Tides Today & Tomorrow in Avalon, Santa Catalina Island, CA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Avalon, Santa Catalina Island, CA.
Next low tide : in 1h 40m at 7:00 am (2.5 ft)
Next high tide : 2:44 pm (4.8 ft)
Sunset today : 7:34 pm
Sunrise tomorrow : 6:18 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9410079
Common Questions About Tides

Avalon, Santa Catalina Island, CA Tides - Sep 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:535.38:476.02:37-0.32:400.85:276:18Full Moon1Tue
2Wed9:245.69:325.63:08-0.13:260.55:286:17Full Moon2Wed
3Thu9:575.910:215.03:400.34:160.45:286:16Waning Gibbous3Thu
4Fri10:345.911:174.24:120.95:110.45:296:14Waning Gibbous4Fri
5Sat11:175.94:451.46:160.65:306:13Waning Gibbous5Sat
6Sun12:293.612:085.75:202.07:410.75:306:12Third Quarter6Sun
7Mon2:133.11:165.56:052.59:240.65:316:10Third Quarter7Mon
8Tue4:333.22:425.37:313.010:470.35:326:09Third Quarter8Tue
9Wed5:553.64:095.49:503.011:460.15:326:08Third Quarter9Wed
10Thu6:354.05:195.511:182.75:336:06Waning Crescent10Thu
11Fri7:064.36:145.712:32-0.112:152.25:346:05Waning Crescent11Fri
12Sat7:334.67:005.71:10-0.11:001.85:346:04Waning Crescent12Sat
13Sun7:594.97:395.61:420.01:391.45:356:02New Moon13Sun
14Mon8:235.18:155.42:090.12:151.15:366:01New Moon14Mon
15Tue8:465.28:495.12:340.42:481.05:366:00New Moon15Tue
16Wed9:095.39:224.82:550.73:200.95:375:58New Moon16Wed
17Thu9:305.39:564.43:161.13:520.85:385:57Waxing Crescent17Thu
18Fri9:515.310:313.93:351.54:270.95:385:55Waxing Crescent18Fri
19Sat10:145.211:133.53:531.85:051.15:395:54Waxing Crescent19Sat
20Sun10:405.04:092.25:531.25:405:53Waxing Crescent20Sun
21Mon12:123.111:13 AM4.94:192.57:011.45:405:51Waxing Crescent21Mon
22Tue2:122.812:034.74:122.88:441.45:415:50First Quarter22Tue
23Wed1:254.510:121.15:425:49First Quarter23Wed
24Thu6:133.43:084.68:403.311:040.75:425:47First Quarter24Thu
25Fri6:083.84:284.910:333.011:430.45:435:46Waxing Gibbous25Fri
26Sat6:244.25:285.211:312.45:445:44Waxing Gibbous26Sat
27Sun6:474.76:205.512:180.112:181.75:445:43Waxing Gibbous27Sun
28Mon7:125.27:075.612:510.01:031.05:455:42Waxing Gibbous28Mon
29Tue7:415.77:545.61:230.11:470.35:465:40Full Moon29Tue
30Wed8:116.18:415.31:560.32:32-0.25:465:39Full Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410079)

Common Questions About Avalon, Santa Catalina Island, CA Tides

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What time does the tide turn (slack tide) in Avalon, Santa Catalina Island, CA today?

Slack tide in Avalon, Santa Catalina Island, CA is approximately 10:52 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 Avalon, Santa Catalina Island, CA?

Avalon, Santa Catalina Island, CA is currently in a neap phase. Tonight's moon is 47% 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 Avalon, Santa Catalina 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 Avalon, Santa Catalina Island, CA?

Tide predictions for Avalon, Santa Catalina 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 Avalon, Santa Catalina Island, CA?

Tide data for Avalon, Santa Catalina Island, CA is sourced from NOAA Station #9410079. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410079.

What is the moon phase in Avalon, Santa Catalina Island, CA tonight?

Tonight the moon over Avalon, Santa Catalina Island, CA is First Quarter (47% illuminated). This places Avalon, Santa Catalina 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