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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 22m at 12:08 pm (-0.7 ft)
Next high tide : 6:29 pm (6.2 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:017.92:406.88:42-0.68:361.16:5010:16Full Moon1Thu
2Fri2:348.13:216.89:18-1.09:101.46:4810:18Full Moon2Fri
3Sat3:068.23:596.79:53-1.29:431.86:4610:20Full Moon3Sat
4Sun3:378.24:356.510:26-1.210:162.36:4310:22Waning Gibbous4Sun
5Mon4:088.05:126.311:00-0.910:492.76:4110:24Waning Gibbous5Mon
6Tue4:407.75:506.011:35-0.511:253.26:3910:26Waning Gibbous6Tue
7Wed5:147.46:325.712:130.06:3710:28Waning Gibbous7Wed
8Thu5:526.97:185.412:043.712:550.56:3510:30Waning Gibbous8Thu
9Fri6:366.48:135.212:504.11:421.16:3310:32Third Quarter9Fri
10Sat7:305.99:175.31:474.42:371.56:3110:34Third Quarter10Sat
11Sun8:385.510:195.63:004.43:391.76:2910:35Third Quarter11Sun
12Mon9:595.411:116.04:233.94:411.86:2710:37Third Quarter12Mon
13Tue11:155.511:566.75:342.95:371.66:2510:39Waning Crescent13Tue
14Wed12:195.86:301.76:261.56:2410:41Waning Crescent14Wed
15Thu12:377.31:166.27:190.47:131.46:2210:43Waning Crescent15Thu
16Fri1:178.02:076.68:04-0.97:581.36:2010:45New Moon16Fri
17Sat1:588.62:566.98:49-1.98:421.36:1810:47New Moon17Sat
18Sun2:409.13:437.09:33-2.69:271.46:1710:48New Moon18Sun
19Mon3:239.34:327.010:18-3.010:121.66:1510:50Waxing Crescent19Mon
20Tue4:079.35:226.911:04-2.911:001.96:1310:52Waxing Crescent20Tue
21Wed4:559.06:146.711:53-2.511:522.46:1210:54Waxing Crescent21Wed
22Thu5:468.47:106.512:44-1.86:1010:55Waxing Crescent22Thu
23Fri6:427.68:116.412:512.81:40-0.96:0910:57First Quarter23Fri
24Sat7:466.89:176.42:003.12:400.06:0710:59First Quarter24Sat
25Sun9:026.110:216.63:243.03:460.76:0611:00First Quarter25Sun
26Mon10:275.711:186.94:522.54:511.26:0511:02Waxing Gibbous26Mon
27Tue11:445.66:021.65:491.66:0311:03Waxing Gibbous27Tue
28Wed12:077.312:505.76:590.76:401.96:0211:05Waxing Gibbous28Wed
29Thu12:507.61:445.97:460.07:252.16:0111:06Waxing Gibbous29Thu
30Fri1:287.82:306.08:27-0.68:052.46:0011:08Full Moon30Fri
31Sat2:038.03:116.29:03-1.08:422.55:5911:09Full Moon31Sat
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 3:18 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 79% 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 Gibbous (79% 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