Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 4:30 pm (1.9 ft)
Next high tide : in 4h 49m at 11:26 am (3.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Apr 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:244.58:224.31:381.22:10-0.46:437:19Waning Crescent1Sat
2Sun8:154.58:514.62:260.62:44-0.36:427:19Waning Crescent2Sun
3Mon9:014.49:184.93:090.23:160.06:417:20New Moon3Mon
4Tue9:444.29:455.03:49-0.23:450.36:397:21New Moon4Tue
5Wed10:263.910:125.14:28-0.44:120.76:387:22New Moon5Wed
6Thu11:083.610:395.05:06-0.44:381.16:377:22New Moon6Thu
7Fri11:523.211:074.85:45-0.35:021.56:367:23Waxing Crescent7Fri
8Sat12:422.96:27-0.15:251.86:347:24Waxing Crescent8Sat
9Sun1:472.67:150.25:442.16:337:24Waxing Crescent9Sun
10Mon12:114.23:472.48:150.45:482.46:327:25Waxing Crescent10Mon
11Tue12:543.99:340.66:307:26First Quarter11Tue
12Wed2:043.67:062.910:570.610:242.76:297:27First Quarter12Wed
13Thu3:473.47:123.111:590.56:287:27First Quarter13Thu
14Fri5:163.57:263.412:052.412:420.46:277:28First Quarter14Fri
15Sat6:203.67:413.712:571.91:160.46:267:29Waxing Gibbous15Sat
16Sun7:113.87:594.01:371.41:450.46:247:30Waxing Gibbous16Sun
17Mon7:563.98:204.42:140.82:120.46:237:30Waxing Gibbous17Mon
18Tue8:403.98:444.82:500.32:390.66:227:31Waxing Gibbous18Tue
19Wed9:243.99:115.23:28-0.23:080.76:217:32Full Moon19Wed
20Thu10:093.79:435.44:08-0.73:381.06:207:33Full Moon20Thu
21Fri10:583.510:185.64:51-0.94:111.26:197:33Full Moon21Fri
22Sat11:513.310:585.55:38-1.04:471.56:187:34Waning Gibbous22Sat
23Sun12:533.06:31-0.95:271.86:167:35Waning Gibbous23Sun
24Mon2:092.97:31-0.86:192.16:157:36Waning Gibbous24Mon
25Tue12:395.03:392.98:39-0.57:382.46:147:36Third Quarter25Tue
26Wed1:504.54:583.29:52-0.39:352.46:137:37Third Quarter26Wed
27Thu3:194.15:543.611:01-0.211:222.06:127:38Third Quarter27Thu
28Fri4:513.96:364.011:59-0.16:117:39Third Quarter28Fri
29Sat6:103.87:114.412:381.412:470.16:107:39Waning Crescent29Sat
30Sun7:153.87:434.71:360.81:280.46:097:40Waning Crescent30Sun
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 1:58 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 99% 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 Full Moon (99% 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