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 3h 16m 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 - Jun 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:283.85:324.010:390.211:421.85:498:02First Quarter1Thu
2Fri4:553.46:194.311:360.55:498:03First Quarter2Fri
3Sat6:143.36:584.512:511.312:270.85:488:03Waxing Gibbous3Sat
4Sun7:203.37:324.71:450.81:091.05:488:04Waxing Gibbous4Sun
5Mon8:153.38:014.92:280.41:461.25:488:04Waxing Gibbous5Mon
6Tue9:013.38:285.03:050.12:181.45:488:05Waxing Gibbous6Tue
7Wed9:413.38:555.13:38-0.12:471.65:488:05Full Moon7Wed
8Thu10:193.39:225.14:10-0.33:161.75:488:06Full Moon8Thu
9Fri10:553.29:505.14:42-0.43:461.85:488:06Full Moon9Fri
10Sat11:333.210:205.05:15-0.44:172.05:488:07Full Moon10Sat
11Sun12:143.25:49-0.44:502.15:488:07Waning Gibbous11Sun
12Mon12:583.26:26-0.35:272.35:488:07Waning Gibbous12Mon
13Tue1:483.27:05-0.16:122.45:488:08Waning Gibbous13Tue
14Wed12:034.42:413.27:480.17:122.55:488:08Waning Gibbous14Wed
15Thu12:494.13:363.48:340.38:372.55:488:08Third Quarter15Thu
16Fri1:513.74:263.79:250.510:152.35:488:09Third Quarter16Fri
17Sat3:143.35:114.010:180.711:401.85:488:09Third Quarter17Sat
18Sun4:493.15:534.511:120.95:488:09Third Quarter18Sun
19Mon6:153.16:334.912:451.112:041.05:488:10Waning Crescent19Mon
20Tue7:263.37:155.41:380.412:551.15:488:10Waning Crescent20Tue
21Wed8:263.47:575.82:27-0.31:431.25:498:10Waning Crescent21Wed
22Thu9:213.68:416.13:14-0.92:321.35:498:10New Moon22Thu
23Fri10:133.79:266.24:00-1.33:201.45:498:10New Moon23Fri
24Sat11:033.810:126.24:46-1.44:091.55:508:11New Moon24Sat
25Sun11:543.810:595.95:33-1.45:001.65:508:11Waxing Crescent25Sun
26Mon12:473.86:21-1.25:561.75:508:11Waxing Crescent26Mon
27Tue1:423.97:09-0.86:581.95:508:11Waxing Crescent27Tue
28Wed12:414.92:403.97:59-0.48:112.05:518:11Waxing Crescent28Wed
29Thu1:404.23:394.08:510.19:372.05:518:11First Quarter29Thu
30Fri2:513.64:374.29:450.611:081.75:528:11First 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 8:41 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