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

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 49m at 9:29 am (-0.8 ft)
Next high tide : 3:51 pm (5.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:54 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:407.12:045.97:530.77:373.67:429:30Waxing Gibbous1Tue
2Wed1:247.42:296.38:230.38:142.77:449:27Full Moon2Wed
3Thu2:037.62:526.78:490.08:481.97:469:24Full Moon3Thu
4Fri2:387.73:157.19:14-0.19:201.27:489:22Full Moon4Fri
5Sat3:137.63:397.59:390.19:540.77:509:19Full Moon5Sat
6Sun3:477.54:047.810:050.410:280.37:529:17Waning Gibbous6Sun
7Mon4:227.24:328.010:330.911:050.17:539:14Waning Gibbous7Mon
8Tue5:006.85:028.111:031.611:450.27:559:11Waning Gibbous8Tue
9Wed5:416.35:378.111:352.57:579:09Waning Gibbous9Wed
10Thu6:305.76:198.012:320.612:113.37:599:06Third Quarter10Thu
11Fri7:335.17:137.71:291.012:574.28:019:03Third Quarter11Fri
12Sat9:044.78:257.42:401.42:044.98:039:01Third Quarter12Sat
13Sun10:554.99:547.44:101.33:405.08:058:58Waning Crescent13Sun
14Mon12:075.55:340.85:194.48:078:56Waning Crescent14Mon
15Tue12:556.26:350.16:333.18:098:53Waning Crescent15Tue
16Wed12:288.01:357.07:24-0.57:321.78:118:50Waning Crescent16Wed
17Thu1:268.22:117.78:06-0.88:220.48:138:48New Moon17Thu
18Fri2:188.42:468.38:45-0.89:07-0.68:158:45New Moon18Fri
19Sat3:058.33:208.79:21-0.49:50-1.28:178:42New Moon19Sat
20Sun3:508.03:548.99:560.310:32-1.38:198:40Waxing Crescent20Sun
21Mon4:347.54:288.810:301.111:13-1.08:218:37Waxing Crescent21Mon
22Tue5:186.95:038.511:042.111:55-0.38:228:34Waxing Crescent22Tue
23Wed6:036.35:398.111:403.28:248:32Waxing Crescent23Wed
24Thu6:545.66:207.512:410.612:184.18:268:29First Quarter24Thu
25Fri7:575.17:106.91:351.61:035.08:288:26First Quarter25Fri
26Sat9:364.88:186.42:462.32:075.68:308:24First Quarter26Sat
27Sun11:185.09:496.24:232.63:535.78:328:21First Quarter27Sun
28Mon12:125.45:382.35:355.18:348:19Waxing Gibbous28Mon
29Tue12:475.86:281.96:324.18:368:16Waxing Gibbous29Tue
30Wed12:116.51:136.37:051.57:143.08:388:13Waxing 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 12:40 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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