Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 2h 12m at 9:42 am (0.5 ft)
Next high tide : 4:33 pm (4.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Sep 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:573.21:054.36:341.88:331.46:327:22First Quarter1Sun
2Mon2:142.71:504.36:472.110:151.36:337:21First Quarter2Mon
3Tue3:004.311:530.96:347:20First Quarter3Tue
4Wed4:324.56:347:18First Quarter4Wed
5Thu8:073.25:514.912:570.311:37 AM2.86:357:17Waxing Gibbous5Thu
6Fri8:253.56:535.31:44-0.212:532.56:367:16Waxing Gibbous6Fri
7Sat8:493.87:465.72:25-0.61:482.06:367:14Waxing Gibbous7Sat
8Sun9:164.18:356.03:02-0.82:361.56:377:13Waxing Gibbous8Sun
9Mon9:454.59:226.03:38-0.93:231.06:387:12Full Moon9Mon
10Tue10:164.810:095.74:13-0.74:110.66:387:10Full Moon10Tue
11Wed10:495.110:575.24:47-0.45:000.36:397:09Full Moon11Wed
12Thu11:245.211:484.65:210.15:520.36:397:08Waning Gibbous12Thu
13Fri12:015.35:550.76:490.36:407:06Waning Gibbous13Fri
14Sat12:473.812:415.16:291.47:560.56:417:05Waning Gibbous14Sat
15Sun2:043.21:294.97:042.09:200.66:417:03Third Quarter15Sun
16Mon4:132.92:324.57:502.611:000.66:427:02Third Quarter16Mon
17Tue6:483.14:014.39:443.06:437:01Third Quarter17Tue
18Wed7:443.45:314.412:240.411:57 AM2.96:436:59Third Quarter18Wed
19Thu8:143.76:384.51:220.21:062.66:446:58Waning Crescent19Thu
20Fri8:383.97:274.72:040.11:502.36:456:57Waning Crescent20Fri
21Sat8:594.08:054.92:370.12:231.96:456:55Waning Crescent21Sat
22Sun9:174.18:394.93:040.12:531.66:466:54Waning Crescent22Sun
23Mon9:344.39:104.93:270.23:221.36:476:52New Moon23Mon
24Tue9:514.49:414.73:480.33:521.16:476:51New Moon24Tue
25Wed10:094.610:124.54:080.54:220.96:486:50New Moon25Wed
26Thu10:284.710:454.24:270.84:550.76:496:48New Moon26Thu
27Fri10:494.811:223.84:461.15:310.76:496:47Waxing Crescent27Fri
28Sat11:114.85:041.56:120.76:506:46Waxing Crescent28Sat
29Sun12:063.411:36 AM4.85:211.87:020.86:516:44Waxing Crescent29Sun
30Mon1:052.912:084.75:352.28:100.96:526:43Waxing Crescent30Mon
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 1:07 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 neap phase. Tonight's moon is 49% 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 minimum.

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 First Quarter (49% illuminated). This places San Nicolas Island, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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