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 31m 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 - Oct 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:293.73:564.510:333.311:340.65:475:38Third Quarter1Mon
2Tue6:374.05:034.711:302.95:475:37Waning Crescent2Tue
3Wed6:494.35:524.912:090.512:092.45:485:36Waning Crescent3Wed
4Thu7:054.66:335.012:370.412:431.95:495:34Waning Crescent4Thu
5Fri7:234.97:115.01:020.41:151.45:505:33Waning Crescent5Fri
6Sat7:425.27:465.01:240.51:470.95:505:32New Moon6Sat
7Sun8:025.58:224.81:460.72:180.65:515:30New Moon7Sun
8Mon8:225.78:584.52:081.02:520.35:525:29New Moon8Mon
9Tue8:445.99:374.22:301.33:270.15:535:28New Moon9Tue
10Wed9:085.910:213.82:521.64:060.05:535:27Waxing Crescent10Wed
11Thu9:376.011:173.43:142.04:510.05:545:25Waxing Crescent11Thu
12Fri10:115.83:362.35:470.25:555:24Waxing Crescent12Fri
13Sat12:383.010:55 AM5.63:572.66:590.35:565:23Waxing Crescent13Sat
14Sun11:585.38:290.35:565:22First Quarter14Sun
15Mon1:315.09:490.25:575:20First Quarter15Mon
16Tue5:183.83:174.99:313.210:480.15:585:19First Quarter16Tue
17Wed5:444.44:414.911:012.511:330.05:595:18Waxing Gibbous17Wed
18Thu6:114.95:485.011:591.65:595:17Waxing Gibbous18Thu
19Fri6:415.56:455.112:130.112:490.86:005:16Waxing Gibbous19Fri
20Sat7:106.07:364.912:480.31:340.16:015:14Waxing Gibbous20Sat
21Sun7:416.38:244.71:210.62:18-0.46:025:13Full Moon21Sun
22Mon8:116.59:124.31:531.03:01-0.66:035:12Full Moon22Mon
23Tue8:416.510:014.02:221.53:43-0.66:035:11Full Moon23Tue
24Wed9:126.310:543.62:501.94:26-0.56:045:10Waning Gibbous24Wed
25Thu9:426.011:573.23:162.35:12-0.26:055:09Waning Gibbous25Thu
26Fri10:145.63:392.66:050.26:065:08Waning Gibbous26Fri
27Sat1:283.110:51 AM5.13:523.07:100.56:075:07Waning Gibbous27Sat
28Sun11:394.78:280.76:085:06Third Quarter28Sun
29Mon1:004.29:370.86:095:05Third Quarter29Mon
30Tue5:313.82:464.010:063.310:270.86:095:04Third Quarter30Tue
31Wed5:404.14:104.011:092.811:040.86:105:03Third Quarter31Wed
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