Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide (tomorrow) : in 4h 48m at 1:24 am (-0.1 ft)
Next high tide (tomorrow) : 8:14 am (3.0 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Feb 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:263.85:072.311:181.39:242.06:535:29Third Quarter1Mon
2Tue4:264.06:292.512:150.86:525:30Third Quarter2Tue
3Wed5:184.37:142.812:570.36:525:31Waning Crescent3Wed
4Thu6:024.67:483.11:32-0.16:515:32Waning Crescent4Thu
5Fri6:435.08:183.312:361.82:05-0.56:505:33Waning Crescent5Fri
6Sat7:235.38:483.61:191.62:38-0.86:495:34Waning Crescent6Sat
7Sun8:025.59:203.82:011.33:12-1.06:495:35New Moon7Sun
8Mon8:425.69:544.02:431.13:46-1.16:485:36New Moon8Mon
9Tue9:245.510:304.23:270.94:22-0.96:475:36New Moon9Tue
10Wed10:085.211:094.34:140.84:59-0.76:465:37Waxing Crescent10Wed
11Thu10:564.611:524.45:060.85:38-0.26:455:38Waxing Crescent11Thu
12Fri11:504.06:050.86:190.36:445:39Waxing Crescent12Fri
13Sat12:414.412:583.37:170.97:070.86:435:40First Quarter13Sat
14Sun1:394.42:332.88:460.88:081.36:425:41First Quarter14Sun
15Mon2:474.44:322.710:230.69:291.76:415:42First Quarter15Mon
16Tue4:014.56:052.911:430.110:561.86:405:43First Quarter16Tue
17Wed5:104.77:053.212:42-0.36:395:44Waxing Gibbous17Wed
18Thu6:084.97:483.512:061.71:29-0.56:385:45Waxing Gibbous18Thu
19Fri6:565.18:233.71:011.52:09-0.76:375:46Waxing Gibbous19Fri
20Sat7:395.18:543.81:451.32:43-0.76:365:46Full Moon20Sat
21Sun8:165.19:223.92:241.13:14-0.66:355:47Full Moon21Sun
22Mon8:515.09:494.03:001.03:42-0.56:345:48Full Moon22Mon
23Tue9:244.810:154.03:340.94:09-0.26:335:49Full Moon23Tue
24Wed9:574.510:414.04:080.94:340.16:325:50Waning Gibbous24Wed
25Thu10:304.111:083.94:440.94:590.46:305:51Waning Gibbous25Thu
26Fri11:053.611:373.95:221.05:230.86:295:52Waning Gibbous26Fri
27Sat11:453.26:071.15:481.26:285:52Waning Gibbous27Sat
28Sun12:113.812:372.77:041.36:141.56:275:53Waning Gibbous28Sun
29Mon12:533.72:092.38:261.36:461.96:265:54Third Quarter29Mon
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 4:49 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 transitional phase. Tonight's moon is 31% 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 shifting between spring and neap.

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 (31% illuminated). This places San Nicolas Island, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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