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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 17m at 6:02 pm (5.3 ft)
Next high tide : 11:59 pm (7.0 ft)
Sunset today : 9:53 pm
Sunrise tomorrow : 7:24 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Nov 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:296.09:115.72:562.63:464.17:424:57Waning Crescent1Thu
2Fri10:026.510:115.93:432.54:332.97:444:55Waning Crescent2Fri
3Sat10:317.111:026.24:222.55:131.87:464:53Waning Crescent3Sat
4Sun11:007.711:476.44:572.55:490.77:484:51Waning Crescent4Sun
5Mon11:318.35:322.66:24-0.37:514:49New Moon5Mon
6Tue12:296.712:038.76:082.87:01-1.07:534:47New Moon6Tue
7Wed1:106.812:379.16:443.17:38-1.57:554:45New Moon7Wed
8Thu1:516.81:139.37:213.38:19-1.67:574:43New Moon8Thu
9Fri2:356.71:529.38:003.69:02-1.57:594:41Waxing Crescent9Fri
10Sat3:216.52:369.18:423.99:49-1.18:014:39Waxing Crescent10Sat
11Sun4:136.33:258.69:314.210:41-0.68:034:37Waxing Crescent11Sun
12Mon5:116.14:227.910:304.511:380.18:054:35First Quarter12Mon
13Tue6:156.15:307.111:434.68:074:33First Quarter13Tue
14Wed7:226.46:536.512:410.71:134.28:094:31First Quarter14Wed
15Thu8:236.88:246.11:471.32:473.28:114:30Waxing Gibbous15Thu
16Fri9:157.49:456.12:501.73:581.88:144:28Waxing Gibbous16Fri
17Sat10:008.110:526.33:462.14:550.58:164:26Waxing Gibbous17Sat
18Sun10:428.611:496.54:362.45:44-0.68:184:25Waxing Gibbous18Sun
19Mon11:229.05:222.86:27-1.38:204:23Full Moon19Mon
20Tue12:396.712:009.26:053.27:07-1.68:224:22Full Moon20Tue
21Wed1:246.812:379.26:453.57:46-1.58:244:20Full Moon21Wed
22Thu2:056.71:149.17:243.88:23-1.38:254:19Full Moon22Thu
23Fri2:456.61:508.88:024.19:00-0.88:274:17Waning Gibbous23Fri
24Sat3:256.42:278.48:404.49:38-0.28:294:16Waning Gibbous24Sat
25Sun4:066.23:067.99:204.710:170.48:314:15Waning Gibbous25Sun
26Mon4:495.93:487.210:054.910:581.08:334:14Waning Gibbous26Mon
27Tue5:345.84:356.610:585.111:421.68:354:12Third Quarter27Tue
28Wed6:235.85:325.912:045.08:374:11Third Quarter28Wed
29Thu7:146.06:445.312:292.21:254.78:384:10Third Quarter29Thu
30Fri8:036.38:095.11:212.72:483.98:404:09Third Quarter30Fri
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 9:00 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 83% 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 Waxing Gibbous (83% 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