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 2h 29m 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 - Aug 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:352.85:204.810:321.96:117:56First Quarter1Sat
2Sun7:052.96:165.212:590.511:45 AM2.06:127:56Waxing Gibbous2Sun
3Mon8:063.27:095.61:52-0.112:512.06:137:55Waxing Gibbous3Mon
4Tue8:553.57:596.02:39-0.71:491.86:147:54Waxing Gibbous4Tue
5Wed9:373.88:486.23:23-1.02:421.66:147:53Full Moon5Wed
6Thu10:184.09:366.34:06-1.33:321.46:157:52Full Moon6Thu
7Fri10:584.210:236.14:48-1.24:221.26:167:51Full Moon7Fri
8Sat11:394.411:105.75:29-1.05:131.26:167:50Waning Gibbous8Sat
9Sun12:214.46:09-0.66:071.26:177:49Waning Gibbous9Sun
10Mon1:054.46:50-0.17:061.36:187:48Waning Gibbous10Mon
11Tue12:524.41:534.47:320.58:151.46:187:47Waning Gibbous11Tue
12Wed1:553.72:454.48:161.19:401.46:197:46Third Quarter12Wed
13Thu3:203.13:454.39:071.711:161.36:207:45Third Quarter13Thu
14Fri5:182.94:504.410:132.16:207:44Third Quarter14Fri
15Sat7:033.05:514.512:370.911:32 AM2.46:217:43Third Quarter15Sat
16Sun8:073.26:434.61:360.612:412.46:227:41Waning Crescent16Sun
17Mon8:473.47:274.82:190.31:322.36:237:40Waning Crescent17Mon
18Tue9:173.58:045.02:540.12:112.26:237:39Waning Crescent18Tue
19Wed9:423.68:385.13:240.02:452.06:247:38Waning Crescent19Wed
20Thu10:053.79:115.23:51-0.13:171.86:257:37New Moon20Thu
21Fri10:283.89:425.24:18-0.13:491.76:257:36New Moon21Fri
22Sat10:523.910:145.14:44-0.14:211.66:267:34New Moon22Sat
23Sun11:184.010:474.95:100.04:571.56:277:33New Moon23Sun
24Mon11:454.111:234.65:360.25:351.46:277:32Waxing Crescent24Mon
25Tue12:154.26:030.56:191.46:287:31Waxing Crescent25Tue
26Wed12:034.212:484.36:320.97:141.56:297:30Waxing Crescent26Wed
27Thu12:533.71:294.37:031.38:241.46:297:28Waxing Crescent27Thu
28Fri2:023.12:214.47:411.79:561.36:307:27First Quarter28Fri
29Sat3:522.83:304.58:372.111:290.96:317:26First Quarter29Sat
30Sun5:572.94:484.710:082.46:317:24First Quarter30Sun
31Mon7:123.25:585.112:400.311:44 AM2.46:327:23Waxing Gibbous31Mon
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