Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 4h 30m at 5:12 am (-0.5 ft)
Next high tide : 11:26 am (3.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jun 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:483.410:346.15:22-1.74:251.85:498:02Full Moon1Tue
2Wed12:433.46:12-1.55:192.05:498:03Waning Gibbous2Wed
3Thu1:413.47:04-1.26:212.15:498:03Waning Gibbous3Thu
4Fri12:185.22:403.57:56-0.87:342.25:488:04Waning Gibbous4Fri
5Sat1:174.63:393.78:49-0.39:032.25:488:04Third Quarter5Sat
6Sun2:263.94:333.99:420.210:392.05:488:05Third Quarter6Sun
7Mon3:483.35:204.210:320.65:488:05Third Quarter7Mon
8Tue5:193.06:014.412:041.511:21 AM1.15:488:06Third Quarter8Tue
9Wed6:442.86:364.61:101.012:051.45:488:06Waning Crescent9Wed
10Thu7:552.87:084.82:000.512:451.75:488:07Waning Crescent10Thu
11Fri8:522.97:394.92:400.21:232.05:488:07Waning Crescent11Fri
12Sat9:382.98:095.13:16-0.11:582.15:488:08Waning Crescent12Sat
13Sun10:173.08:415.23:49-0.42:322.25:488:08New Moon13Sun
14Mon10:523.09:135.24:21-0.53:062.25:488:08New Moon14Mon
15Tue11:273.19:475.24:54-0.63:402.25:488:09New Moon15Tue
16Wed12:023.15:27-0.64:152.35:488:09New Moon16Wed
17Thu12:393.16:02-0.54:532.35:488:09Waxing Crescent17Thu
18Fri1:193.26:37-0.45:372.45:488:10Waxing Crescent18Fri
19Sat1:593.37:13-0.36:322.45:488:10Waxing Crescent19Sat
20Sun12:164.52:403.57:490.07:422.45:498:10Waxing Crescent20Sun
21Mon1:064.03:223.78:270.39:102.25:498:10First Quarter21Mon
22Tue2:133.44:044.19:080.710:431.75:498:10First Quarter22Tue
23Wed3:433.04:494.59:541.15:498:11First Quarter23Wed
24Thu5:292.75:354.912:041.110:46 AM1.45:508:11First Quarter24Thu
25Fri7:032.86:235.41:090.311:44 AM1.75:508:11Waxing Gibbous25Fri
26Sat8:172.97:125.82:03-0.412:441.95:508:11Waxing Gibbous26Sat
27Sun9:153.28:016.12:53-1.01:421.95:518:11Waxing Gibbous27Sun
28Mon10:043.48:516.33:40-1.42:371.95:518:11Full Moon28Mon
29Tue10:493.59:396.34:26-1.63:301.85:518:11Full Moon29Tue
30Wed11:333.610:276.15:10-1.64:231.85:528:11Full Moon30Wed
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 8:19 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 99% 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 Full Moon (99% 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