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

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 1h 42m at 7:13 pm (3.6 ft)
Next high tide (tomorrow) : 1:14 am (8.8 ft)
Sunset today : 10:23 pm
Sunrise tomorrow : 6:59 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:246.22:597.89:053.49:570.96:396:12Waxing Crescent1Fri
2Sat4:045.73:347.59:374.010:401.56:416:10Waxing Crescent2Sat
3Sun4:515.34:157.110:134.711:332.06:436:07First Quarter3Sun
4Mon5:554.95:096.711:035.26:456:05First Quarter4Mon
5Tue7:264.86:226.412:412.412:195.56:476:02First Quarter5Tue
6Wed8:525.17:516.32:022.31:585.36:495:59First Quarter6Wed
7Thu9:435.79:106.63:121.93:234.36:515:57Waxing Gibbous7Thu
8Fri10:216.410:137.04:041.34:242.96:535:54Waxing Gibbous8Fri
9Sat10:567.211:087.44:480.95:141.36:555:52Waxing Gibbous9Sat
10Sun11:318.111:597.75:290.76:00-0.16:575:49Full Moon10Sun
11Mon12:068.86:080.66:44-1.46:595:47Full Moon11Mon
12Tue12:477.812:449.46:470.87:29-2.27:015:44Full Moon12Tue
13Wed1:357.81:239.87:271.28:14-2.57:035:42Waning Gibbous13Wed
14Thu2:237.52:049.88:081.89:01-2.37:055:39Waning Gibbous14Thu
15Fri3:147.12:489.58:512.59:51-1.67:075:37Waning Gibbous15Fri
16Sat4:086.63:378.99:383.310:46-0.67:095:34Waning Gibbous16Sat
17Sun5:116.14:338.210:334.111:490.47:115:32Third Quarter17Sun
18Mon6:255.85:417.311:424.77:135:29Third Quarter18Mon
19Tue7:505.87:056.71:051.11:184.87:155:27Third Quarter19Tue
20Wed9:026.28:366.42:251.53:004.27:175:24Waning Crescent20Wed
21Thu9:546.69:506.43:311.64:103.17:195:22Waning Crescent21Thu
22Fri10:347.010:486.54:221.75:012.17:215:20Waning Crescent22Fri
23Sat11:087.411:366.65:031.85:431.17:235:17Waning Crescent23Sat
24Sun11:377.85:382.06:190.47:265:15New Moon24Sun
25Mon12:186.712:048.16:092.36:52-0.17:285:12New Moon25Mon
26Tue12:556.812:318.36:382.67:22-0.47:305:10New Moon26Tue
27Wed1:296.812:588.47:083.07:53-0.57:325:08New Moon27Wed
28Thu2:036.71:278.47:373.38:25-0.47:345:06Waxing Crescent28Thu
29Fri2:386.51:578.38:083.78:59-0.17:365:03Waxing Crescent29Fri
30Sat3:146.22:298.18:404.19:360.37:385:01Waxing Crescent30Sat
31Sun3:545.93:057.89:154.510:170.87:404:59Waxing Crescent31Sun
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 10:13 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 5% 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 Crescent (5% 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