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 3h 59m at 11:08 pm (1.6 ft)
Next high tide (tomorrow) : 4:17 am (3.1 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 - Jun 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:263.08:285.13:21-0.12:151.75:498:02Waxing Gibbous1Sun
2Mon10:093.08:565.33:55-0.42:431.95:498:03Full Moon2Mon
3Tue10:523.09:275.44:30-0.63:142.05:488:03Full Moon3Tue
4Wed11:373.010:015.45:08-0.73:462.25:488:04Full Moon4Wed
5Thu12:262.95:49-0.84:222.35:488:04Waning Gibbous5Thu
6Fri1:202.96:34-0.75:042.45:488:05Waning Gibbous6Fri
7Sat2:193.07:21-0.66:002.55:488:05Waning Gibbous7Sat
8Sun12:104.93:163.28:12-0.57:182.65:488:06Waning Gibbous8Sun
9Mon1:094.54:083.59:04-0.29:002.55:488:06Third Quarter9Mon
10Tue2:224.04:513.99:560.010:422.15:488:07Third Quarter10Tue
11Wed3:513.65:314.310:460.45:488:07Third Quarter11Wed
12Thu5:233.36:104.812:041.411:34 AM0.75:488:07Waning Crescent12Thu
13Fri6:473.26:485.31:090.612:211.05:488:08Waning Crescent13Fri
14Sat8:013.27:285.72:04-0.11:071.45:488:08Waning Crescent14Sat
15Sun9:043.28:085.92:54-0.71:531.65:488:09Waning Crescent15Sun
16Mon10:013.38:496.03:40-1.12:381.85:488:09New Moon16Mon
17Tue10:533.39:316.04:26-1.33:232.05:488:09New Moon17Tue
18Wed11:433.310:145.85:10-1.34:092.15:488:09New Moon18Wed
19Thu12:323.35:54-1.14:552.25:488:10Waxing Crescent19Thu
20Fri1:213.36:39-0.85:442.35:498:10Waxing Crescent20Fri
21Sat2:123.37:22-0.56:392.45:498:10Waxing Crescent21Sat
22Sun12:254.63:043.48:06-0.17:472.55:498:10Waxing Crescent22Sun
23Mon1:134.13:533.58:490.39:112.55:498:11First Quarter23Mon
24Tue2:113.54:373.79:300.710:452.25:508:11First Quarter24Tue
25Wed3:263.05:143.910:111.15:508:11First Quarter25Wed
26Thu5:002.75:484.212:061.810:52 AM1.55:508:11First Quarter26Thu
27Fri6:342.66:194.41:071.311:33 AM1.85:518:11Waxing Gibbous27Fri
28Sat7:502.76:514.71:530.812:152.05:518:11Waxing Gibbous28Sat
29Sun8:472.87:245.02:310.312:572.25:518:11Waxing Gibbous29Sun
30Mon9:332.97:595.23:08-0.11:392.25:528:11Waxing Gibbous30Mon
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 1:42 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 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