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

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 6:51 am (1.7 ft)
Next high tide : in 4h 59m at 10:51 pm (6.7 ft)
Sunset today : 9:55 pm
Sunrise tomorrow : 7:22 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:195.110:417.45:180.84:363.43:589:09Waxing Gibbous1Mon
2Tue12:065.45:570.15:193.53:579:11Waxing Gibbous2Tue
3Wed12:475.66:33-0.56:003.53:569:12Full Moon3Wed
4Thu1:255.87:08-1.06:393.53:559:13Full Moon4Thu
5Fri12:338.22:015.97:43-1.37:183.43:549:14Full Moon5Fri
6Sat1:108.42:386.08:18-1.67:573.33:549:15Full Moon6Sat
7Sun1:488.33:166.18:55-1.78:393.33:539:16Waning Gibbous7Sun
8Mon2:278.13:556.19:33-1.69:243.23:529:17Waning Gibbous8Mon
9Tue3:107.84:376.210:13-1.310:153.13:529:18Waning Gibbous9Tue
10Wed3:587.25:206.310:55-0.811:132.93:519:19Third Quarter10Wed
11Thu4:536.56:086.611:41-0.13:519:20Third Quarter11Thu
12Fri5:585.87:006.912:212.612:310.73:509:21Third Quarter12Fri
13Sat7:175.37:567.41:372.01:271.53:509:22Third Quarter13Sat
14Sun8:455.08:527.92:561.02:292.23:509:22Waning Crescent14Sun
15Mon10:085.29:478.44:060.03:322.73:509:23Waning Crescent15Mon
16Tue11:195.510:428.85:07-1.04:333.03:509:23Waning Crescent16Tue
17Wed12:195.96:01-1.85:323.03:509:24New Moon17Wed
18Thu1:096.26:51-2.46:262.93:509:24New Moon18Thu
19Fri12:249.21:556.57:36-2.67:172.73:509:25New Moon19Fri
20Sat1:119.12:396.68:19-2.58:042.63:509:25New Moon20Sat
21Sun1:568.83:206.68:59-2.28:512.63:509:25Waxing Crescent21Sun
22Mon2:408.24:006.69:38-1.79:382.73:509:25Waxing Crescent22Mon
23Tue3:247.64:396.510:15-0.910:262.83:519:25Waxing Crescent23Tue
24Wed4:086.85:176.410:52-0.111:182.93:519:26First Quarter24Wed
25Thu4:546.05:566.411:280.93:519:25First Quarter25Thu
26Fri5:475.26:396.412:173.012:071.83:529:25First Quarter26Fri
27Sat6:534.67:266.51:262.912:522.73:539:25First Quarter27Sat
28Sun8:174.38:176.72:432.51:443.53:539:25Waxing Gibbous28Sun
29Mon9:454.39:087.03:511.92:444.03:549:25Waxing Gibbous29Mon
30Tue10:574.69:587.34:461.23:444.23:559:24Waxing Gibbous30Tue
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 2:51 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 75% 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 Gibbous (75% 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