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 (tomorrow) : 12:19 am (0.5 ft)
Next high tide : in 4h 10m at 3:59 pm (4.8 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 - Nov 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:103.94:584.311:332.47:166:06Third Quarter1Thu
2Fri6:504.36:134.412:110.112:421.87:176:05Waning Crescent2Fri
3Sat7:254.77:144.51:000.11:351.17:186:04Waning Crescent3Sat
4Sun6:585.17:074.51:420.21:220.66:195:03Waning Crescent4Sun
5Mon7:295.47:564.41:190.42:050.16:205:02Waning Crescent5Mon
6Tue8:005.68:424.31:540.62:46-0.26:215:02New Moon6Tue
7Wed8:305.69:284.12:271.03:26-0.46:225:01New Moon7Wed
8Thu9:015.610:143.82:581.34:06-0.46:225:00New Moon8Thu
9Fri9:315.411:033.53:291.74:48-0.36:234:59Waxing Crescent9Fri
10Sat10:025.14:002.05:31-0.16:244:59Waxing Crescent10Sat
11Sun12:003.310:34 AM4.84:312.46:200.26:254:58Waxing Crescent11Sun
12Mon1:113.111:11 AM4.45:072.77:170.56:264:57Waxing Crescent12Mon
13Tue2:483.111:58 AM4.06:043.08:230.76:274:57First Quarter13Tue
14Wed4:183.31:143.68:143.19:310.86:284:56First Quarter14Wed
15Thu5:033.62:563.410:222.810:280.86:294:55First Quarter15Thu
16Fri5:323.84:223.411:272.411:140.86:304:55First Quarter16Fri
17Sat5:554.15:243.512:101.96:314:54Waxing Gibbous17Sat
18Sun6:174.46:153.712:451.46:324:54Waxing Gibbous18Sun
19Mon6:404.77:003.812:230.91:180.96:324:53Waxing Gibbous19Mon
20Tue7:045.17:433.812:541.01:520.46:334:53Waxing Gibbous20Tue
21Wed7:315.48:263.81:241.12:28-0.16:344:53Full Moon21Wed
22Thu8:015.69:113.81:561.23:06-0.56:354:52Full Moon22Thu
23Fri8:345.89:593.72:291.43:47-0.76:364:52Full Moon23Fri
24Sat9:105.910:523.63:051.64:32-0.86:374:51Full Moon24Sat
25Sun9:515.711:523.43:451.95:22-0.76:384:51Waning Gibbous25Sun
26Mon10:375.54:322.26:17-0.66:394:51Waning Gibbous26Mon
27Tue1:023.411:32 AM5.15:332.47:19-0.36:404:51Waning Gibbous27Tue
28Wed2:193.512:414.66:582.68:25-0.16:414:50Third Quarter28Wed
29Thu3:303.82:064.18:462.59:310.16:414:50Third Quarter29Thu
30Fri4:274.23:383.910:232.010:310.36:424:50Third Quarter30Fri
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 8:09 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 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