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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 30m at 1:31 pm (-0.6 ft)
Next high tide : 8:00 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:507.711:195.13:223.35:151.310:065:13Waxing Gibbous1Sun
2Mon10:417.94:234.16:110.610:055:15Waxing Gibbous2Mon
3Tue12:295.411:28 AM8.15:224.56:580.010:055:16Waxing Gibbous3Tue
4Wed1:225.712:128.36:154.77:39-0.310:055:17Waxing Gibbous4Wed
5Thu2:036.012:538.47:024.78:15-0.610:045:19Full Moon5Thu
6Fri2:396.21:318.57:424.68:48-0.710:045:20Full Moon6Fri
7Sat3:116.32:088.68:204.49:19-0.810:035:22Full Moon7Sat
8Sun3:416.42:428.48:554.29:49-0.710:025:23Full Moon8Sun
9Mon4:116.43:178.29:314.010:19-0.610:015:25Waning Gibbous9Mon
10Tue4:406.43:527.710:083.810:49-0.210:015:26Waning Gibbous10Tue
11Wed5:106.44:287.210:493.711:200.210:005:28Waning Gibbous11Wed
12Thu5:416.55:096.611:333.611:520.99:595:30Waning Gibbous12Thu
13Fri6:146.65:565.912:253.59:585:32Third Quarter13Fri
14Sat6:526.86:565.212:271.71:263.39:575:33Third Quarter14Sat
15Sun7:377.08:184.71:082.72:402.89:565:35Third Quarter15Sun
16Mon8:317.410:014.62:003.63:592.09:545:37Third Quarter16Mon
17Tue9:327.811:335.03:064.45:110.99:535:39Waning Crescent17Tue
18Wed10:348.44:194.86:12-0.39:525:41Waning Crescent18Wed
19Thu12:405.611:35 AM9.05:294.77:06-1.49:515:43Waning Crescent19Thu
20Fri1:316.112:329.56:324.27:54-2.39:495:45New Moon20Fri
21Sat2:156.71:259.87:293.58:38-2.99:485:47New Moon21Sat
22Sun2:567.12:169.98:222.89:21-3.09:465:49New Moon22Sun
23Mon3:377.43:059.69:122.110:02-2.89:455:51Waxing Crescent23Mon
24Tue4:177.73:549.010:031.710:41-2.19:435:53Waxing Crescent24Tue
25Wed4:577.84:438.110:551.511:20-1.09:425:55Waxing Crescent25Wed
26Thu5:377.85:357.011:501.611:590.39:405:57First Quarter26Thu
27Fri6:197.86:325.912:501.89:385:59First Quarter27Fri
28Sat7:047.67:435.012:391.72:002.09:376:01First Quarter28Sat
29Sun7:557.49:264.51:243.13:252.09:356:03First Quarter29Sun
30Mon8:557.311:184.72:204.34:491.79:336:05Waxing Gibbous30Mon
31Tue10:007.33:375.15:551.29:316:08Waxing Gibbous31Tue
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 4:45 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 39% 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 (39% 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