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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 13m at 11:33 am (-0.5 ft)
Next high tide : 5:44 pm (7.1 ft)
Sunset today : 10:41 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:376.911:278.05:26-0.15:352.06:386:13Waning Crescent1Sun
2Mon12:097.76:04-0.56:210.46:406:10New Moon2Mon
3Tue12:168.312:428.46:41-0.67:05-0.96:426:08New Moon3Tue
4Wed1:048.31:169.07:18-0.37:50-1.86:446:05New Moon4Wed
5Thu1:518.11:529.47:550.38:35-2.16:466:02Waxing Crescent5Thu
6Fri2:407.72:309.58:321.29:22-1.96:486:00Waxing Crescent6Fri
7Sat3:317.13:119.29:122.210:13-1.36:505:57Waxing Crescent7Sat
8Sun4:276.43:578.79:563.411:10-0.36:525:55First Quarter8Sun
9Mon5:345.84:518.010:474.56:545:52First Quarter9Mon
10Tue7:035.46:007.312:190.711:54 AM5.36:565:50First Quarter10Tue
11Wed8:455.57:326.81:501.41:405.66:585:47First Quarter11Wed
12Thu9:555.99:056.73:151.43:295.07:005:44Waxing Gibbous12Thu
13Fri10:426.410:136.84:171.24:353.97:035:42Waxing Gibbous13Fri
14Sat11:176.811:067.05:031.05:232.87:055:39Waxing Gibbous14Sat
15Sun11:467.211:497.15:401.06:011.87:075:37Waxing Gibbous15Sun
16Mon12:107.56:111.16:351.07:095:34Full Moon16Mon
17Tue12:277.112:337.86:371.37:050.37:115:32Full Moon17Tue
18Wed1:027.112:568.07:031.77:34-0.17:135:30Full Moon18Wed
19Thu1:367.01:208.27:282.28:04-0.37:155:27Full Moon19Thu
20Fri2:096.81:458.37:552.78:35-0.27:175:25Waning Gibbous20Fri
21Sat2:436.52:128.28:223.49:090.17:195:22Waning Gibbous21Sat
22Sun3:196.22:418.08:514.09:460.57:215:20Waning Gibbous22Sun
23Mon4:015.73:157.79:224.610:301.07:235:18Waning Gibbous23Mon
24Tue4:515.33:577.49:595.211:241.57:255:15Third Quarter24Tue
25Wed5:595.04:526.910:515.77:275:13Third Quarter25Wed
26Thu7:335.06:086.512:311.912:155.97:295:11Third Quarter26Thu
27Fri8:515.47:416.41:491.82:005.57:325:08Third Quarter27Fri
28Sat9:386.19:056.62:591.53:254.27:345:06Waning Crescent28Sat
29Sun10:156.810:127.03:541.14:272.67:365:04Waning Crescent29Sun
30Mon10:517.711:117.34:400.85:180.87:385:01Waning Crescent30Mon
31Tue11:278.65:230.76:05-0.87:404:59New Moon31Tue
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 2:38 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 Waning 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