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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : in 3h 09m at 11:54 pm (1.5 ft)
Next high tide : 5:38 am (6.7 ft)
Sunset today : 10:41 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:546.52:178.68:273.79:21-0.47:434:57Waning Gibbous1Tue
2Wed3:366.22:528.49:014.210:050.07:454:54Waning Gibbous2Wed
3Thu4:265.83:358.09:414.810:570.57:474:52Waning Gibbous3Thu
4Fri5:285.54:307.510:345.311:580.97:494:50Third Quarter4Fri
5Sat6:455.45:407.011:495.57:514:48Third Quarter5Sat
6Sun8:065.77:096.61:111.21:265.27:534:46Third Quarter6Sun
7Mon9:066.38:406.62:241.23:014.17:554:44Waning Crescent7Mon
8Tue9:527.19:556.83:271.04:112.47:574:42Waning Crescent8Tue
9Wed10:337.910:597.14:190.95:060.87:594:40Waning Crescent9Wed
10Thu11:128.611:557.35:061.05:56-0.78:024:38Waning Crescent10Thu
11Fri11:509.35:491.36:41-1.88:044:36New Moon11Fri
12Sat12:467.412:289.66:311.77:25-2.48:064:35New Moon12Sat
13Sun1:357.41:069.77:122.38:07-2.48:084:33New Moon13Sun
14Mon2:227.21:459.67:522.98:50-2.08:104:31Waxing Crescent14Mon
15Tue3:106.92:259.18:333.69:34-1.38:124:29Waxing Crescent15Tue
16Wed3:596.53:068.59:154.310:20-0.38:144:28Waxing Crescent16Wed
17Thu4:536.13:517.810:024.911:110.68:164:26Waxing Crescent17Thu
18Fri5:535.84:437.010:585.48:184:24First Quarter18Fri
19Sat7:035.75:466.312:071.412:125.78:204:23First Quarter19Sat
20Sun8:125.87:085.71:132.11:565.48:224:21First Quarter20Sun
21Mon9:046.18:355.52:202.43:224.58:244:20First Quarter21Mon
22Tue9:426.59:465.63:152.64:173.48:264:18Waxing Gibbous22Tue
23Wed10:137.010:435.83:582.74:592.38:284:17Waxing Gibbous23Wed
24Thu10:437.511:306.04:362.85:361.38:304:16Waxing Gibbous24Thu
25Fri11:127.95:113.06:100.48:314:15Waxing Gibbous25Fri
26Sat12:136.211:43 AM8.45:463.26:43-0.38:334:13Full Moon26Sat
27Sun12:526.412:148.76:213.47:17-0.98:354:12Full Moon27Sun
28Mon1:316.612:479.06:563.77:52-1.28:374:11Full Moon28Mon
29Tue2:106.61:229.17:323.98:30-1.38:394:10Full Moon29Tue
30Wed2:516.52:009.08:104.29:11-1.28:404:09Waning Gibbous30Wed
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 2:46 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 83% 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 Gibbous (83% 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