Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 8:54 am (0.0 ft)
Next high tide : in 2h 27m at 1:39 am (4.3 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Aug 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:493.47:425.92:28-0.61:282.06:117:57Waxing Gibbous1Mon
2Tue9:343.68:316.13:14-1.02:231.96:117:56Full Moon2Tue
3Wed10:153.89:196.23:57-1.23:141.76:127:55Full Moon3Wed
4Thu10:543.910:046.14:39-1.24:031.66:137:55Full Moon4Thu
5Fri11:324.110:485.85:19-1.14:501.56:137:54Full Moon5Fri
6Sat12:104.15:57-0.75:391.56:147:53Waning Gibbous6Sat
7Sun12:494.16:34-0.36:301.66:157:52Waning Gibbous7Sun
8Mon12:174.61:294.17:100.37:281.76:167:51Waning Gibbous8Mon
9Tue1:064.02:124.17:450.98:381.76:167:50Waning Gibbous9Tue
10Wed2:063.32:594.18:211.410:071.76:177:49Third Quarter10Wed
11Thu3:382.83:534.19:031.911:451.46:187:48Third Quarter11Thu
12Fri5:582.64:534.210:022.36:187:47Third Quarter12Fri
13Sat7:442.85:524.312:591.011:25 AM2.66:197:46Third Quarter13Sat
14Sun8:343.16:424.61:490.612:362.66:207:45Waning Crescent14Sun
15Mon9:043.37:254.82:280.31:282.56:207:44Waning Crescent15Mon
16Tue9:293.48:035.13:000.02:082.36:217:42Waning Crescent16Tue
17Wed9:523.58:395.33:30-0.22:432.16:227:41Waning Crescent17Wed
18Thu10:163.79:145.53:59-0.33:171.96:227:40New Moon18Thu
19Fri10:403.89:485.54:27-0.43:531.76:237:39New Moon19Fri
20Sat11:063.910:245.44:56-0.44:301.66:247:38New Moon20Sat
21Sun11:344.111:025.15:24-0.25:111.46:257:37Waxing Crescent21Sun
22Mon12:054.25:540.05:571.46:257:36Waxing Crescent22Mon
23Tue12:394.46:240.46:511.36:267:34Waxing Crescent23Tue
24Wed12:334.11:184.56:560.97:591.36:277:33Waxing Crescent24Wed
25Thu1:363.42:064.67:321.49:251.26:277:32First Quarter25Thu
26Fri3:112.93:084.78:181.911:020.86:287:31First Quarter26Fri
27Sat5:252.84:234.89:312.36:297:29First Quarter27Sat
28Sun7:063.15:385.112:250.311:12 AM2.56:297:28Waxing Gibbous28Sun
29Mon8:023.46:435.41:26-0.212:362.46:307:27Waxing Gibbous29Mon
30Tue8:423.77:385.72:16-0.61:392.16:317:26Waxing Gibbous30Tue
31Wed9:164.08:275.82:58-0.82:301.76:317:24Waxing Gibbous31Wed
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 5:16 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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