Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 08m at 6:27 am (0.6 ft)
Next high tide : 12:42 pm (4.6 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Nov 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:415.39:393.82:401.33:380.06:165:06Full Moon1Thu
2Fri9:075.410:243.53:041.54:16-0.16:175:05Full Moon2Fri
3Sat9:375.311:173.33:301.84:59-0.16:185:04Waning Gibbous3Sat
4Sun10:115.23:582.15:500.06:195:03Waning Gibbous4Sun
5Mon12:273.110:52 AM5.04:312.56:530.16:205:02Waning Gibbous5Mon
6Tue2:073.011:48 AM4.75:202.88:060.26:215:02Third Quarter6Tue
7Wed3:513.21:074.47:083.09:220.26:225:01Third Quarter7Wed
8Thu4:473.62:454.29:252.910:270.16:235:00Third Quarter8Thu
9Fri5:244.04:144.210:552.311:200.16:234:59Third Quarter9Fri
10Sat5:564.45:264.311:561.66:244:59Waning Crescent10Sat
11Sun6:274.96:274.412:040.112:470.96:254:58Waning Crescent11Sun
12Mon6:595.37:214.412:440.31:330.26:264:57Waning Crescent12Mon
13Tue7:315.78:124.31:210.52:18-0.36:274:57New Moon13Tue
14Wed8:035.99:024.11:570.83:01-0.66:284:56New Moon14Wed
15Thu8:365.99:523.92:311.23:44-0.86:294:55New Moon15Thu
16Fri9:095.810:453.63:051.64:29-0.76:304:55New Moon16Fri
17Sat9:445.611:433.43:391.95:15-0.56:314:54Waxing Crescent17Sat
18Sun10:195.24:142.36:05-0.26:324:54Waxing Crescent18Sun
19Mon12:533.210:58 AM4.74:532.67:010.16:334:53Waxing Crescent19Mon
20Tue2:233.211:45 AM4.35:482.98:040.46:344:53Waxing Crescent20Tue
21Wed3:543.312:523.87:373.19:100.66:344:53First Quarter21Wed
22Thu4:493.62:263.59:532.910:100.76:354:52First Quarter22Thu
23Fri5:223.83:583.411:132.510:580.86:364:52First Quarter23Fri
24Sat5:464.05:083.412:022.06:374:51First Quarter24Sat
25Sun6:084.36:033.512:391.56:384:51Waxing Gibbous25Sun
26Mon6:294.66:503.512:081.01:121.06:394:51Waxing Gibbous26Mon
27Tue6:514.97:333.512:381.11:440.56:404:51Waxing Gibbous27Tue
28Wed7:155.28:153.61:061.32:170.16:414:50Waxing Gibbous28Wed
29Thu7:415.48:573.51:341.42:52-0.36:424:50Full Moon29Thu
30Fri8:105.69:413.52:041.63:29-0.66:424:50Full Moon30Fri
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 9:34 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 spring phase. Tonight's moon is 19% 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 Waxing Crescent (19% 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