Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 6:15 pm (1.0 ft)
Next high tide : in 5h 53m at 12:08 pm (4.6 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waxing Crescent (12% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Oct 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:563.01:385.07:022.59:540.36:526:43First Quarter1Wed
2Thu5:203.13:034.78:272.911:240.16:526:41First Quarter2Thu
3Fri6:463.44:424.610:542.96:536:40First Quarter3Fri
4Sat7:283.86:044.712:33-0.112:272.66:546:39Waxing Gibbous4Sat
5Sun8:004.17:054.91:25-0.21:262.16:546:37Waxing Gibbous5Sun
6Mon8:274.37:545.02:07-0.22:101.66:556:36Waxing Gibbous6Mon
7Tue8:524.68:364.92:41-0.12:491.26:566:35Waxing Gibbous7Tue
8Wed9:154.79:134.83:100.13:240.96:576:33Full Moon8Wed
9Thu9:374.99:494.53:350.43:570.66:576:32Full Moon9Thu
10Fri9:575.010:244.23:580.74:290.56:586:31Full Moon10Fri
11Sat10:185.011:003.94:191.15:020.46:596:30Full Moon11Sat
12Sun10:385.011:393.54:391.55:370.47:006:28Waning Gibbous12Sun
13Mon11:004.94:561.86:160.57:006:27Waning Gibbous13Mon
14Tue12:263.211:24 AM4.75:112.27:020.77:016:26Waning Gibbous14Tue
15Wed1:352.811:52 AM4.55:162.58:050.97:026:25Waning Gibbous15Wed
16Thu12:294.29:341.07:036:23Third Quarter16Thu
17Fri1:394.011:040.97:036:22Third Quarter17Fri
18Sat7:473.43:403.910:323.37:046:21Third Quarter18Sat
19Sun7:293.65:134.112:060.612:072.97:056:20Third Quarter19Sun
20Mon7:373.86:164.312:480.412:542.47:066:19Waning Crescent20Mon
21Tue7:514.27:084.61:230.21:331.87:076:18Waning Crescent21Tue
22Wed8:104.67:554.81:540.12:121.17:076:17Waning Crescent22Wed
23Thu8:345.08:424.82:250.22:530.57:086:15Waning Crescent23Thu
24Fri9:015.49:304.72:560.33:35-0.17:096:14New Moon24Fri
25Sat9:315.810:204.43:270.64:20-0.57:106:13New Moon25Sat
26Sun9:046.010:144.03:001.04:08-0.76:115:12New Moon26Sun
27Mon9:416.011:163.63:341.45:01-0.86:125:11Waxing Crescent27Mon
28Tue10:235.84:111.96:01-0.66:125:10Waxing Crescent28Tue
29Wed12:333.311:12 AM5.44:532.47:11-0.36:135:09Waxing Crescent29Wed
30Thu2:163.212:145.05:532.88:32-0.16:145:08First Quarter30Thu
31Fri4:043.41:424.57:493.09:510.06:155:07First Quarter31Fri
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 3:11 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 spring phase. Tonight's moon is 12% 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 Waxing Crescent (12% 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