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

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 47m at 8:13 pm (2.7 ft)
Next high tide (tomorrow) : 2:09 am (9.1 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 7:01 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jan 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:266.61:328.67:443.98:37-1.09:064:13Full Moon1Thu
2Fri2:576.72:078.38:223.79:07-0.79:064:15Waning Gibbous2Fri
3Sat3:276.72:437.98:593.59:36-0.39:054:16Waning Gibbous3Sat
4Sun3:566.73:197.39:393.510:060.39:054:17Waning Gibbous4Sun
5Mon4:266.73:576.610:213.410:361.09:044:19Waning Gibbous5Mon
6Tue4:576.74:405.911:083.411:071.89:044:20Third Quarter6Tue
7Wed5:326.85:315.212:033.49:034:22Third Quarter7Wed
8Thu6:126.96:404.61:103.39:034:23Third Quarter8Thu
9Fri7:017.18:184.412:263.72:292.89:024:25Third Quarter9Fri
10Sat7:597.310:024.61:244.53:462.09:014:26Waning Crescent10Sat
11Sun9:017.811:155.12:365.04:471.09:004:28Waning Crescent11Sun
12Mon10:008.33:495.15:39-0.18:594:30Waning Crescent12Mon
13Tue12:055.610:56 AM8.84:534.76:24-1.28:584:32Waning Crescent13Tue
14Wed12:466.211:49 AM9.35:514.17:06-2.18:574:33New Moon14Wed
15Thu1:246.712:389.66:433.37:45-2.68:564:35New Moon15Thu
16Fri2:017.11:259.67:322.58:24-2.88:554:37New Moon16Fri
17Sat2:397.62:139.38:211.89:03-2.58:544:39Waxing Crescent17Sat
18Sun3:177.93:018.69:111.49:41-1.88:524:41Waxing Crescent18Sun
19Mon3:568.13:517.710:041.110:20-0.78:514:43Waxing Crescent19Mon
20Tue4:378.24:456.711:001.211:000.78:504:45First Quarter20Tue
21Wed5:218.25:475.712:031.48:484:47First Quarter21Wed
22Thu6:108.07:094.91:191.68:474:49First Quarter22Thu
23Fri7:087.89:024.612:353.52:491.58:454:51First Quarter23Fri
24Sat8:167.710:425.01:424.64:111.18:444:53Waxing Gibbous24Sat
25Sun9:277.811:465.43:095.15:140.58:424:55Waxing Gibbous25Sun
26Mon10:307.94:305.16:040.08:404:57Waxing Gibbous26Mon
27Tue12:305.911:23 AM8.15:324.76:44-0.48:394:59Waxing Gibbous27Tue
28Wed1:056.212:078.36:204.17:18-0.78:375:01Full Moon28Wed
29Thu1:356.512:468.36:593.67:47-0.98:355:03Full Moon29Thu
30Fri2:016.71:218.27:353.08:14-0.98:335:06Full Moon30Fri
31Sat2:256.91:548.08:082.68:38-0.78:315:08Full Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

Show All
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 11:11 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 1% 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 New Moon (1% 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