Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 1h 32m at 8:38 am (2.1 ft)
Next high tide : 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 - Apr 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:054.29:053.82:241.52:54-0.16:457:18Waning Crescent1Mon
2Tue8:404.39:234.02:541.13:190.06:447:18Waning Crescent2Tue
3Wed9:124.39:434.23:230.83:420.16:427:19New Moon3Wed
4Thu9:444.310:054.43:530.64:050.26:417:20New Moon4Thu
5Fri10:184.110:274.54:240.34:280.46:407:21New Moon5Fri
6Sat10:533.910:524.64:580.24:520.76:387:21New Moon6Sat
7Sun11:333.511:194.65:350.15:161.06:377:22Waxing Crescent7Sun
8Mon12:193.26:180.15:411.46:367:23Waxing Crescent8Mon
9Tue1:202.87:090.26:091.86:357:24Waxing Crescent9Tue
10Wed12:304.42:542.58:140.26:462.26:337:24Waxing Crescent10Wed
11Thu1:234.35:102.69:360.28:052.56:327:25First Quarter11Thu
12Fri2:414.16:273.011:030.110:312.56:317:26First Quarter12Fri
13Sat4:194.17:063.412:11-0.26:307:26First Quarter13Sat
14Sun5:444.37:383.812:082.11:05-0.46:287:27Waxing Gibbous14Sun
15Mon6:514.58:094.21:111.51:49-0.56:277:28Waxing Gibbous15Mon
16Tue7:474.78:404.62:030.92:28-0.56:267:29Waxing Gibbous16Tue
17Wed8:394.79:125.02:500.33:05-0.46:257:29Waxing Gibbous17Wed
18Thu9:284.69:445.23:35-0.23:41-0.16:247:30Full Moon18Thu
19Fri10:164.410:175.34:19-0.64:150.36:227:31Full Moon19Fri
20Sat11:044.010:515.35:04-0.74:490.76:217:32Full Moon20Sat
21Sun11:563.611:255.15:50-0.75:221.26:207:32Waning Gibbous21Sun
22Mon12:533.26:39-0.55:561.76:197:33Waning Gibbous22Mon
23Tue12:014.72:062.97:34-0.26:332.16:187:34Waning Gibbous23Tue
24Wed12:424.33:492.88:380.17:232.56:177:35Waning Gibbous24Wed
25Thu1:343.95:452.99:540.39:202.76:167:35Third Quarter25Thu
26Fri2:533.56:433.211:110.411:362.66:147:36Third Quarter26Fri
27Sat4:343.47:143.412:130.46:137:37Third Quarter27Sat
28Sun5:533.47:373.612:462.212:580.46:127:38Third Quarter28Sun
29Mon6:513.67:583.91:291.81:340.46:117:38Waning Crescent29Mon
30Tue7:363.78:174.12:041.42:030.46:107:39Waning Crescent30Tue
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 12:18 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