Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 8:38 am (2.1 ft)
Next high tide : in 20m at 4:51 am (2.4 ft)
Sunset today : 7:53 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jun 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:223.48:465.33:22-0.12:381.35:498:02New Moon1Sat
2Sun10:063.49:185.53:59-0.53:111.55:498:02New Moon2Sun
3Mon10:523.39:535.64:38-0.83:461.75:498:03New Moon3Mon
4Tue11:423.310:325.65:20-1.04:251.85:488:03New Moon4Tue
5Wed12:363.26:05-1.05:092.05:488:04Waxing Crescent5Wed
6Thu1:363.26:55-0.96:022.25:488:04Waxing Crescent6Thu
7Fri12:055.22:423.37:49-0.77:132.45:488:05Waxing Crescent7Fri
8Sat1:034.73:483.58:47-0.48:452.45:488:05First Quarter8Sat
9Sun2:144.34:463.99:47-0.210:262.15:488:06First Quarter9Sun
10Mon3:403.85:364.310:460.111:521.65:488:06First Quarter10Mon
11Tue5:093.56:204.711:410.45:488:07First Quarter11Tue
12Wed6:293.46:595.01:000.912:310.75:488:07Waxing Gibbous12Wed
13Thu7:393.47:375.31:550.31:161.05:488:08Waxing Gibbous13Thu
14Fri8:393.48:135.52:43-0.21:581.25:488:08Waxing Gibbous14Fri
15Sat9:323.48:485.63:27-0.62:381.55:488:08Full Moon15Sat
16Sun10:213.49:235.64:08-0.83:161.75:488:09Full Moon16Sun
17Mon11:063.49:575.54:48-0.93:531.95:488:09Full Moon17Mon
18Tue11:513.310:325.35:26-0.84:302.15:488:09Full Moon18Tue
19Wed12:363.36:05-0.65:072.25:488:10Waning Gibbous19Wed
20Thu1:243.26:45-0.45:492.45:488:10Waning Gibbous20Thu
21Fri2:153.27:26-0.16:382.55:498:10Waning Gibbous21Fri
22Sat12:234.33:093.38:090.27:442.65:498:10Waning Gibbous22Sat
23Sun1:093.84:033.48:540.59:132.65:498:10Third Quarter23Sun
24Mon2:083.44:493.69:400.810:532.45:498:11Third Quarter24Mon
25Tue3:303.05:283.910:281.05:508:11Third Quarter25Tue
26Wed5:052.86:024.212:111.911:15 AM1.35:508:11Third Quarter26Wed
27Thu6:282.86:344.51:061.411:59 AM1.55:508:11Waning Crescent27Thu
28Fri7:352.97:064.91:490.812:421.65:518:11Waning Crescent28Fri
29Sat8:293.17:415.22:280.21:241.75:518:11Waning Crescent29Sat
30Sun9:173.28:185.63:06-0.32:051.85:518:11Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410068)

Common Questions About San Nicolas Island, CA Tides

Show All
What time does the tide turn (slack tide) in San Nicolas Island, CA today?

Slack tide in San Nicolas Island, CA is approximately 6:44 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 neap phase. Tonight's moon is 42% 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 Third Quarter (42% 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