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

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 1:36 am (1.4 ft)
Next high tide : in 2h 15m at 6:52 pm (7.5 ft)
Sunset today : 10:36 pm
Sunrise tomorrow : 6:48 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:246.52:518.19:023.69:520.17:434:57Waxing Crescent1Thu
2Fri4:086.23:307.89:414.210:380.57:454:54Waxing Crescent2Fri
3Sat5:005.94:177.410:284.711:321.07:474:52First Quarter3Sat
4Sun6:035.75:187.011:305.07:494:50First Quarter4Sun
5Mon7:195.86:366.612:361.312:525.07:514:48First Quarter5Mon
6Tue8:306.28:056.51:481.42:234.37:534:46First Quarter6Tue
7Wed9:266.99:266.72:571.33:403.07:554:44Waxing Gibbous7Wed
8Thu10:137.610:337.13:561.14:411.47:574:42Waxing Gibbous8Thu
9Fri10:568.411:317.54:480.95:33-0.17:594:40Waxing Gibbous9Fri
10Sat11:389.15:350.96:21-1.38:024:38Full Moon10Sat
11Sun12:257.712:199.66:201.07:07-2.28:044:36Full Moon11Sun
12Mon1:157.81:009.87:041.47:52-2.58:064:35Full Moon12Mon
13Tue2:037.71:419.87:461.98:36-2.48:084:33Waning Gibbous13Tue
14Wed2:527.52:239.48:302.59:21-1.88:104:31Waning Gibbous14Wed
15Thu3:427.13:068.89:143.210:08-1.08:124:29Waning Gibbous15Thu
16Fri4:346.73:528.110:034.010:570.08:144:28Waning Gibbous16Fri
17Sat5:316.34:447.310:584.611:521.08:164:26Third Quarter17Sat
18Sun6:376.15:456.512:085.08:184:24Third Quarter18Sun
19Mon7:486.17:025.912:551.81:435.08:204:23Third Quarter19Mon
20Tue8:506.38:295.72:052.33:124.38:224:21Third Quarter20Tue
21Wed9:376.69:425.73:072.54:123.48:244:20Waning Crescent21Wed
22Thu10:147.010:395.93:572.64:582.48:264:18Waning Crescent22Thu
23Fri10:477.411:276.24:382.75:361.58:284:17Waning Crescent23Fri
24Sat11:177.85:152.86:100.78:304:16Waning Crescent24Sat
25Sun12:086.411:47 AM8.25:502.96:420.08:314:15New Moon25Sun
26Mon12:466.612:188.56:233.07:14-0.58:334:13New Moon26Mon
27Tue1:236.712:498.76:573.17:47-0.88:354:12New Moon27Tue
28Wed1:596.81:228.87:323.38:21-1.08:374:11New Moon28Wed
29Thu2:376.71:568.78:083.68:58-0.98:394:10Waxing Crescent29Thu
30Fri3:176.62:338.58:463.89:38-0.78:404:09Waxing Crescent30Fri
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 10:14 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 64% 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 Third Quarter (64% 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