Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide (tomorrow) : in 6h 53m at 2:06 am (0.3 ft)
Next high tide (tomorrow) : 9:02 am (2.9 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jun 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:473.39:425.44:32-0.73:391.75:498:02New Moon1Mon
2Tue11:333.210:145.35:10-0.74:112.05:498:03New Moon2Tue
3Wed12:213.15:48-0.64:432.25:488:04Waxing Crescent3Wed
4Thu1:123.06:28-0.45:182.45:488:04Waxing Crescent4Thu
5Fri2:113.07:10-0.25:582.65:488:05Waxing Crescent5Fri
6Sat3:183.07:570.16:552.75:488:05Waxing Crescent6Sat
7Sun12:414.14:223.28:460.38:242.85:488:06First Quarter7Sun
8Mon1:373.75:093.49:380.510:142.75:488:06First Quarter8Mon
9Tue2:523.35:433.610:280.711:422.35:488:07First Quarter9Tue
10Wed4:213.16:113.911:140.95:488:07First Quarter10Wed
11Thu5:433.06:374.312:421.811:56 AM1.05:488:07First Quarter11Thu
12Fri6:533.07:044.71:271.212:351.25:488:08Waxing Gibbous12Fri
13Sat7:523.17:335.12:080.51:121.45:488:08Waxing Gibbous13Sat
14Sun8:463.28:065.42:48-0.11:501.55:488:08Waxing Gibbous14Sun
15Mon9:363.38:435.83:28-0.62:301.65:488:09Full Moon15Mon
16Tue10:253.49:226.04:10-1.03:111.75:488:09Full Moon16Tue
17Wed11:153.410:056.04:54-1.33:551.85:488:09Full Moon17Wed
18Thu12:073.45:41-1.44:432.05:488:10Waning Gibbous18Thu
19Fri1:023.46:30-1.35:382.15:498:10Waning Gibbous19Fri
20Sat2:003.57:21-1.06:442.25:498:10Waning Gibbous20Sat
21Sun12:385.13:003.78:15-0.78:052.25:498:10Waning Gibbous21Sun
22Mon1:434.53:594.09:10-0.39:402.15:498:11Third Quarter22Mon
23Tue3:013.94:534.310:050.211:141.75:508:11Third Quarter23Tue
24Wed4:313.45:414.611:000.65:508:11Third Quarter24Wed
25Thu6:013.26:254.912:331.111:52 AM1.05:508:11Waning Crescent25Thu
26Fri7:213.17:055.21:350.512:411.35:518:11Waning Crescent26Fri
27Sat8:273.17:425.32:260.01:261.65:518:11Waning Crescent27Sat
28Sun9:223.28:175.43:09-0.32:071.85:518:11Waning Crescent28Sun
29Mon10:083.38:515.43:48-0.62:462.05:528:11New Moon29Mon
30Tue10:493.39:245.44:24-0.63:222.15:528:11New Moon30Tue
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 5:34 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 72% 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 Gibbous (72% 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