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 4h 58m 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 - Aug 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:062.86:164.51:001.111:46 AM2.26:117:57Waxing Gibbous1Tue
2Wed8:063.06:594.71:500.712:442.26:117:56Waxing Gibbous2Wed
3Thu8:473.27:384.92:290.41:312.26:127:55Waxing Gibbous3Thu
4Fri9:183.48:135.13:020.12:102.16:137:54Waxing Gibbous4Fri
5Sat9:463.58:465.23:32-0.12:452.06:147:53Full Moon5Sat
6Sun10:133.69:195.34:01-0.23:191.86:147:52Full Moon6Sun
7Mon10:403.89:525.34:30-0.33:541.76:157:51Full Moon7Mon
8Tue11:093.910:265.25:00-0.34:301.66:167:50Full Moon8Tue
9Wed11:394.011:025.05:29-0.25:091.66:167:49Waning Gibbous9Wed
10Thu12:124.16:000.05:531.66:177:48Waning Gibbous10Thu
11Fri12:494.26:330.36:451.66:187:47Waning Gibbous11Fri
12Sat12:274.21:314.37:080.77:501.66:187:46Waning Gibbous12Sat
13Sun1:253.62:214.47:491.19:131.56:197:45Third Quarter13Sun
14Mon2:473.13:224.58:401.510:481.26:207:44Third Quarter14Mon
15Tue4:412.94:304.79:491.96:217:43Third Quarter15Tue
16Wed6:253.05:385.112:110.711:12 AM2.16:217:42Waning Crescent16Wed
17Thu7:343.36:385.41:140.112:272.06:227:41Waning Crescent17Thu
18Fri8:233.77:325.72:06-0.41:291.86:237:40Waning Crescent18Fri
19Sat9:054.08:225.92:50-0.72:221.56:237:39Waning Crescent19Sat
20Sun9:434.29:086.03:31-0.83:101.36:247:37New Moon20Sun
21Mon10:194.49:525.84:10-0.83:561.16:257:36New Moon21Mon
22Tue10:554.510:355.54:47-0.64:401.06:257:35New Moon22Tue
23Wed11:314.511:175.15:23-0.35:251.06:267:34Waxing Crescent23Wed
24Thu12:074.55:570.16:121.16:277:33Waxing Crescent24Thu
25Fri12:004.512:444.46:310.67:041.36:277:31Waxing Crescent25Fri
26Sat12:483.91:244.37:051.28:041.46:287:30Waxing Crescent26Sat
27Sun1:453.42:104.17:401.79:231.56:297:29First Quarter27Sun
28Mon3:112.93:094.08:242.110:581.46:297:28First Quarter28Mon
29Tue5:242.84:234.09:362.56:307:26First Quarter29Tue
30Wed7:053.05:344.112:201.211:19 AM2.66:317:25First Quarter30Wed
31Thu7:523.26:294.41:150.812:322.56:317:24Waxing Gibbous31Thu
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