Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 10:08 am (2.5 ft)
Next high tide : in 5h 38m at 7:14 am (2.6 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 - Sep 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:223.47:144.61:560.51:212.36:327:23Waxing Gibbous1Fri
2Sat8:463.67:524.92:290.31:592.06:337:21Waxing Gibbous2Sat
3Sun9:093.88:275.12:590.12:331.86:337:20Waxing Gibbous3Sun
4Mon9:334.09:015.23:270.03:061.56:347:19Full Moon4Mon
5Tue9:584.29:365.23:55-0.13:411.26:357:17Full Moon5Tue
6Wed10:254.410:125.14:230.04:181.06:357:16Full Moon6Wed
7Thu10:544.610:524.94:520.14:580.96:367:15Full Moon7Thu
8Fri11:264.711:354.55:220.45:420.86:377:13Waning Gibbous8Fri
9Sat12:014.85:550.76:340.86:377:12Waning Gibbous9Sat
10Sun12:264.012:434.86:301.27:360.96:387:11Waning Gibbous10Sun
11Mon1:323.51:344.77:121.68:560.96:397:09Third Quarter11Mon
12Tue3:063.12:414.68:102.110:290.76:397:08Third Quarter12Tue
13Wed5:063.14:034.79:402.411:520.46:407:06Third Quarter13Wed
14Thu6:333.45:234.811:212.46:417:05Third Quarter14Thu
15Fri7:263.76:305.112:560.112:382.16:417:04Waning Crescent15Fri
16Sat8:074.17:275.31:46-0.21:351.76:427:02Waning Crescent16Sat
17Sun8:424.48:155.42:29-0.42:241.36:437:01Waning Crescent17Sun
18Mon9:154.69:005.43:07-0.43:070.96:437:00New Moon18Mon
19Tue9:464.89:425.33:42-0.23:480.76:446:58New Moon19Tue
20Wed10:174.910:225.04:140.04:280.66:456:57New Moon20Wed
21Thu10:464.911:024.64:450.45:080.56:456:55New Moon21Thu
22Fri11:164.811:434.15:140.85:490.66:466:54Waxing Crescent22Fri
23Sat11:454.75:421.26:320.86:476:53Waxing Crescent23Sat
24Sun12:293.712:164.56:091.77:231.06:476:51Waxing Crescent24Sun
25Mon1:263.212:524.26:372.18:271.26:486:50Waxing Crescent25Mon
26Tue2:532.91:404.07:102.59:531.36:496:49First Quarter26Tue
27Wed5:232.92:583.88:222.811:221.26:496:47First Quarter27Wed
28Thu6:503.24:353.810:572.96:506:46First Quarter28Thu
29Fri7:213.45:494.012:250.912:202.76:516:45First Quarter29Fri
30Sat7:443.76:424.31:100.71:072.36:516:43Waxing 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 8:41 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