Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide (tomorrow) : in 7h 27m at 12:19 am (0.5 ft)
Next high tide (tomorrow) : 7:14 am (2.6 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jun 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:593.16:26-0.35:212.35:498:02Waning Gibbous1Fri
2Sat1:543.07:07-0.16:002.45:498:02Waning Gibbous2Sat
3Sun2:583.07:520.16:532.65:488:03Waning Gibbous3Sun
4Mon12:404.04:043.18:420.38:172.75:488:04Third Quarter4Mon
5Tue1:353.64:573.39:360.510:082.65:488:04Third Quarter5Tue
6Wed2:533.35:363.610:290.711:382.25:488:05Third Quarter6Wed
7Thu4:263.16:084.011:190.85:488:05Third Quarter7Thu
8Fri5:493.16:384.312:391.712:040.95:488:06Waning Crescent8Fri
9Sat6:573.27:094.81:251.112:461.05:488:06Waning Crescent9Sat
10Sun7:553.37:425.22:080.41:261.15:488:06Waning Crescent10Sun
11Mon8:483.48:185.62:49-0.22:071.25:488:07Waning Crescent11Mon
12Tue9:383.58:565.93:31-0.72:481.35:488:07New Moon12Tue
13Wed10:293.69:386.14:15-1.13:311.55:488:08New Moon13Wed
14Thu11:203.610:226.05:01-1.34:181.65:488:08New Moon14Thu
15Fri12:143.65:49-1.45:081.85:488:08Waxing Crescent15Fri
16Sat1:113.66:39-1.26:051.95:488:09Waxing Crescent16Sat
17Sun12:025.42:123.77:32-0.97:142.15:488:09Waxing Crescent17Sun
18Mon1:004.93:163.88:28-0.58:382.15:488:09First Quarter18Mon
19Tue2:074.34:174.19:25-0.110:121.95:488:10First Quarter19Tue
20Wed3:283.75:144.310:240.311:411.55:488:10First Quarter20Wed
21Thu4:583.46:034.611:210.75:498:10First Quarter21Thu
22Fri6:233.26:454.912:531.012:141.05:498:10Waxing Gibbous22Fri
23Sat7:353.27:235.11:490.51:011.35:498:10Waxing Gibbous23Sat
24Sun8:333.27:585.22:360.11:421.65:498:11Waxing Gibbous24Sun
25Mon9:223.38:305.33:16-0.22:201.75:508:11Waxing Gibbous25Mon
26Tue10:043.39:005.33:52-0.42:541.95:508:11Full Moon26Tue
27Wed10:423.39:315.34:25-0.53:272.05:508:11Full Moon27Wed
28Thu11:183.310:025.24:58-0.53:592.05:518:11Full Moon28Thu
29Fri11:543.310:335.05:30-0.44:332.15:518:11Full Moon29Fri
30Sat12:313.36:04-0.35:082.25:528:11Waning Gibbous30Sat
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 3:46 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 42% 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 Third Quarter (42% 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