Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide (tomorrow) : 12:19 am (0.5 ft)
Next high tide : in 6h 31m at 3:59 pm (4.8 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 - Jan 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:015.17:173.21:170.07:015:01Waning Crescent1Tue
2Wed6:395.38:103.212:221.62:00-0.47:015:02Waning Crescent2Wed
3Thu7:145.48:533.31:031.72:38-0.67:015:03Waning Crescent3Thu
4Fri7:475.49:313.31:411.83:13-0.77:025:03New Moon4Fri
5Sat8:195.410:063.32:161.93:46-0.77:025:04New Moon5Sat
6Sun8:515.310:403.32:492.04:18-0.67:025:05New Moon6Sun
7Mon9:225.111:143.33:222.04:51-0.57:025:06New Moon7Mon
8Tue9:544.911:513.33:572.15:23-0.37:025:07Waxing Crescent8Tue
9Wed10:274.64:342.15:570.07:025:08Waxing Crescent9Wed
10Thu12:303.311:02 AM4.25:182.26:310.27:025:08Waxing Crescent10Thu
11Fri1:133.311:42 AM3.86:142.37:080.67:025:09Waxing Crescent11Fri
12Sat2:003.412:343.37:312.37:480.97:015:10First Quarter12Sat
13Sun2:483.61:552.89:122.18:341.27:015:11First Quarter13Sun
14Mon3:363.93:512.510:461.79:291.57:015:12First Quarter14Mon
15Tue4:224.25:342.611:511.010:291.77:015:13First Quarter15Tue
16Wed5:064.66:452.812:400.47:015:14Waxing Gibbous16Wed
17Thu5:505.07:383.01:23-0.37:005:15Waxing Gibbous17Thu
18Fri6:345.58:223.312:201.82:04-0.97:005:16Waxing Gibbous18Fri
19Sat7:185.99:043.51:101.72:46-1.37:005:17Full Moon19Sat
20Sun8:036.19:453.71:581.53:27-1.56:595:18Full Moon20Sun
21Mon8:496.210:273.82:471.44:09-1.66:595:19Full Moon21Mon
22Tue9:366.011:113.93:361.34:52-1.46:595:19Waning Gibbous22Tue
23Wed10:255.611:574.04:291.35:35-1.16:585:20Waning Gibbous23Wed
24Thu11:165.05:281.36:20-0.66:585:21Waning Gibbous24Thu
25Fri12:464.112:134.36:351.47:060.06:575:22Waning Gibbous25Fri
26Sat1:404.21:243.57:561.47:560.66:575:23Third Quarter26Sat
27Sun2:394.32:582.99:311.28:531.26:565:24Third Quarter27Sun
28Mon3:414.44:522.711:030.810:011.66:565:25Third Quarter28Mon
29Tue4:414.56:272.812:150.36:555:26Waning Crescent29Tue
30Wed5:354.77:313.01:09-0.16:545:27Waning Crescent30Wed
31Thu6:214.88:153.212:122.01:51-0.46:545:28Waning Crescent31Thu
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 8:09 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 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