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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 07m at 4:41 am (2.0 ft)
Next high tide : 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 - Sep 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:065.26:281.75:575.37:439:28Waning Crescent1Sat
2Sun1:465.67:191.26:574.77:459:26Waning Crescent2Sun
3Mon12:427.22:165.97:590.77:414.07:479:23Waning Crescent3Mon
4Tue1:277.52:426.38:320.28:193.27:499:21New Moon4Tue
5Wed2:067.83:066.69:00-0.28:532.47:519:18New Moon5Wed
6Thu2:427.93:306.99:26-0.49:261.87:539:15New Moon6Thu
7Fri3:177.93:547.29:52-0.39:591.27:549:13New Moon7Fri
8Sat3:517.74:207.510:18-0.110:340.87:569:10Waxing Crescent8Sat
9Sun4:277.44:477.710:460.411:110.57:589:07Waxing Crescent9Sun
10Mon5:057.05:167.811:161.111:520.58:009:05Waxing Crescent10Mon
11Tue5:476.55:507.911:492.08:029:02Waxing Crescent11Tue
12Wed6:365.96:317.812:390.712:253.08:049:00First Quarter12Wed
13Thu7:395.27:237.61:361.01:114.08:068:57First Quarter13Thu
14Fri9:094.98:327.42:471.42:144.88:088:54First Quarter14Fri
15Sat11:015.09:597.44:161.33:465.28:108:52Waxing Gibbous15Sat
16Sun12:185.55:420.75:224.78:128:49Waxing Gibbous16Sun
17Mon1:096.26:46-0.16:373.68:148:46Waxing Gibbous17Mon
18Tue12:328.21:506.97:37-0.87:362.38:168:44Waxing Gibbous18Tue
19Wed1:318.52:277.58:20-1.28:271.08:188:41Full Moon19Wed
20Thu2:228.73:028.18:59-1.29:130.08:208:38Full Moon20Thu
21Fri3:098.63:368.49:35-0.99:56-0.68:228:36Full Moon21Fri
22Sat3:548.24:098.610:10-0.310:37-0.98:238:33Waning Gibbous22Sat
23Sun4:387.74:428.510:440.611:19-0.78:258:30Waning Gibbous23Sun
24Mon5:227.15:168.311:171.78:278:28Waning Gibbous24Mon
25Tue6:086.45:507.912:01-0.111:52 AM2.98:298:25Waning Gibbous25Tue
26Wed6:585.76:297.412:470.712:284.08:318:22Third Quarter26Wed
27Thu8:025.17:166.91:391.51:125.08:338:20Third Quarter27Thu
28Fri9:454.88:216.42:482.32:145.78:358:17Third Quarter28Fri
29Sat11:355.09:516.24:252.64:016.08:378:15Third Quarter29Sat
30Sun12:315.45:462.35:445.48:398:12Waning Crescent30Sun
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 7:28 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 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