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 (tomorrow) : 1:24 am (-0.1 ft)
Next high tide : in 5h 06m at 5:12 pm (5.1 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 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:274.410:115.14:22-0.14:191.06:327:22New Moon1Thu
2Fri10:554.510:464.84:510.14:561.06:337:21New Moon2Fri
3Sat11:224.411:224.45:180.55:321.16:347:20Waxing Crescent3Sat
4Sun11:504.411:594.05:440.86:121.26:347:18Waxing Crescent4Sun
5Mon12:194.36:101.26:561.36:357:17Waxing Crescent5Mon
6Tue12:423.512:524.26:361.67:521.56:367:16Waxing Crescent6Tue
7Wed1:383.11:344.07:042.09:091.66:367:14First Quarter7Wed
8Thu3:132.82:343.97:412.410:471.56:377:13First Quarter8Thu
9Fri5:432.83:583.99:052.76:387:12First Quarter9Fri
10Sat7:013.05:174.112:061.211:09 AM2.76:387:10First Quarter10Sat
11Sun7:343.36:174.412:590.812:242.56:397:09Waxing Gibbous11Sun
12Mon8:003.67:054.81:380.51:132.16:397:07Waxing Gibbous12Mon
13Tue8:253.97:485.12:120.21:541.76:407:06Waxing Gibbous13Tue
14Wed8:524.28:295.32:45-0.12:341.36:417:05Waxing Gibbous14Wed
15Thu9:204.69:115.43:17-0.23:150.96:417:03Full Moon15Thu
16Fri9:514.99:545.33:50-0.23:570.56:427:02Full Moon16Fri
17Sat10:255.110:395.14:240.04:420.36:437:01Full Moon17Sat
18Sun11:015.311:284.74:590.35:300.26:436:59Waning Gibbous18Sun
19Mon11:415.35:370.76:250.26:446:58Waning Gibbous19Mon
20Tue12:254.112:265.26:171.27:280.46:456:56Waning Gibbous20Tue
21Wed1:343.61:205.07:051.78:440.56:456:55Third Quarter21Wed
22Thu3:063.32:284.78:102.210:130.56:466:54Third Quarter22Thu
23Fri4:573.33:524.69:462.411:360.46:476:52Third Quarter23Fri
24Sat6:213.65:174.611:272.46:476:51Third Quarter24Sat
25Sun7:153.96:264.712:420.212:422.06:486:50Waning Crescent25Sun
26Mon7:554.27:214.91:330.11:361.76:496:48Waning Crescent26Mon
27Tue8:284.48:074.92:140.02:201.36:506:47Waning Crescent27Tue
28Wed8:574.68:474.92:490.12:581.06:506:46Waning Crescent28Wed
29Thu9:234.79:244.83:190.33:330.86:516:44New Moon29Thu
30Fri9:474.89:584.63:460.54:060.66:526:43New Moon30Fri
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 9:18 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 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