Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 3h 20m at 7:46 pm (1.6 ft)
Next high tide (tomorrow) : 1:10 am (3.4 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jul 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:323.34:423.99:380.911:112.05:538:11First Quarter1Wed
2Thu4:043.05:234.210:281.15:538:11First Quarter2Thu
3Fri5:402.96:044.712:221.411:21 AM1.35:538:11First Quarter3Fri
4Sat7:003.06:455.11:180.712:141.55:548:11Waxing Gibbous4Sat
5Sun8:053.27:285.62:060.01:061.65:548:11Waxing Gibbous5Sun
6Mon9:013.48:126.02:52-0.61:571.65:558:10Waxing Gibbous6Mon
7Tue9:513.68:576.23:37-1.12:461.65:558:10Full Moon7Tue
8Wed10:383.79:446.34:23-1.43:361.65:568:10Full Moon8Wed
9Thu11:263.810:326.25:08-1.54:281.65:578:10Full Moon9Thu
10Fri12:143.95:54-1.45:221.65:578:09Waning Gibbous10Fri
11Sat1:044.06:41-1.16:211.75:588:09Waning Gibbous11Sat
12Sun12:135.31:574.17:28-0.67:281.85:588:09Waning Gibbous12Sun
13Mon1:104.62:534.28:17-0.18:481.85:598:08Third Quarter13Mon
14Tue2:173.93:504.39:080.510:191.75:598:08Third Quarter14Tue
15Wed3:403.34:474.410:031.011:501.36:008:07Third Quarter15Wed
16Thu5:203.05:404.611:011.46:018:07Third Quarter16Thu
17Fri6:532.96:274.81:020.911:59 AM1.86:018:07Waning Crescent17Fri
18Sat8:053.07:094.91:570.512:522.06:028:06Waning Crescent18Sat
19Sun8:573.27:465.12:400.11:382.16:038:06Waning Crescent19Sun
20Mon9:373.38:205.23:17-0.12:182.16:038:05Waning Crescent20Mon
21Tue10:103.48:535.23:49-0.22:532.16:048:04New Moon21Tue
22Wed10:393.49:255.34:19-0.33:262.06:058:04New Moon22Wed
23Thu11:083.59:575.34:48-0.44:002.06:058:03New Moon23Thu
24Fri11:373.510:295.25:17-0.34:332.06:068:02New Moon24Fri
25Sat12:073.65:47-0.25:102.06:078:02Waxing Crescent25Sat
26Sun12:403.66:170.05:502.06:078:01Waxing Crescent26Sun
27Mon1:153.76:470.26:372.16:088:00Waxing Crescent27Mon
28Tue12:154.31:533.87:190.57:362.16:098:00Waxing Crescent28Tue
29Wed1:013.82:363.97:540.98:542.06:097:59First Quarter29Wed
30Thu2:053.33:264.18:341.210:271.76:107:58First Quarter30Thu
31Fri3:412.94:224.49:261.611:531.26:117:57First 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 10:28 pm — 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 74% 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 Waning Gibbous (74% 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