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 41m 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 - Dec 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:133.010:53 AM4.84:332.77:060.06:434:50Waxing Crescent1Thu
2Fri2:303.111:49 AM4.45:442.98:050.16:444:50First Quarter2Fri
3Sat3:323.41:074.17:432.99:050.26:454:50First Quarter3Sat
4Sun4:153.72:433.89:402.610:000.46:464:50First Quarter4Sun
5Mon4:504.24:153.611:011.910:490.56:474:50First Quarter5Mon
6Tue5:244.75:323.612:011.16:474:50Waxing Gibbous6Tue
7Wed5:585.26:393.612:520.36:484:50Waxing Gibbous7Wed
8Thu6:345.77:393.712:180.91:40-0.46:494:50Waxing Gibbous8Thu
9Fri7:116.08:343.71:001.22:26-1.06:504:50Full Moon9Fri
10Sat7:506.29:283.61:411.43:12-1.36:504:50Full Moon10Sat
11Sun8:306.310:213.62:231.63:58-1.46:514:51Full Moon11Sun
12Mon9:116.111:153.53:061.94:45-1.26:524:51Full Moon12Mon
13Tue9:545.73:512.15:33-1.06:524:51Waning Gibbous13Tue
14Wed12:133.410:39 AM5.34:412.36:23-0.66:534:51Waning Gibbous14Wed
15Thu1:163.411:28 AM4.75:402.57:16-0.26:544:52Waning Gibbous15Thu
16Fri2:233.412:244.26:582.78:100.26:544:52Third Quarter16Fri
17Sat3:253.61:343.68:382.69:040.66:554:52Third Quarter17Sat
18Sun4:153.83:013.210:172.39:550.96:564:53Third Quarter18Sun
19Mon4:544.04:313.011:311.810:411.26:564:53Third Quarter19Mon
20Tue5:264.35:472.912:231.36:574:54Waning Crescent20Tue
21Wed5:534.56:482.91:030.86:574:54Waning Crescent21Wed
22Thu6:204.77:373.01:380.36:584:55Waning Crescent22Thu
23Fri6:475.08:203.112:301.82:110.06:584:55Waning Crescent23Fri
24Sat7:155.28:593.21:021.92:44-0.46:584:56New Moon24Sat
25Sun7:455.39:373.21:352.03:17-0.66:594:56New Moon25Sun
26Mon8:175.510:163.22:082.03:52-0.76:594:57New Moon26Mon
27Tue8:525.510:573.22:432.14:29-0.87:004:58New Moon27Tue
28Wed9:285.411:403.23:202.15:09-0.87:004:58Waxing Crescent28Wed
29Thu10:085.34:032.25:50-0.67:004:59Waxing Crescent29Thu
30Fri12:283.310:53 AM4.94:552.36:34-0.47:005:00Waxing Crescent30Fri
31Sat1:183.411:45 AM4.56:022.47:20-0.17:015:00Waxing Crescent31Sat
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