Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 2h 23m at 3:39 am (-1.2 ft)
Next high tide : 9:57 am (3.9 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jan 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:566.210:423.72:521.64:21-1.57:015:01Full Moon1Fri
2Sat9:436.011:253.93:431.65:03-1.37:015:02Waning Gibbous2Sat
3Sun10:325.54:391.55:45-0.97:015:03Waning Gibbous3Sun
4Mon12:104.111:25 AM4.85:411.56:27-0.47:025:04Waning Gibbous4Mon
5Tue12:594.212:254.06:541.57:110.27:025:04Third Quarter5Tue
6Wed1:514.41:413.38:221.47:580.87:025:05Third Quarter6Wed
7Thu2:484.53:252.79:591.18:531.47:025:06Third Quarter7Thu
8Fri3:474.75:242.611:260.69:591.87:025:07Third Quarter8Fri
9Sat4:454.86:542.812:320.17:025:08Waning Crescent9Sat
10Sun5:385.07:523.01:22-0.37:025:09Waning Crescent10Sun
11Mon6:255.18:333.112:112.22:04-0.67:025:09Waning Crescent11Mon
12Tue7:065.29:053.21:012.12:39-0.77:015:10Waning Crescent12Tue
13Wed7:435.39:323.31:422.03:11-0.77:015:11New Moon13Wed
14Thu8:175.39:583.42:171.93:40-0.77:015:12New Moon14Thu
15Fri8:495.210:233.52:511.84:07-0.67:015:13New Moon15Fri
16Sat9:195.010:493.53:241.74:34-0.57:015:14New Moon16Sat
17Sun9:504.811:163.63:591.74:59-0.27:005:15Waxing Crescent17Sun
18Mon10:214.411:443.74:361.75:240.07:005:16Waxing Crescent18Mon
19Tue10:534.05:181.75:480.47:005:17Waxing Crescent19Tue
20Wed12:153.711:31 AM3.46:091.86:120.86:595:18Waxing Crescent20Wed
21Thu12:493.812:192.97:151.86:371.26:595:19First Quarter21Thu
22Fri1:303.91:442.38:481.67:041.66:595:20First Quarter22Fri
23Sat2:234.14:322.110:341.27:492.06:585:21First Quarter23Sat
24Sun3:284.36:372.411:490.69:282.26:585:22First Quarter24Sun
25Mon4:334.77:222.712:41-0.16:575:23Waxing Gibbous25Mon
26Tue5:335.17:553.01:24-0.66:575:24Waxing Gibbous26Tue
27Wed6:265.68:263.312:132.02:03-1.16:565:25Waxing Gibbous27Wed
28Thu7:165.98:583.61:101.72:42-1.46:565:25Full Moon28Thu
29Fri8:036.19:323.92:011.43:19-1.66:555:26Full Moon29Fri
30Sat8:506.110:074.22:511.03:56-1.56:545:27Full Moon30Sat
31Sun9:365.710:444.43:410.84:33-1.16:545:28Full Moon31Sun
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 6:48 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 spring phase. Tonight's moon is 1% 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 near their weekly maximum.

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 New Moon (1% illuminated). This places San Nicolas Island, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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