Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 17m at 10:08 am (2.5 ft)
Next high tide : 5:12 pm (5.1 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Sep 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:074.310:574.45:050.45:081.26:327:22Full Moon1Tue
2Wed11:274.411:304.05:240.85:441.26:337:21Waning Gibbous2Wed
3Thu11:494.45:421.16:241.26:347:20Waning Gibbous3Thu
4Fri12:073.512:134.45:571.57:131.36:347:18Waning Gibbous4Fri
5Sat12:543.012:424.46:081.98:201.46:357:17Waning Gibbous5Sat
6Sun2:162.51:234.36:022.310:051.36:367:16Third Quarter6Sun
7Mon2:324.211:510.96:367:14Third Quarter7Mon
8Tue4:144.36:377:13Third Quarter8Tue
9Wed8:233.25:394.712:540.511:36 AM3.06:387:12Waning Crescent9Wed
10Thu8:253.56:415.11:370.012:492.66:387:10Waning Crescent10Thu
11Fri8:413.87:335.52:14-0.41:402.16:397:09Waning Crescent11Fri
12Sat9:024.18:215.82:48-0.62:261.56:407:08Waning Crescent12Sat
13Sun9:284.59:075.83:20-0.73:120.96:407:06New Moon13Sun
14Mon9:564.99:535.63:53-0.53:580.56:417:05New Moon14Mon
15Tue10:275.310:425.14:25-0.24:460.16:427:04New Moon15Tue
16Wed11:015.511:334.54:570.35:370.06:427:02Waxing Crescent16Wed
17Thu11:375.55:290.86:340.06:437:01Waxing Crescent17Thu
18Fri12:323.812:165.46:011.57:390.26:436:59Waxing Crescent18Fri
19Sat1:493.21:035.16:352.19:000.46:446:58First Quarter19Sat
20Sun3:542.92:074.77:142.610:380.46:456:57First Quarter20Sun
21Mon6:373.13:414.59:043.06:456:55First Quarter21Mon
22Tue7:293.55:184.512:040.311:40 AM3.06:466:54First Quarter22Tue
23Wed7:593.76:294.61:050.112:562.66:476:53Waxing Gibbous23Wed
24Thu8:233.97:214.81:500.01:432.26:476:51Waxing Gibbous24Thu
25Fri8:444.18:024.82:250.02:191.86:486:50Waxing Gibbous25Fri
26Sat9:034.38:374.82:530.12:501.46:496:48Waxing Gibbous26Sat
27Sun9:204.49:094.73:160.33:201.16:496:47Full Moon27Sun
28Mon9:374.69:404.53:370.53:490.96:506:46Full Moon28Mon
29Tue9:544.810:124.33:560.74:190.76:516:44Full Moon29Tue
30Wed10:134.910:454.04:141.04:510.66:526:43Full Moon30Wed
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 1:40 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 31% 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 (31% 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