.55:558:10First Quarter7Tue
8Wed1:583.44:143.79:080.910:372.25:568:10First Quarter8Wed
9Thu3:193.04:554.09:511.311:581.75:578:10First Quarter9Thu
10Fri5:022.75:354.410:401.55:578:09First Quarter10Fri
11Sat6:372.76:154.812:591.111:34 AM1.85:588:09Waxing Gibbous11Sat
12Sun7:492.96:575.21:480.412:281.95:588:09Waxing Gibbous12Sun
13Mon8:453.17:405.72:32-0.21:201.95:598:08Waxing Gibbous13Mon
14Tue9:323.38:256.03:15-0.82:111.95:598:08Waxing Gibbous14Tue
15Wed10:173.59:116.23:58-1.23:011.86:008:07Full Moon15Wed
16Thu11:003.79:586.34:41-1.43:511.76:018:07Full Moon16Thu
17Fri11:443.810:466.15:25-1.44:431.76:018:06Full Moon17Fri
18Sat12:293.96:09-1.25:381.76:028:06Waning Gibbous18Sat
19Sun1:174.06:54-0.96:401.76:038:05Waning Gibbous19Sun
20Mon12:305.12:074.27:39-0.47:521.76:038:05Waning Gibbous20Mon
21Tue1:304.43:004.38:260.29:171.66:048:04Third Quarter21Tue
22Wed2:443.73:574.59:160.810:511.46:058:04Third Quarter22Wed
23Thu4:203.14:534.710:121.36:058:03Third Quarter23Thu
24Fri6:082.95:484.912:180.911:13 AM1.86:068:02Third Quarter24Fri
25Sat7:383.06:385.01:250.412:162.16:078:02Waning Crescent25Sat
26Sun8:413.27:235.12:180.11:132.26:078:01Waning Crescent26Sun
27Mon9:273.38:035.23:00-0.22:012.26:088:00Waning Crescent27Mon
28Tue10:023.48:405.33:36-0.42:412.26:098:00Waning Crescent28Tue
29Wed10:323.59:145.34:09-0.43:162.16:097:59New Moon29Wed
30Thu10:593.59:465.34:39-0.43:502.06:107:58New Moon30Thu
31Fri11:263.510:185.25:07-0.34:232.06:117:57New Moon31Fri
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 5:34 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 72% 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 Waxing Gibbous (72% 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