Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 3h 20m at 1:10 pm (2.3 ft)
Next high tide : 7:21 pm (5.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:16 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Nov 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:375.04:332.16:050.27:176:06Waning Gibbous1Thu
2Fri12:313.211:07 AM4.85:002.36:480.47:176:05Waning Gibbous2Fri
3Sat1:303.011:42 AM4.65:302.67:380.67:186:04Waning Gibbous3Sat
4Sun1:503.011:26 AM4.25:132.87:360.76:195:03Waning Gibbous4Sun
5Mon3:203.112:273.96:423.08:400.86:205:02Third Quarter5Mon
6Tue4:163.41:563.68:572.99:400.96:215:01Third Quarter6Tue
7Wed4:493.73:313.510:302.510:310.96:225:01Third Quarter7Wed
8Thu5:164.14:483.611:291.911:140.96:235:00Third Quarter8Thu
9Fri5:434.55:513.712:161.26:244:59Waning Crescent9Fri
10Sat6:125.06:463.912:590.56:254:58Waning Crescent10Sat
11Sun6:445.57:384.012:321.01:42-0.26:264:58Waning Crescent11Sun
12Mon7:195.98:284.01:101.12:25-0.76:264:57New Moon12Mon
13Tue7:576.29:193.91:501.23:11-1.16:274:56New Moon13Tue
14Wed8:386.310:123.82:311.43:58-1.26:284:56New Moon14Wed
15Thu9:236.211:083.73:151.64:48-1.26:294:55Waxing Crescent15Thu
16Fri10:105.94:041.85:42-0.96:304:55Waxing Crescent16Fri
17Sat12:103.611:03 AM5.55:002.16:39-0.66:314:54Waxing Crescent17Sat
18Sun1:193.612:044.96:122.37:40-0.26:324:54First Quarter18Sun
19Mon2:313.81:194.37:452.48:440.26:334:53First Quarter19Mon
20Tue3:374.02:493.89:302.29:460.56:344:53First Quarter20Tue
21Wed4:314.34:193.510:571.710:420.86:354:52First Quarter21Wed
22Thu5:154.65:353.412:011.26:364:52Waxing Gibbous22Thu
23Fri5:534.86:383.412:510.76:374:52Waxing Gibbous23Fri
24Sat6:255.07:293.412:101.31:320.36:374:51Waxing Gibbous24Sat
25Sun6:545.28:123.412:461.62:070.06:384:51Waxing Gibbous25Sun
26Mon7:225.38:513.41:171.72:40-0.26:394:51Full Moon26Mon
27Tue7:495.39:273.41:471.93:11-0.36:404:51Full Moon27Tue
28Wed8:185.310:023.32:152.03:43-0.36:414:50Full Moon28Wed
29Thu8:475.310:393.32:452.14:15-0.36:424:50Full Moon29Thu
30Fri9:185.211:203.23:162.24:49-0.26:434:50Waning Gibbous30Fri
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 4:15 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 Waning 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