Tides Today & Tomorrow in Chiachi Island (East Side), AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 19m at 12:58 am (2.7 ft)
Next high tide : 6:42 am (7.1 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:019.33:316.69:15-2.58:562.56:4110:43Full Moon1Tue
2Wed2:539.54:117.09:58-2.99:471.76:4310:41Full Moon2Wed
3Thu3:439.34:517.410:39-2.810:381.16:4510:39Waning Gibbous3Thu
4Fri4:328.95:307.611:18-2.311:300.76:4710:37Waning Gibbous4Fri
5Sat5:228.16:107.811:58-1.46:4910:35Waning Gibbous5Sat
6Sun6:147.26:527.812:240.712:37-0.26:5110:33Third Quarter6Sun
7Mon7:106.27:367.71:210.81:181.26:5310:31Third Quarter7Mon
8Tue8:175.38:267.52:261.12:032.66:5510:29Third Quarter8Tue
9Wed9:464.79:257.33:441.42:573.86:5710:26Third Quarter9Wed
10Thu11:354.610:337.25:101.34:104.76:5810:24Waning Crescent10Thu
11Fri12:595.06:241.05:355.07:0010:22Waning Crescent11Fri
12Sat1:545.47:220.66:464.87:0210:20Waning Crescent12Sat
13Sun12:397.52:335.78:090.17:404.47:0410:17Waning Crescent13Sun
14Mon1:297.73:046.08:47-0.28:223.87:0610:15New Moon14Mon
15Tue2:107.93:316.29:18-0.58:593.37:0810:13New Moon15Tue
16Wed2:478.03:566.49:46-0.79:322.77:1010:10New Moon16Wed
17Thu3:218.04:206.610:12-0.710:052.37:1210:08New Moon17Thu
18Fri3:547.84:446.810:37-0.510:391.97:1410:06Waxing Crescent18Fri
19Sat4:277.45:086.911:02-0.111:141.77:1610:03Waxing Crescent19Sat
20Sun5:027.05:347.011:280.511:521.67:1810:01Waxing Crescent20Sun
21Mon5:386.46:027.111:561.37:209:58Waxing Crescent21Mon
22Tue6:195.86:357.212:331.712:262.27:229:56First Quarter22Tue
23Wed7:095.27:157.21:221.81:003.17:249:53First Quarter23Wed
24Thu8:164.78:087.22:232.01:434.17:269:51First Quarter24Thu
25Fri10:004.49:187.33:411.92:504.97:289:48First Quarter25Fri
26Sat11:514.710:397.65:111.44:215.17:309:46Waxing Gibbous26Sat
27Sun12:595.36:260.55:484.77:319:43Waxing Gibbous27Sun
28Mon1:465.97:23-0.66:583.77:339:41Waxing Gibbous28Mon
29Tue12:588.62:256.68:11-1.57:572.57:359:38Full Moon29Tue
30Wed1:549.03:027.28:53-2.08:491.37:379:36Full Moon30Wed
31Thu2:459.23:387.89:32-2.29:380.27:399:33Full Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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What time does the tide turn (slack tide) in Chiachi Island (East Side), AK today?

Slack tide in Chiachi Island (East Side), AK is approximately 3:50 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a transitional phase. Tonight's moon is 29% 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 Chiachi Island (East Side), AK 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 Chiachi Island (East Side), AK?

Tide predictions for Chiachi Island (East Side), AK 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 Chiachi Island (East Side), AK?

Tide data for Chiachi Island (East Side), AK is sourced from NOAA Station #9459085. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9459085.

What is the moon phase in Chiachi Island (East Side), AK tonight?

Tonight the moon over Chiachi Island (East Side), AK is Waxing Crescent (29% illuminated). This places Chiachi Island (East Side), AK 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