Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 3h 05m at 5:09 pm (1.8 ft)
Next high tide : 10:59 pm (5.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:10 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jan 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:345.08:213.112:162.02:06-0.27:015:01Waning Crescent1Wed
2Thu7:095.28:533.212:572.02:37-0.57:015:02Waning Crescent2Thu
3Fri7:435.49:243.41:351.93:09-0.77:015:03New Moon3Fri
4Sat8:185.59:563.52:131.83:41-0.97:015:04New Moon4Sat
5Sun8:545.510:303.62:521.74:14-0.97:015:04New Moon5Sun
6Mon9:325.411:063.73:341.64:49-0.87:025:05Waxing Crescent6Mon
7Tue10:135.111:453.94:201.65:24-0.67:025:06Waxing Crescent7Tue
8Wed10:584.65:131.66:02-0.27:025:07Waxing Crescent8Wed
9Thu12:284.011:50 AM4.06:161.66:420.27:025:08Waxing Crescent9Thu
10Fri1:174.212:583.47:361.67:280.77:015:09First Quarter10Fri
11Sat2:134.42:332.89:111.38:231.27:015:10First Quarter11Sat
12Sun3:144.64:302.610:440.89:321.57:015:10First Quarter12Sun
13Mon4:164.96:052.811:570.210:471.77:015:11Waxing Gibbous13Mon
14Tue5:165.27:103.112:54-0.47:015:12Waxing Gibbous14Tue
15Wed6:095.57:593.31:41-0.87:015:13Waxing Gibbous15Wed
16Thu6:585.78:403.612:521.72:23-1.17:005:14Waxing Gibbous16Thu
17Fri7:435.89:173.71:421.53:02-1.27:005:15Full Moon17Fri
18Sat8:255.79:523.82:281.43:38-1.17:005:16Full Moon18Sat
19Sun9:055.510:263.93:111.34:12-0.96:595:17Full Moon19Sun
20Mon9:435.211:003.93:521.34:44-0.66:595:18Waning Gibbous20Mon
21Tue10:204.711:343.94:351.35:15-0.26:595:19Waning Gibbous21Tue
22Wed10:574.25:191.45:440.26:585:20Waning Gibbous22Wed
23Thu12:083.911:36 AM3.66:081.66:130.76:585:21Waning Gibbous23Thu
24Fri12:463.812:233.07:091.76:411.16:575:22Third Quarter24Fri
25Sat1:303.81:312.58:331.77:111.66:575:23Third Quarter25Sat
26Sun2:243.83:442.210:181.47:531.96:565:24Third Quarter26Sun
27Mon3:283.96:102.311:411.09:172.26:565:25Third Quarter27Mon
28Tue4:314.17:082.612:330.66:555:26Third Quarter28Tue
29Wed5:244.47:382.81:110.26:555:27Waning Crescent29Wed
30Thu6:094.78:043.01:44-0.26:545:28Waning Crescent30Thu
31Fri6:505.08:293.312:431.92:14-0.66:535:29Waning Crescent31Fri
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 8:04 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 spring phase. Tonight's moon is 95% 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 Waning Gibbous (95% 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