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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 01m at 12:08 pm (-0.7 ft)
Next high tide : 6:29 pm (6.2 ft)
Sunset today : 11:22 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waning Gibbous (79% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:036.06:368.312:49-0.612:323.68:398:12First Quarter1Wed
2Thu8:195.57:387.71:530.31:304.68:418:09First Quarter2Thu
3Fri10:035.39:007.23:151.02:525.38:438:07First Quarter3Fri
4Sat11:335.710:357.04:491.24:455.28:458:04Waxing Gibbous4Sat
5Sun12:326.26:020.96:114.38:478:02Waxing Gibbous5Sun
6Mon1:146.76:560.67:093.18:497:59Waxing Gibbous6Mon
7Tue12:547.41:487.17:390.47:542.18:517:57Waxing Gibbous7Tue
8Wed1:427.52:187.58:150.38:331.28:537:54Full Moon8Wed
9Thu2:247.52:447.88:450.59:070.58:557:51Full Moon9Thu
10Fri3:027.53:098.09:130.99:380.08:577:49Full Moon10Fri
11Sat3:377.33:338.19:391.410:09-0.28:597:46Full Moon11Sat
12Sun4:117.03:588.110:062.110:40-0.29:017:44Waning Gibbous12Sun
13Mon4:456.74:248.110:332.811:140.19:037:41Waning Gibbous13Mon
14Tue5:216.34:527.911:013.511:500.69:057:39Waning Gibbous14Tue
15Wed6:015.95:247.611:314.39:077:36Waning Gibbous15Wed
16Thu6:485.46:027.212:311.212:055.09:097:34Third Quarter16Thu
17Fri7:515.06:536.81:221.912:515.69:117:31Third Quarter17Fri
18Sat9:294.98:036.42:272.32:046.09:137:29Third Quarter18Sat
19Sun11:035.29:346.33:502.33:495.99:157:26Third Quarter19Sun
20Mon11:515.710:586.55:061.95:214.99:177:24Waning Crescent20Mon
21Tue12:266.36:011.46:213.59:197:22Waning Crescent21Tue
22Wed12:046.912:587.16:450.87:102.09:227:19Waning Crescent22Wed
23Thu12:597.31:307.97:240.57:550.49:247:17Waning Crescent23Thu
24Fri1:507.62:048.68:030.58:39-1.09:267:14New Moon24Fri
25Sat2:397.82:399.38:410.79:22-2.09:287:12New Moon25Sat
26Sun2:267.82:169.78:201.19:06-2.58:306:10New Moon26Sun
27Mon3:157.62:559.89:001.89:52-2.58:326:08Waxing Crescent27Mon
28Tue4:057.23:379.69:412.610:41-1.98:346:05Waxing Crescent28Tue
29Wed5:006.74:239.110:263.511:35-1.08:366:03Waxing Crescent29Wed
30Thu6:026.25:168.411:184.38:386:01First Quarter30Thu
31Fri7:165.96:207.612:370.012:245.18:405:59First Quarter31Fri
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 3:18 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 79% 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 Gibbous (79% 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