Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 40m at 8:07 pm (2.1 ft)
Next high tide (tomorrow) : 1:39 am (4.3 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Apr 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:203.611:350.76:457:18First Quarter1Fri
2Sat4:103.58:033.012:400.46:437:19First Quarter2Sat
3Sun5:393.88:113.312:172.61:230.16:427:19First Quarter3Sun
4Mon6:394.18:253.51:092.11:57-0.26:417:20Waxing Gibbous4Mon
5Tue7:284.48:443.91:481.72:28-0.46:407:21Waxing Gibbous5Tue
6Wed8:124.79:064.22:261.12:58-0.46:387:21Waxing Gibbous6Wed
7Thu8:554.89:324.63:050.63:28-0.46:377:22Full Moon7Thu
8Fri9:394.710:004.93:460.13:58-0.26:367:23Full Moon8Fri
9Sat10:254.510:325.24:29-0.44:300.26:347:24Full Moon9Sat
10Sun11:154.111:075.35:16-0.65:030.66:337:24Waning Gibbous10Sun
11Mon12:113.66:07-0.75:371.16:327:25Waning Gibbous11Mon
12Tue1:183.17:05-0.66:161.66:317:26Waning Gibbous12Tue
13Wed12:325.02:502.88:14-0.47:052.16:297:27Waning Gibbous13Wed
14Thu1:294.74:512.89:36-0.38:322.56:287:27Third Quarter14Thu
15Fri2:494.36:213.211:02-0.210:482.56:277:28Third Quarter15Fri
16Sat4:274.17:103.512:14-0.36:267:29Third Quarter16Sat
17Sun5:534.17:453.812:242.11:09-0.36:257:30Waning Crescent17Sun
18Mon6:594.28:154.11:261.61:52-0.36:237:30Waning Crescent18Mon
19Tue7:514.38:414.32:121.12:28-0.26:227:31Waning Crescent19Tue
20Wed8:364.29:054.52:510.72:580.16:217:32Waning Crescent20Wed
21Thu9:154.19:274.73:270.43:250.36:207:32New Moon21Thu
22Fri9:523.99:484.84:000.13:480.66:197:33New Moon22Fri
23Sat10:283.710:104.84:32-0.14:101.06:187:34New Moon23Sat
24Sun11:063.410:324.85:04-0.14:321.36:167:35New Moon24Sun
25Mon11:463.110:564.75:38-0.14:521.66:157:35Waxing Crescent25Mon
26Tue12:332.96:160.05:121.96:147:36Waxing Crescent26Tue
27Wed1:362.67:000.15:282.26:137:37Waxing Crescent27Wed
28Thu3:282.57:540.35:292.56:127:38Waxing Crescent28Thu
29Fri12:294.09:040.56:117:38First Quarter29Fri
30Sat1:283.87:003.010:240.59:392.96:107:39First Quarter30Sat
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 10:53 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 28% 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 Waxing Crescent (28% 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