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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 3:57 pm (2.6 ft)
Next high tide : in 1h 52m at 10:15 am (4.7 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Feb 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:007.72:379.68:431.69:28-2.79:296:10Full Moon1Thu
2Fri3:417.93:249.29:311.310:08-2.29:276:12Waning Gibbous2Fri
3Sat4:218.04:108.510:191.210:47-1.39:256:14Waning Gibbous3Sat
4Sun5:017.94:577.611:081.411:25-0.29:236:17Waning Gibbous4Sun
5Mon5:417.75:456.611:591.79:216:19Third Quarter5Mon
6Tue6:237.46:405.712:041.012:562.29:196:21Third Quarter6Tue
7Wed7:097.17:505.012:452.32:062.59:176:23Third Quarter7Wed
8Thu8:036.99:314.61:343.43:332.59:156:25Third Quarter8Thu
9Fri9:076.811:114.82:374.44:542.29:136:28Waning Crescent9Fri
10Sat10:146.93:574.85:541.69:116:30Waning Crescent10Sat
11Sun12:175.211:12 AM7.25:124.86:411.09:086:32Waning Crescent11Sun
12Mon1:005.612:017.56:094.47:190.49:066:34Waning Crescent12Mon
13Tue1:346.012:447.86:543.97:51-0.29:046:36New Moon13Tue
14Wed2:036.31:228.17:323.48:20-0.69:026:38New Moon14Wed
15Thu2:306.71:578.28:082.88:48-0.88:596:41New Moon15Thu
16Fri2:576.92:328.28:422.39:16-0.98:576:43New Moon16Fri
17Sat3:247.13:068.09:171.99:45-0.88:556:45Waxing Crescent17Sat
18Sun3:527.33:427.79:531.510:15-0.48:526:47Waxing Crescent18Sun
19Mon4:227.44:207.310:321.310:470.28:506:49Waxing Crescent19Mon
20Tue4:557.55:036.711:161.311:221.08:486:51Waxing Crescent20Tue
21Wed5:317.65:536.012:061.48:456:54First Quarter21Wed
22Thu6:157.56:565.312:022.01:061.58:436:56First Quarter22Thu
23Fri7:097.58:254.912:513.02:201.68:406:58First Quarter23Fri
24Sat8:187.510:125.01:563.83:481.28:387:00First Quarter24Sat
25Sun9:377.711:345.53:204.35:070.48:367:02Waxing Gibbous25Sun
26Mon10:518.14:454.06:11-0.58:337:04Waxing Gibbous26Mon
27Tue12:326.211:56 AM8.55:573.27:02-1.48:317:06Waxing Gibbous27Tue
28Wed1:176.912:528.96:572.37:47-1.98:287:09Full Moon28Wed
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 1:06 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 69% 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 First Quarter (69% 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