Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide (tomorrow) : 4:17 am (-1.1 ft)
Next high tide : in 3h 04m at 9:02 pm (6.2 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:18 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Sep 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:054.811:104.65:010.15:200.76:327:22Waxing Crescent1Mon
2Tue11:334.811:514.05:270.66:030.86:337:21Waxing Crescent2Tue
3Wed12:004.75:501.26:510.96:347:20Waxing Crescent3Wed
4Thu12:383.412:294.66:101.77:471.16:347:18Waxing Crescent4Thu
5Fri1:392.91:024.46:222.19:061.26:357:17First Quarter5Fri
6Sat3:542.51:504.16:002.510:541.26:367:16First Quarter6Sat
7Sun3:164.06:367:14First Quarter7Sun
8Mon5:014.012:221.06:377:13First Quarter8Mon
9Tue8:263.36:124.31:150.612:312.96:377:12Waxing Gibbous9Tue
10Wed8:323.57:004.61:510.41:172.56:387:10Waxing Gibbous10Wed
11Thu8:443.77:404.92:210.21:522.16:397:09Waxing Gibbous11Thu
12Fri9:003.98:165.12:470.02:261.76:397:08Waxing Gibbous12Fri
13Sat9:174.28:525.13:120.03:001.36:407:06Full Moon13Sat
14Sun9:384.59:295.13:360.03:360.96:417:05Full Moon14Sun
15Mon10:014.810:084.84:010.24:140.66:417:03Full Moon15Mon
16Tue10:275.110:504.44:260.54:560.36:427:02Full Moon16Tue
17Wed10:565.311:383.94:520.85:430.26:437:01Waning Gibbous17Wed
18Thu11:305.45:191.36:370.26:436:59Waning Gibbous18Thu
19Fri12:373.412:095.35:481.87:430.36:446:58Waning Gibbous19Fri
20Sat2:002.91:005.16:192.29:100.46:456:57Third Quarter20Sat
21Sun4:252.82:124.97:022.710:470.36:456:55Third Quarter21Sun
22Mon6:313.13:504.79:213.06:466:54Third Quarter22Mon
23Tue7:113.55:224.812:060.111:33 AM2.76:476:52Third Quarter23Tue
24Wed7:413.86:325.01:02-0.212:482.26:476:51Waning Crescent24Wed
25Thu8:094.27:285.21:46-0.31:421.76:486:50Waning Crescent25Thu
26Fri8:364.58:155.22:23-0.22:271.26:496:48Waning Crescent26Fri
27Sat9:024.88:595.02:55-0.13:080.76:496:47New Moon27Sat
28Sun9:275.09:394.73:240.23:470.46:506:46New Moon28Sun
29Mon9:525.210:194.43:500.64:250.26:516:44New Moon29Mon
30Tue10:165.210:594.04:141.05:020.26:526:43New Moon30Tue
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 12:39 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places San Nicolas Island, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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