Tides Today & Tomorrow in San Nicolas Island, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in San Nicolas Island, CA.
Next low tide (tomorrow) : 1:14 am (0.7 ft)
Next high tide : in 6h 58m at 5:07 pm (4.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9410068
Common Questions About Tides

San Nicolas Island, CA Tides - Apr 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:124.510:324.84:190.14:300.06:447:18Full Moon1Mon
2Tue10:564.311:034.95:01-0.15:000.36:437:19Full Moon2Tue
3Wed11:443.811:384.95:47-0.35:320.86:427:19Waning Gibbous3Wed
4Thu12:413.46:39-0.36:061.26:407:20Waning Gibbous4Thu
5Fri12:184.91:552.97:41-0.26:471.76:397:21Waning Gibbous5Fri
6Sat1:084.73:412.78:58-0.17:472.26:387:22Third Quarter6Sat
7Sun2:164.45:382.910:26-0.19:392.46:377:22Third Quarter7Sun
8Mon3:474.26:473.211:47-0.211:382.36:357:23Third Quarter8Mon
9Tue5:194.27:303.612:50-0.46:347:24Third Quarter9Tue
10Wed6:334.48:044.012:551.81:39-0.56:337:25Waning Crescent10Wed
11Thu7:314.58:354.31:491.32:20-0.56:327:25Waning Crescent11Thu
12Fri8:214.69:044.52:350.82:55-0.46:307:26Waning Crescent12Fri
13Sat9:054.59:304.73:150.43:27-0.16:297:27New Moon13Sat
14Sun9:454.39:564.83:530.13:560.26:287:28New Moon14Sun
15Mon10:254.010:214.84:29-0.14:220.66:277:28New Moon15Mon
16Tue11:043.710:464.85:05-0.24:480.96:257:29New Moon16Tue
17Wed11:453.411:124.65:42-0.15:121.36:247:30Waxing Crescent17Wed
18Thu12:313.06:210.05:341.76:237:30Waxing Crescent18Thu
19Fri1:302.77:050.25:552.16:227:31Waxing Crescent19Fri
20Sat12:094.23:042.57:590.46:122.46:217:32Waxing Crescent20Sat
21Sun12:463.99:100.66:207:33First Quarter21Sun
22Mon1:433.67:012.910:340.610:062.86:187:33First Quarter22Mon
23Tue3:213.47:133.211:450.56:177:34First Quarter23Tue
24Wed4:593.47:293.412:002.512:350.46:167:35First Quarter24Wed
25Thu6:093.67:463.712:542.11:130.26:157:36Waxing Gibbous25Thu
26Fri7:023.98:064.11:341.61:460.16:147:36Waxing Gibbous26Fri
27Sat7:494.18:294.42:111.02:170.16:137:37Waxing Gibbous27Sat
28Sun8:344.28:544.82:480.52:480.26:127:38Waxing Gibbous28Sun
29Mon9:194.29:235.23:27-0.13:190.46:117:39Full Moon29Mon
30Tue10:064.19:555.44:08-0.53:520.66:107:39Full Moon30Tue
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 9:10 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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