Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 29m at 7:09 pm (1.1 ft)
Next high tide (tomorrow) : 12:49 am (3.8 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Jan 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:403.412:523.37:572.58:200.87:015:01First Quarter1Mon
2Tue3:263.62:222.99:432.29:081.17:015:02First Quarter2Tue
3Wed4:074.04:112.711:051.710:001.47:025:03First Quarter3Wed
4Thu4:464.35:412.812:031.07:025:04Waxing Gibbous4Thu
5Fri5:244.86:492.912:490.37:025:05Waxing Gibbous5Fri
6Sat6:045.27:443.11:33-0.47:025:05Waxing Gibbous6Sat
7Sun6:465.78:323.312:321.72:15-1.07:025:06Waxing Gibbous7Sun
8Mon7:296.09:183.51:201.72:58-1.47:025:07Full Moon8Mon
9Tue8:146.210:023.62:081.63:42-1.67:025:08Full Moon9Tue
10Wed9:016.310:483.72:561.64:26-1.67:025:09Full Moon10Wed
11Thu9:486.011:353.83:471.65:11-1.47:025:10Waning Gibbous11Thu
12Fri10:385.64:421.65:57-1.17:015:11Waning Gibbous12Fri
13Sat12:263.911:31 AM5.05:441.76:44-0.67:015:11Waning Gibbous13Sat
14Sun1:194.012:324.26:581.77:340.07:015:12Third Quarter14Sun
15Mon2:164.11:463.58:261.68:260.67:015:13Third Quarter15Mon
16Tue3:154.33:232.910:031.39:241.17:015:14Third Quarter16Tue
17Wed4:124.55:102.711:280.910:251.57:005:15Third Quarter17Wed
18Thu5:044.66:382.812:330.47:005:16Waning Crescent18Thu
19Fri5:504.87:403.01:22-0.17:005:17Waning Crescent19Fri
20Sat6:314.98:253.112:191.92:02-0.46:595:18Waning Crescent20Sat
21Sun7:085.09:003.21:032.02:37-0.56:595:19Waning Crescent21Sun
22Mon7:425.19:293.31:412.03:09-0.66:595:20New Moon22Mon
23Tue8:145.29:573.32:141.93:38-0.76:585:21New Moon23Tue
24Wed8:465.110:243.32:461.84:07-0.66:585:22New Moon24Wed
25Thu9:165.010:523.43:191.84:36-0.56:575:23New Moon25Thu
26Fri9:474.911:223.43:521.85:04-0.36:575:24Waxing Crescent26Fri
27Sat10:194.611:543.44:281.85:33-0.16:565:25Waxing Crescent27Sat
28Sun10:534.25:091.86:020.26:555:26Waxing Crescent28Sun
29Mon12:283.511:31 AM3.75:591.96:320.66:555:27Waxing Crescent29Mon
30Tue1:063.612:203.27:041.97:051.06:545:28First Quarter30Tue
31Wed1:513.71:392.78:341.77:451.46:535:29First Quarter31Wed
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 9:59 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 19% 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 Waxing Crescent (19% 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