Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 6:15 pm (1.0 ft)
Next high tide : in 1h 14m at 12:08 pm (4.6 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - May 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:303.49:554.94:30-0.13:541.36:097:40New Moon1Thu
2Fri11:093.210:184.95:02-0.24:151.56:087:41New Moon2Fri
3Sat11:513.010:434.85:37-0.24:351.86:077:41Waxing Crescent3Sat
4Sun12:432.76:16-0.14:542.16:077:42Waxing Crescent4Sun
5Mon1:552.67:020.05:092.36:067:43Waxing Crescent5Mon
6Tue7:590.16:057:44Waxing Crescent6Tue
7Wed12:294.29:080.26:047:44First Quarter7Wed
8Thu1:364.06:273.110:210.29:502.96:037:45First Quarter8Thu
9Fri3:123.86:383.411:220.111:372.46:027:46First Quarter9Fri
10Sat4:463.86:573.812:100.16:017:47First Quarter10Sat
11Sun6:023.97:204.212:411.812:520.16:007:47Waxing Gibbous11Sun
12Mon7:064.07:474.81:321.01:300.16:007:48Waxing Gibbous12Mon
13Tue8:044.08:185.32:190.32:060.35:597:49Waxing Gibbous13Tue
14Wed8:594.08:515.73:05-0.42:430.65:587:49Full Moon14Wed
15Thu9:533.99:275.93:51-1.03:200.95:577:50Full Moon15Thu
16Fri10:493.710:066.04:39-1.33:581.35:577:51Full Moon16Fri
17Sat11:483.410:485.95:29-1.44:391.65:567:52Waning Gibbous17Sat
18Sun12:523.26:23-1.35:242.05:557:52Waning Gibbous18Sun
19Mon2:073.17:20-1.06:182.35:557:53Waning Gibbous19Mon
20Tue12:265.03:313.18:23-0.77:342.65:547:54Waning Gibbous20Tue
21Wed1:294.54:493.39:31-0.39:242.65:547:54Third Quarter21Wed
22Thu2:484.05:463.610:37-0.111:132.45:537:55Third Quarter22Thu
23Fri4:183.66:273.911:350.25:537:56Third Quarter23Fri
24Sat5:403.46:594.112:301.912:220.45:527:57Third Quarter24Sat
25Sun6:473.37:264.41:251.41:010.75:527:57Waning Crescent25Sun
26Mon7:423.37:494.62:070.91:331.05:517:58Waning Crescent26Mon
27Tue8:303.28:114.82:430.52:001.25:517:58Waning Crescent27Tue
28Wed9:133.28:335.03:160.12:261.55:507:59Waning Crescent28Wed
29Thu9:543.18:575.13:48-0.12:511.75:508:00New Moon29Thu
30Fri10:343.19:235.14:20-0.33:161.85:508:00New Moon30Fri
31Sat11:163.09:515.24:53-0.53:432.05:498:01New Moon31Sat
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 3:11 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 12% 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 Waxing Crescent (12% 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