Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 00m at 9:42 am (0.5 ft)
Next high tide : 4:33 pm (4.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:49 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Oct 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:562.612:544.55:342.59:450.86:526:42First Quarter1Tue
2Wed2:134.411:180.66:536:40First Quarter2Wed
3Thu7:383.24:054.49:403.26:546:39First Quarter3Thu
4Fri7:293.55:344.712:220.211:52 AM2.86:546:38First Quarter4Fri
5Sat7:473.96:405.01:10-0.212:562.26:556:36Waxing Gibbous5Sat
6Sun8:104.37:345.31:50-0.41:471.66:566:35Waxing Gibbous6Sun
7Mon8:374.78:255.42:26-0.42:330.96:576:34Waxing Gibbous7Mon
8Tue9:055.29:135.33:01-0.33:180.36:576:32Full Moon8Tue
9Wed9:365.510:024.93:340.04:04-0.16:586:31Full Moon9Wed
10Thu10:075.710:524.54:070.44:51-0.46:596:30Full Moon10Thu
11Fri10:415.811:464.04:390.95:40-0.46:596:29Waning Gibbous11Fri
12Sat11:165.65:111.56:33-0.27:006:27Waning Gibbous12Sat
13Sun12:503.511:53 AM5.35:432.17:340.07:016:26Waning Gibbous13Sun
14Mon2:183.112:374.96:162.68:500.37:026:25Waning Gibbous14Mon
15Tue4:483.11:374.47:013.010:200.57:036:24Third Quarter15Tue
16Wed6:373.43:134.09:473.211:400.57:036:23Third Quarter16Wed
17Thu7:103.74:564.011:553.07:046:21Third Quarter17Thu
18Fri7:343.96:084.112:380.412:552.57:056:20Third Quarter18Fri
19Sat7:544.16:594.21:190.41:342.17:066:19Waning Crescent19Sat
20Sun8:124.27:414.31:500.42:071.67:066:18Waning Crescent20Sun
21Mon8:294.48:174.32:160.52:371.27:076:17Waning Crescent21Mon
22Tue8:454.78:514.22:380.73:060.97:086:16Waning Crescent22Tue
23Wed9:034.99:264.12:580.93:370.57:096:15New Moon23Wed
24Thu9:215.110:023.93:191.14:080.37:106:13New Moon24Thu
25Fri9:425.210:413.73:391.34:420.17:116:12New Moon25Fri
26Sat10:055.311:253.44:001.65:200.07:116:11New Moon26Sat
27Sun10:325.34:211.96:020.07:126:10Waxing Crescent27Sun
28Mon12:193.111:02 AM5.24:422.26:540.17:136:09Waxing Crescent28Mon
29Tue1:342.911:40 AM5.05:012.58:000.27:146:08Waxing Crescent29Tue
30Wed12:334.79:190.37:156:07First Quarter30Wed
31Thu1:554.410:370.27:166:06First Quarter31Thu
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 1:07 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 49% 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 First Quarter (49% 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