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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 12:14 am (3.0 ft)
Next high tide : in 1h 58m at 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 - Feb 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:476.82:038.98:123.29:05-1.79:306:09New Moon1Sat
2Sun3:207.02:438.78:542.89:38-1.59:286:12New Moon2Sun
3Mon3:527.13:208.39:332.510:09-1.09:266:14Waxing Crescent3Mon
4Tue4:227.13:577.710:112.310:38-0.49:246:16Waxing Crescent4Tue
5Wed4:507.14:337.110:492.311:060.49:226:18Waxing Crescent5Wed
6Thu5:197.05:126.311:302.411:351.49:206:20Waxing Crescent6Thu
7Fri5:496.95:545.612:152.69:186:22First Quarter7Fri
8Sat6:236.96:454.912:052.41:082.89:166:25First Quarter8Sat
9Sun7:046.88:014.412:393.42:152.99:136:27First Quarter9Sun
10Mon7:576.710:074.21:234.43:432.79:116:29First Quarter10Mon
11Tue9:046.811:524.62:305.25:062.19:096:31Waxing Gibbous11Tue
12Wed10:137.13:565.56:061.29:076:33Waxing Gibbous12Wed
13Thu12:435.111:16 AM7.65:145.36:510.39:056:36Waxing Gibbous13Thu
14Fri1:195.712:098.16:144.67:29-0.79:026:38Waxing Gibbous14Fri
15Sat1:506.212:578.67:053.88:05-1.59:006:40Full Moon15Sat
16Sun2:206.61:418.97:502.88:39-2.08:586:42Full Moon16Sun
17Mon2:517.12:259.08:331.99:13-2.28:566:44Full Moon17Mon
18Tue3:237.53:088.89:161.19:48-1.98:536:46Waning Gibbous18Tue
19Wed3:567.93:538.310:010.510:23-1.38:516:49Waning Gibbous19Wed
20Thu4:318.14:407.510:490.211:00-0.38:496:51Waning Gibbous20Thu
21Fri5:098.35:326.611:410.311:381.08:466:53Waning Gibbous21Fri
22Sat5:518.26:325.712:390.68:446:55Third Quarter22Sat
23Sun6:398.07:534.912:222.41:501.08:416:57Third Quarter23Sun
24Mon7:397.79:494.71:143.73:201.18:396:59Third Quarter24Mon
25Tue8:557.511:305.12:284.74:510.88:367:01Waning Crescent25Tue
26Wed10:187.54:075.16:010.28:347:04Waning Crescent26Wed
27Thu12:325.711:30 AM7.85:354.76:53-0.48:327:06Waning Crescent27Thu
28Fri1:166.212:278.06:383.97:36-0.88:297:08Waning Crescent28Fri
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 9:21 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