Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in San Nicolas Island, CA.
Next low tide : in 3h 12m at 5:12 am (-0.5 ft)
Next high tide : 11:26 am (3.7 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Aug 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:464.36:300.06:461.46:117:57Waning Gibbous1Sun
2Mon12:264.21:214.37:000.67:451.56:127:56Waning Gibbous2Mon
3Tue1:153.52:004.37:281.28:591.66:127:55Third Quarter3Tue
4Wed2:232.82:454.27:541.810:361.56:137:54Third Quarter4Wed
5Thu4:322.43:424.28:172.26:147:53Third Quarter5Thu
6Fri4:514.212:161.26:147:52Third Quarter6Fri
7Sat8:462.95:574.41:220.811:22 AM2.86:157:51Waning Crescent7Sat
8Sun9:033.16:504.72:060.412:442.76:167:51Waning Crescent8Sun
9Mon9:203.27:345.02:410.11:352.56:177:50Waning Crescent9Mon
10Tue9:383.48:115.23:10-0.12:142.36:177:49Waning Crescent10Tue
11Wed9:573.58:475.43:38-0.32:502.06:187:47New Moon11Wed
12Thu10:183.79:215.54:04-0.43:251.86:197:46New Moon12Thu
13Fri10:403.99:565.44:30-0.44:021.56:197:45New Moon13Fri
14Sat11:044.210:335.24:56-0.34:421.36:207:44New Moon14Sat
15Sun11:314.411:134.85:22-0.15:261.26:217:43Waxing Crescent15Sun
16Mon12:004.65:480.36:151.16:217:42Waxing Crescent16Mon
17Tue12:344.76:160.77:131.06:227:41Waxing Crescent17Tue
18Wed12:513.61:144.86:441.28:271.06:237:40Waxing Crescent18Wed
19Thu2:062.92:064.87:161.710:020.96:237:39First Quarter19Thu
20Fri4:132.63:164.97:582.211:400.56:247:38First Quarter20Fri
21Sat6:442.74:405.09:332.66:257:36First Quarter21Sat
22Sun7:473.15:585.212:530.011:37 AM2.66:267:35Waxing Gibbous22Sun
23Mon8:233.47:025.51:47-0.412:582.36:267:34Waxing Gibbous23Mon
24Tue8:543.87:555.72:32-0.71:561.96:277:33Waxing Gibbous24Tue
25Wed9:244.18:425.83:10-0.82:441.56:287:31Full Moon25Wed
26Thu9:534.39:255.73:45-0.73:291.26:287:30Full Moon26Thu
27Fri10:224.510:055.44:17-0.54:111.06:297:29Full Moon27Fri
28Sat10:504.710:444.94:46-0.24:520.86:307:28Full Moon28Sat
29Sun11:174.711:244.45:140.35:330.86:307:26Waning Gibbous29Sun
30Mon11:444.75:390.86:170.96:317:25Waning Gibbous30Mon
31Tue12:053.812:124.66:021.37:051.06:327:24Waning Gibbous31Tue
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 8:19 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 spring phase. Tonight's moon is 99% 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 Full Moon (99% 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