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 53m 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 - Jul 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:123.08:365.53:43-0.52:202.35:528:11Full Moon1Tue
2Wed10:503.19:145.74:20-0.83:012.25:538:11Full Moon2Wed
3Thu11:273.29:545.74:57-0.93:432.25:538:11Full Moon3Thu
4Fri12:053.35:35-1.04:282.25:538:11Full Moon4Fri
5Sat12:453.46:15-1.05:172.25:548:11Waning Gibbous5Sat
6Sun1:273.56:55-0.86:152.25:548:10Waning Gibbous6Sun
7Mon12:085.12:123.87:36-0.57:252.15:558:10Waning Gibbous7Mon
8Tue1:034.52:584.08:180.08:492.05:558:10Third Quarter8Tue
9Wed2:103.83:474.49:020.510:241.65:568:10Third Quarter9Wed
10Thu3:393.24:374.79:491.011:541.05:578:09Third Quarter10Thu
11Fri5:282.85:285.110:431.55:578:09Third Quarter11Fri
12Sat7:102.86:195.41:060.311:43 AM1.95:588:09Waning Crescent12Sat
13Sun8:273.07:085.62:04-0.312:452.15:588:08Waning Crescent13Sun
14Mon9:243.27:565.82:54-0.71:432.25:598:08Waning Crescent14Mon
15Tue10:093.48:425.93:38-1.02:352.26:008:08New Moon15Tue
16Wed10:483.59:255.84:19-1.13:222.16:008:07New Moon16Wed
17Thu11:243.510:065.74:58-1.04:062.06:018:07New Moon17Thu
18Fri11:593.610:445.45:34-0.84:482.06:018:06New Moon18Fri
19Sat12:333.66:08-0.65:312.06:028:06Waxing Crescent19Sat
20Sun1:073.66:41-0.26:162.16:038:05Waxing Crescent20Sun
21Mon1:423.77:110.27:072.16:038:05Waxing Crescent21Mon
22Tue12:374.12:183.77:400.68:092.16:048:04Waxing Crescent22Tue
23Wed1:223.52:563.88:071.19:312.06:058:03First Quarter23Wed
24Thu2:242.93:394.08:341.511:091.86:058:03First Quarter24Thu
25Fri4:112.54:274.19:052.06:068:02First Quarter25Fri
26Sat6:462.45:184.312:331.39:52 AM2.36:078:01First Quarter26Sat
27Sun8:202.76:094.61:300.811:12 AM2.56:078:01Waxing Gibbous27Sun
28Mon9:012.96:564.92:130.312:282.66:088:00Waxing Gibbous28Mon
29Tue9:293.17:415.32:50-0.11:262.56:097:59Waxing Gibbous29Tue
30Wed9:563.38:235.63:25-0.52:142.36:097:59Waxing Gibbous30Wed
31Thu10:233.49:055.94:00-0.82:582.16:107:58Full Moon31Thu
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