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 1h 27m 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 - Nov 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:583.011:22 AM4.84:592.47:250.47:166:06Waxing Crescent1Tue
2Wed2:302.812:004.65:122.78:330.57:176:05Waxing Crescent2Wed
3Thu12:584.39:520.57:186:04First Quarter3Thu
4Fri6:163.32:334.18:373.211:010.47:196:03First Quarter4Fri
5Sat6:253.64:184.111:072.911:550.27:206:02First Quarter5Sat
6Sun5:454.04:404.211:182.311:400.26:215:01First Quarter6Sun
7Mon6:104.45:454.412:111.66:225:01Waxing Gibbous7Mon
8Tue6:374.96:424.512:190.212:580.86:235:00Waxing Gibbous8Tue
9Wed7:075.47:354.512:560.31:430.16:244:59Waxing Gibbous9Wed
10Thu7:395.88:284.31:330.52:29-0.56:244:58Full Moon10Thu
11Fri8:136.19:214.12:090.83:15-0.96:254:58Full Moon11Fri
12Sat8:506.210:173.92:461.24:03-1.16:264:57Full Moon12Sat
13Sun9:296.111:183.63:241.64:54-1.06:274:56Waning Gibbous13Sun
14Mon10:115.84:042.05:49-0.76:284:56Waning Gibbous14Mon
15Tue12:303.410:57 AM5.34:512.46:50-0.46:294:55Waning Gibbous15Tue
16Wed1:583.311:52 AM4.85:532.87:59-0.16:304:55Waning Gibbous16Wed
17Thu3:313.41:044.27:363.09:110.26:314:54Third Quarter17Thu
18Fri4:383.72:363.99:392.810:160.46:324:54Third Quarter18Fri
19Sat5:214.04:053.711:052.411:070.66:334:53Third Quarter19Sat
20Sun5:534.25:153.612:021.96:344:53Third Quarter20Sun
21Mon6:194.46:113.612:441.46:344:52Waning Crescent21Mon
22Tue6:414.66:573.612:200.91:200.96:354:52Waning Crescent22Tue
23Wed7:024.97:393.612:481.21:520.56:364:52Waning Crescent23Wed
24Thu7:225.08:183.51:121.42:230.26:374:51Waning Crescent24Thu
25Fri7:445.28:563.41:361.52:54-0.16:384:51New Moon25Fri
26Sat8:085.39:363.42:001.73:27-0.26:394:51New Moon26Sat
27Sun8:335.410:193.22:251.94:01-0.36:404:51New Moon27Sun
28Mon9:025.311:063.12:522.14:40-0.36:414:50New Moon28Mon
29Tue9:335.23:202.35:22-0.36:424:50Waxing Crescent29Tue
30Wed12:033.010:10 AM5.13:512.56:11-0.26:424:50Waxing Crescent30Wed
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