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

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 01m at 7:42 am (-1.1 ft)
Next high tide : 2:05 pm (5.9 ft)
Sunset today : 10:23 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:385.76:240.05:513.74:408:44Full Moon1Mon
2Tue1:066.16:55-0.56:323.14:428:42Full Moon2Tue
3Wed12:248.01:346.47:24-0.97:102.54:448:40Full Moon3Wed
4Thu1:018.12:016.77:52-1.17:472.04:468:38Full Moon4Thu
5Fri1:378.02:297.08:20-1.18:251.54:488:36Waning Gibbous5Fri
6Sat2:147.72:587.38:50-0.89:041.24:508:34Waning Gibbous6Sat
7Sun2:537.33:297.59:21-0.39:471.04:518:32Waning Gibbous7Sun
8Mon3:356.84:047.79:550.510:351.04:538:30Waning Gibbous8Mon
9Tue4:226.24:457.810:321.411:311.14:558:27Third Quarter9Tue
10Wed5:195.55:337.811:152.44:578:25Third Quarter10Wed
11Thu6:324.96:337.712:381.312:083.34:598:23Third Quarter11Thu
12Fri8:134.77:477.82:001.21:204.15:018:21Waning Crescent12Fri
13Sat9:515.09:048.03:260.62:474.25:038:19Waning Crescent13Sat
14Sun10:595.510:148.34:37-0.14:083.75:058:16Waning Crescent14Sun
15Mon11:496.211:158.65:33-0.95:162.95:078:14Waning Crescent15Mon
16Tue12:316.86:20-1.56:131.95:098:12New Moon16Tue
17Wed12:098.81:097.37:01-1.87:021.15:118:09New Moon17Wed
18Thu12:578.81:457.77:39-1.77:470.55:138:07New Moon18Thu
19Fri1:428.52:197.98:14-1.38:300.25:158:04Waxing Crescent19Fri
20Sat2:248.02:538.08:47-0.69:120.25:178:02Waxing Crescent20Sat
21Sun3:067.43:267.99:200.39:540.55:198:00Waxing Crescent21Sun
22Mon3:486.64:007.79:531.310:381.05:217:57Waxing Crescent22Mon
23Tue4:325.94:367.410:262.411:271.75:227:55First Quarter23Tue
24Wed5:225.25:177.011:033.45:247:52First Quarter24Wed
25Thu6:284.66:096.712:272.311:47 AM4.35:267:50First Quarter25Thu
26Fri8:144.47:196.51:512.612:515.05:287:47First Quarter26Fri
27Sat9:584.68:396.63:242.42:225.25:307:45Waxing Gibbous27Sat
28Sun10:535.09:466.84:281.93:484.95:327:42Waxing Gibbous28Sun
29Mon11:295.510:397.25:131.24:474.15:347:40Waxing Gibbous29Mon
30Tue11:586.011:247.55:490.65:333.35:367:37Waxing Gibbous30Tue
31Wed12:256.56:200.16:132.45:387:35Full Moon31Wed
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 10:53 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 spring phase. Tonight's moon is 5% 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 maximum.

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 (5% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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