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

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Avalon, Santa Catalina Island, CA.
Next low tide (tomorrow) : 12:29 am (1.1 ft)
Next high tide : in 15h 03m at 3:55 pm (4.8 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:19 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9410079
Common Questions About Tides

Avalon, Santa Catalina Island, CA Tides - Sep 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:184.911:340.75:276:19Third Quarter1Sat
2Sun7:023.54:365.010:233.25:276:18Third Quarter2Sun
3Mon7:183.85:355.312:210.411:35 AM2.95:286:16Waning Crescent3Mon
4Tue7:354.06:205.512:570.212:192.65:296:15Waning Crescent4Tue
5Wed7:534.26:585.71:270.012:562.25:296:14Waning Crescent5Wed
6Thu8:124.57:325.71:530.01:291.95:306:12Waning Crescent6Thu
7Fri8:314.78:045.72:160.02:011.65:316:11New Moon7Fri
8Sat8:514.98:355.52:370.22:321.35:316:10New Moon8Sat
9Sun9:115.19:065.12:570.43:051.15:326:08New Moon9Sun
10Mon9:315.29:394.73:170.73:391.05:336:07New Moon10Mon
11Tue9:525.310:154.33:361.14:160.95:336:06Waxing Crescent11Tue
12Wed10:165.410:593.73:561.54:590.95:346:04Waxing Crescent12Wed
13Thu10:465.44:141.95:531.05:356:03Waxing Crescent13Thu
14Fri12:003.211:26 AM5.44:312.27:091.05:356:02First Quarter14Fri
15Sat1:542.812:245.24:432.68:560.95:366:00First Quarter15Sat
16Sun1:515.210:280.55:375:59First Quarter16Sun
17Mon6:123.43:325.38:503.311:270.05:375:57First Quarter17Mon
18Tue6:263.94:535.610:442.95:385:56Waxing Gibbous18Tue
19Wed6:504.35:565.912:13-0.311:52 AM2.25:395:55Waxing Gibbous19Wed
20Thu7:184.86:506.112:52-0.512:451.55:395:53Waxing Gibbous20Thu
21Fri7:475.37:396.01:28-0.51:340.95:405:52Full Moon21Fri
22Sat8:175.78:265.72:02-0.22:210.45:415:51Full Moon22Sat
23Sun8:486.09:135.32:340.23:060.15:415:49Full Moon23Sun
24Mon9:196.110:004.73:040.73:520.05:425:48Full Moon24Mon
25Tue9:506.110:514.03:321.24:390.15:435:46Waning Gibbous25Tue
26Wed10:235.911:523.53:581.85:300.35:435:45Waning Gibbous26Wed
27Thu10:585.54:212.36:330.75:445:44Waning Gibbous27Thu
28Fri1:213.011:40 AM5.14:342.78:010.95:455:42Third Quarter28Fri
29Sat12:424.79:390.95:455:41Third Quarter29Sat
30Sun2:214.510:480.85:465:40Third Quarter30Sun
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 8:12 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 Avalon, Santa Catalina Island, CA?

Avalon, Santa Catalina Island, CA is currently in a neap phase. Tonight's moon is 56% 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 (56% 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