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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 3:47 pm (3.3 ft)
Next high tide : in 2h 17m at 10:22 am (4.5 ft)
Sunset today : 11:18 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:217.75:388.311:330.27:429:29Waning Gibbous1Sun
2Mon6:106.96:208.012:100.012:131.47:449:27Waning Gibbous2Mon
3Tue7:036.17:067.51:010.712:562.57:469:24Third Quarter3Tue
4Wed8:065.47:597.01:591.51:463.67:489:21Third Quarter4Wed
5Thu9:315.09:066.63:132.12:504.47:509:19Third Quarter5Thu
6Fri11:095.010:246.54:422.34:194.77:529:16Waning Crescent6Fri
7Sat12:185.35:562.05:444.57:549:14Waning Crescent7Sat
8Sun1:055.76:491.66:433.97:569:11Waning Crescent8Sun
9Mon12:306.91:396.17:301.27:273.27:589:08Waning Crescent9Mon
10Tue1:157.22:086.58:040.88:052.48:009:06Waning Crescent10Tue
11Wed1:557.52:356.98:330.58:391.78:019:03New Moon11Wed
12Thu2:317.63:017.39:010.39:111.28:039:00New Moon12Thu
13Fri3:057.73:287.69:280.39:440.78:058:58New Moon13Fri
14Sat3:407.63:567.89:570.510:180.48:078:55New Moon14Sat
15Sun4:147.44:257.910:270.910:540.38:098:52Waxing Crescent15Sun
16Mon4:517.14:568.010:591.411:330.48:118:50Waxing Crescent16Mon
17Tue5:316.75:327.911:332.08:138:47Waxing Crescent17Tue
18Wed6:186.26:147.712:180.612:132.88:158:45First Quarter18Wed
19Thu7:145.77:067.51:101.01:013.58:178:42First Quarter19Thu
20Fri8:275.48:127.22:131.32:044.18:198:39First Quarter20Fri
21Sat9:585.49:347.13:301.53:274.38:218:37First Quarter21Sat
22Sun11:195.810:577.34:521.24:563.88:238:34Waxing Gibbous22Sun
23Mon12:186.56:010.66:112.88:258:31Waxing Gibbous23Mon
24Tue12:087.71:077.26:560.07:121.58:278:29Waxing Gibbous24Tue
25Wed1:098.11:497.97:44-0.48:040.38:298:26Full Moon25Wed
26Thu2:028.42:298.58:27-0.68:51-0.68:318:23Full Moon26Thu
27Fri2:518.43:078.99:08-0.49:35-1.28:338:21Full Moon27Fri
28Sat3:378.33:459.09:460.010:18-1.48:348:18Waning Gibbous28Sat
29Sun4:227.94:228.910:240.711:00-1.18:368:16Waning Gibbous29Sun
30Mon5:067.45:008.611:021.511:43-0.58:388:13Waning Gibbous30Mon
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 1:04 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 28% 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 Waning Crescent (28% 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