Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 4h 29m at 7:09 pm (1.1 ft)
Next high tide (tomorrow) : 12:49 am (3.8 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - May 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:284.16:513.812:02-0.36:097:40First Quarter1Tue
2Wed5:514.17:254.212:241.912:53-0.36:087:41Waxing Gibbous2Wed
3Thu6:584.27:574.61:241.21:37-0.26:077:42Waxing Gibbous3Thu
4Fri7:564.28:285.02:130.62:150.06:067:42Waxing Gibbous4Fri
5Sat8:474.28:595.22:590.02:510.26:057:43Waxing Gibbous5Sat
6Sun9:364.09:295.43:42-0.43:250.66:047:44Full Moon6Sun
7Mon10:243.810:005.44:24-0.73:570.96:037:45Full Moon7Mon
8Tue11:123.610:315.35:06-0.84:281.36:037:45Full Moon8Tue
9Wed12:033.35:48-0.74:591.76:027:46Waning Gibbous9Wed
10Thu1:003.06:33-0.55:302.16:017:47Waning Gibbous10Thu
11Fri2:102.97:22-0.26:042.46:007:48Waning Gibbous11Fri
12Sat12:134.33:442.88:180.16:512.75:597:48Waning Gibbous12Sat
13Sun12:583.95:213.09:230.38:382.95:597:49Third Quarter13Sun
14Mon2:053.66:113.210:300.511:002.75:587:50Third Quarter14Mon
15Tue3:413.36:403.511:290.55:577:51Third Quarter15Tue
16Wed5:103.27:023.712:192.312:160.65:567:51Third Quarter16Wed
17Thu6:183.37:234.01:071.912:530.65:567:52Waning Crescent17Thu
18Fri7:113.47:444.31:451.41:250.75:557:53Waning Crescent18Fri
19Sat7:583.58:074.72:190.81:550.85:557:53Waning Crescent19Sat
20Sun8:433.58:325.02:530.32:241.05:547:54Waning Crescent20Sun
21Mon9:263.58:595.33:29-0.12:541.15:537:55New Moon21Mon
22Tue10:113.59:305.54:06-0.53:251.35:537:55New Moon22Tue
23Wed10:593.410:055.64:46-0.83:591.65:527:56New Moon23Wed
24Thu11:513.310:445.65:30-1.04:361.85:527:57New Moon24Thu
25Fri12:503.16:18-1.05:192.05:517:58Waxing Crescent25Fri
26Sat1:593.17:12-0.86:132.35:517:58Waxing Crescent26Sat
27Sun12:195.13:143.28:12-0.67:292.55:517:59Waxing Crescent27Sun
28Mon1:224.64:253.49:15-0.49:122.55:507:59First Quarter28Mon
29Tue2:404.25:213.810:19-0.210:552.15:508:00First Quarter29Tue
30Wed4:093.96:064.211:190.05:498:01First Quarter30Wed
31Thu5:353.76:464.612:161.612:110.25:498:01Waxing Gibbous31Thu
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 9:59 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 spring phase. Tonight's moon is 19% 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 Waxing Crescent (19% 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