Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide : 10:08 am (2.5 ft)
Next high tide : in 2h 09m at 7:14 am (2.6 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - May 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:174.73:563.29:00-0.48:432.36:097:40First Quarter1Mon
2Tue2:304.35:173.510:15-0.210:312.26:087:41First Quarter2Tue
3Wed3:593.96:173.811:26-0.16:077:42First Quarter3Wed
4Thu5:263.87:014.112:021.812:250.16:067:42First Quarter4Thu
5Fri6:373.87:384.41:071.41:130.26:057:43Waxing Gibbous5Fri
6Sat7:353.88:094.61:570.91:530.46:047:44Waxing Gibbous6Sat
7Sun8:233.88:364.72:390.52:260.66:037:45Waxing Gibbous7Sun
8Mon9:053.79:014.83:160.22:550.86:027:45Waxing Gibbous8Mon
9Tue9:443.69:254.93:50-0.13:221.06:027:46Full Moon9Tue
10Wed10:223.59:494.94:22-0.23:481.36:017:47Full Moon10Wed
11Thu10:593.410:154.94:54-0.34:131.56:007:48Full Moon11Thu
12Fri11:393.210:414.85:28-0.34:391.75:597:48Full Moon12Fri
13Sat12:233.16:04-0.25:071.95:587:49Waning Gibbous13Sat
14Sun1:152.96:450.05:382.25:587:50Waning Gibbous14Sun
15Mon2:212.87:310.16:162.45:577:51Waning Gibbous15Mon
16Tue12:214.13:412.98:240.37:192.65:567:51Waning Gibbous16Tue
17Wed1:123.84:533.19:250.49:112.75:567:52Third Quarter17Wed
18Thu2:273.55:393.410:260.511:022.45:557:53Third Quarter18Thu
19Fri4:023.46:133.711:220.55:547:54Third Quarter19Fri
20Sat5:273.46:444.112:141.912:100.55:547:54Third Quarter20Sat
21Sun6:363.57:154.61:071.312:540.55:537:55Waning Crescent21Sun
22Mon7:363.77:485.11:530.61:350.65:537:56Waning Crescent22Mon
23Tue8:303.88:245.52:37-0.12:150.75:527:56Waning Crescent23Tue
24Wed9:233.99:025.83:22-0.72:560.85:527:57New Moon24Wed
25Thu10:153.89:436.04:08-1.13:381.05:517:58New Moon25Thu
26Fri11:093.810:266.04:55-1.34:231.35:517:58New Moon26Fri
27Sat12:053.75:45-1.45:111.55:517:59Waxing Crescent27Sat
28Sun1:063.66:37-1.26:051.85:508:00Waxing Crescent28Sun
29Mon12:025.42:143.57:33-0.97:112.15:508:00Waxing Crescent29Mon
30Tue12:594.83:253.68:33-0.58:342.25:498:01First Quarter30Tue
31Wed2:074.34:343.89:36-0.210:122.15:498:01First Quarter31Wed
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 8:41 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 transitional phase. Tonight's moon is 31% 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 Third Quarter (31% 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