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 2h 53m 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 - Oct 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:055.86:391.86:414.58:418:09Waning Crescent1Mon
2Tue12:166.71:326.37:181.37:223.58:438:07Waning Crescent2Tue
3Wed1:037.11:566.77:490.97:582.48:458:04Waning Crescent3Wed
4Thu1:447.32:207.28:170.68:311.58:478:02New Moon4Thu
5Fri2:227.52:447.78:450.59:040.68:497:59New Moon5Fri
6Sat2:597.63:108.19:130.79:38-0.18:517:56New Moon6Sat
7Sun3:367.53:378.49:421.010:14-0.68:537:54New Moon7Sun
8Mon4:157.34:078.610:131.610:52-0.88:557:51Waxing Crescent8Mon
9Tue4:566.94:408.710:462.311:34-0.68:577:49Waxing Crescent9Tue
10Wed5:426.55:188.511:223.18:597:46Waxing Crescent10Wed
11Thu6:355.96:038.212:23-0.212:034.09:017:44First Quarter11Thu
12Fri7:435.57:007.81:200.412:574.89:037:41First Quarter12Fri
13Sat9:165.38:167.32:310.92:135.39:057:39First Quarter13Sat
14Sun10:515.69:507.13:581.13:565.29:077:36First Quarter14Sun
15Mon11:546.211:187.25:180.95:324.29:097:34Waxing Gibbous15Mon
16Tue12:406.96:190.56:402.89:117:31Waxing Gibbous16Tue
17Wed12:277.51:187.67:080.27:331.39:137:29Waxing Gibbous17Wed
18Thu1:247.71:548.27:500.18:190.19:157:26Full Moon18Thu
19Fri2:157.82:278.68:270.39:01-0.89:177:24Full Moon19Fri
20Sat3:017.73:008.99:030.89:40-1.39:207:22Full Moon20Sat
21Sun3:447.53:319.09:371.510:18-1.49:227:19Full Moon21Sun
22Mon4:267.24:038.810:102.310:55-1.19:247:17Waning Gibbous22Mon
23Tue5:086.84:358.510:433.111:34-0.49:267:14Waning Gibbous23Tue
24Wed5:516.35:098.111:184.09:287:12Waning Gibbous24Wed
25Thu6:395.85:467.512:150.411:55 AM4.89:307:10Waning Gibbous25Thu
26Fri7:375.46:326.91:021.212:405.59:327:07Third Quarter26Fri
27Sat8:585.27:316.41:592.01:426.09:347:05Third Quarter27Sat
28Sun10:335.38:546.03:132.53:206.09:367:03Third Quarter28Sun
29Mon11:315.610:255.94:352.55:105.39:387:01Third Quarter29Mon
30Tue12:076.15:352.36:104.39:406:59Waning Crescent30Tue
31Wed12:366.66:182.06:543.19:436:56Waning Crescent31Wed
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