Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 4h 28m at 9:08 pm (1.4 ft)
Next high tide (tomorrow) : 2:30 am (2.8 ft)
Sunset today : 7:54 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jul 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:553.49:395.84:30-1.13:351.95:528:11New Moon1Fri
2Sat11:393.510:195.75:11-1.14:182.05:538:11New Moon2Sat
3Sun12:233.45:52-0.95:022.15:538:11Waxing Crescent3Sun
4Mon1:073.46:31-0.65:472.25:548:11Waxing Crescent4Mon
5Tue1:523.47:10-0.36:372.35:548:11Waxing Crescent5Tue
6Wed12:194.52:393.57:490.17:382.45:558:10Waxing Crescent6Wed
7Thu1:034.03:263.68:280.58:552.45:558:10First Quarter7Thu
8Fri1:573.54:123.79:080.910:282.25:568:10First Quarter8Fri
9Sat3:103.04:553.99:501.311:551.85:568:10First Quarter9Sat
10Sun4:492.75:344.210:351.65:578:09First Quarter10Sun
11Mon6:292.66:114.412:581.311:23 AM1.95:578:09Waxing Gibbous11Mon
12Tue7:452.76:474.71:460.812:132.15:588:09Waxing Gibbous12Tue
13Wed8:392.97:235.02:250.31:002.15:598:08Waxing Gibbous13Wed
14Thu9:223.18:015.33:02-0.11:452.25:598:08Waxing Gibbous14Thu
15Fri10:003.28:395.63:38-0.52:272.16:008:08Full Moon15Fri
16Sat10:363.49:195.84:14-0.83:102.16:008:07Full Moon16Sat
17Sun11:133.510:005.94:52-1.03:532.06:018:07Full Moon17Sun
18Mon11:513.610:435.85:30-1.04:401.96:028:06Full Moon18Mon
19Tue12:323.76:10-0.95:311.96:028:06Waning Gibbous19Tue
20Wed1:153.96:50-0.76:291.96:038:05Waning Gibbous20Wed
21Thu12:195.02:014.07:32-0.37:391.86:048:05Waning Gibbous21Thu
22Fri1:164.32:514.38:160.29:031.76:048:04Third Quarter22Fri
23Sat2:293.73:454.59:040.810:381.46:058:03Third Quarter23Sat
24Sun4:053.14:414.89:581.36:068:03Third Quarter24Sun
25Mon5:562.95:385.112:060.811:00 AM1.76:068:02Third Quarter25Mon
26Tue7:283.06:325.31:160.212:062.06:078:01Waning Crescent26Tue
27Wed8:353.27:225.52:12-0.31:082.16:088:01Waning Crescent27Wed
28Thu9:243.48:085.72:59-0.62:032.16:088:00Waning Crescent28Thu
29Fri10:053.68:515.73:40-0.82:502.06:097:59New Moon29Fri
30Sat10:403.69:305.74:18-0.83:321.96:107:58New Moon30Sat
31Sun11:133.710:085.54:53-0.74:121.96:107:58New 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 11:49 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 transitional phase. Tonight's moon is 64% 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 Third Quarter (64% 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