Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 7:46 pm (1.6 ft)
Next high tide : in 5h 52m at 1:22 pm (4.3 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Sep 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:144.29:485.44:07-0.23:541.26:337:22New Moon1Mon
2Tue10:414.410:265.24:37-0.14:331.16:337:20New Moon2Tue
3Wed11:124.611:074.95:070.15:150.96:347:19Waxing Crescent3Wed
4Thu11:454.711:544.45:380.46:030.96:357:18Waxing Crescent4Thu
5Fri12:234.76:120.86:590.96:357:16Waxing Crescent5Fri
6Sat12:493.91:084.76:491.28:090.96:367:15Waxing Crescent6Sat
7Sun2:023.42:044.77:351.79:360.96:377:14First Quarter7Sun
8Mon3:473.03:174.68:402.211:080.66:377:12First Quarter8Mon
9Tue5:423.14:404.710:172.46:387:11First Quarter9Tue
10Wed6:583.45:555.012:240.211:51 AM2.36:397:09Waxing Gibbous10Wed
11Thu7:473.86:565.21:21-0.11:012.06:397:08Waxing Gibbous11Thu
12Fri8:264.17:495.42:08-0.41:551.66:407:07Waxing Gibbous12Fri
13Sat9:004.48:355.52:49-0.52:411.36:417:05Waxing Gibbous13Sat
14Sun9:324.69:175.43:26-0.43:231.06:417:04Full Moon14Sun
15Mon10:024.79:575.23:59-0.24:030.86:427:03Full Moon15Mon
16Tue10:324.810:364.94:310.14:410.76:437:01Full Moon16Tue
17Wed11:004.811:154.55:010.45:200.76:437:00Waning Gibbous17Wed
18Thu11:294.711:564.05:290.96:000.86:446:58Waning Gibbous18Thu
19Fri11:584.65:561.36:451.06:456:57Waning Gibbous19Fri
20Sat12:423.512:304.46:231.87:371.26:456:56Waning Gibbous20Sat
21Sun1:443.11:084.16:502.28:481.36:466:54Third Quarter21Sun
22Mon3:322.82:013.97:252.610:231.36:476:53Third Quarter22Mon
23Tue6:153.03:253.89:042.911:491.16:476:52Third Quarter23Tue
24Wed7:113.24:563.911:242.96:486:50Third Quarter24Wed
25Thu7:373.56:034.112:450.912:332.66:496:49Third Quarter25Thu
26Fri7:593.76:534.41:260.61:172.26:496:47Waning Crescent26Fri
27Sat8:194.07:354.71:590.41:531.86:506:46Waning Crescent27Sat
28Sun8:414.28:144.92:290.22:281.46:516:45Waning Crescent28Sun
29Mon9:044.58:535.12:580.13:031.06:516:43New Moon29Mon
30Tue9:304.89:345.03:270.13:410.66:526:42New 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 4:34 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 74% 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 Waning Gibbous (74% 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