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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 3:47 pm (3.3 ft)
Next high tide : in 1h 13m at 10:22 am (4.5 ft)
Sunset today : 11:18 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:589.14:518.010:41-2.510:520.36:4210:42Waning Gibbous1Thu
2Fri4:478.65:348.111:22-1.911:430.36:4410:40Waning Gibbous2Fri
3Sat5:377.96:178.012:04-0.96:4610:38Waning Gibbous3Sat
4Sun6:297.07:037.812:360.612:470.36:4810:36Third Quarter4Sun
5Mon7:256.17:527.51:341.11:321.56:5010:34Third Quarter5Mon
6Tue8:335.38:487.22:411.62:242.76:5210:32Third Quarter6Tue
7Wed10:024.99:537.04:031.83:273.66:5410:30Third Quarter7Wed
8Thu11:364.911:007.05:251.74:454.16:5610:27Waning Crescent8Thu
9Fri12:475.26:301.35:584.16:5710:25Waning Crescent9Fri
10Sat12:007.21:375.57:220.86:573.86:5910:23Waning Crescent10Sat
11Sun12:517.42:155.98:030.47:433.47:0110:21Waning Crescent11Sun
12Mon1:357.62:466.28:380.08:232.97:0310:18New Moon12Mon
13Tue2:137.83:156.59:08-0.38:582.47:0510:16New Moon13Tue
14Wed2:497.93:426.79:35-0.49:322.07:0710:14New Moon14Wed
15Thu3:237.94:086.910:02-0.410:051.77:0910:11New Moon15Thu
16Fri3:567.74:367.110:30-0.310:401.57:1110:09Waxing Crescent16Fri
17Sat4:307.45:047.210:590.111:161.47:1310:07Waxing Crescent17Sat
18Sun5:067.05:357.311:290.611:561.47:1510:04Waxing Crescent18Sun
19Mon5:456.56:097.312:021.27:1710:02Waxing Crescent19Mon
20Tue6:296.06:497.312:411.612:402.07:199:59First Quarter20Tue
21Wed7:245.57:387.21:341.81:242.87:219:57First Quarter21Wed
22Thu8:365.08:417.22:401.92:223.57:239:54First Quarter22Thu
23Fri10:104.99:557.43:591.73:373.97:259:52First Quarter23Fri
24Sat11:375.311:107.75:191.04:593.87:279:50Waxing Gibbous24Sat
25Sun12:425.96:270.26:133.17:299:47Waxing Gibbous25Sun
26Mon12:178.21:336.67:22-0.77:162.17:309:44Waxing Gibbous26Mon
27Tue1:168.72:187.38:10-1.48:111.17:329:42Full Moon27Tue
28Wed2:109.02:597.98:54-1.89:020.27:349:39Full Moon28Wed
29Thu3:009.03:398.39:35-1.89:49-0.47:369:37Full Moon29Thu
30Fri3:488.84:188.610:14-1.410:36-0.77:389:34Waning Gibbous30Fri
31Sat4:348.34:588.610:54-0.711:22-0.57:409:32Waning Gibbous31Sat
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 1:04 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 Chiachi Island (East Side), AK?

Chiachi Island (East Side), AK is currently in a transitional phase. Tonight's moon is 28% 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 Waning Crescent (28% 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