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 3h 26m 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 - Oct 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:526.85:398.111:412.58:408:10Waning Gibbous1Tue
2Wed6:416.26:217.512:290.312:233.48:428:08Third Quarter2Wed
3Thu7:385.77:106.91:191.21:114.38:448:05Third Quarter3Thu
4Fri8:525.38:136.42:192.02:144.98:468:02Third Quarter4Fri
5Sat10:235.39:346.13:372.53:465.18:488:00Third Quarter5Sat
6Sun11:325.610:556.14:592.65:214.68:507:57Waning Crescent6Sun
7Mon12:186.05:582.36:213.88:527:55Waning Crescent7Mon
8Tue12:526.56:432.07:052.98:547:52Waning Crescent8Tue
9Wed12:496.71:226.97:181.77:422.08:567:50Waning Crescent9Wed
10Thu1:317.01:517.47:501.58:161.18:587:47New Moon10Thu
11Fri2:107.22:197.98:211.38:490.49:007:45New Moon11Fri
12Sat2:477.42:498.28:521.49:23-0.29:027:42New Moon12Sat
13Sun3:247.43:198.59:241.59:58-0.69:047:40New Moon13Sun
14Mon4:027.33:518.69:571.810:36-0.89:077:37Waxing Crescent14Mon
15Tue4:417.14:268.610:332.211:16-0.79:097:35Waxing Crescent15Tue
16Wed5:256.85:058.511:122.89:117:32Waxing Crescent16Wed
17Thu6:146.45:518.112:02-0.311:56 AM3.49:137:30Waxing Crescent17Thu
18Fri7:116.16:457.612:530.212:503.99:157:27First Quarter18Fri
19Sat8:215.97:547.11:530.71:584.39:177:25First Quarter19Sat
20Sun9:416.09:186.83:041.13:254.29:197:22First Quarter20Sun
21Mon10:536.510:466.84:211.34:563.59:217:20Waxing Gibbous21Mon
22Tue11:497.15:291.16:092.29:237:18Waxing Gibbous22Tue
23Wed12:007.012:377.86:261.07:060.99:257:15Waxing Gibbous23Wed
24Thu1:027.31:208.47:150.97:56-0.29:277:13Waxing Gibbous24Thu
25Fri1:557.62:008.97:590.98:40-1.19:297:11Full Moon25Fri
26Sat2:437.72:389.18:401.19:22-1.59:317:08Full Moon26Sat
27Sun2:287.72:149.28:191.59:02-1.68:346:06Full Moon27Sun
28Mon3:117.52:519.08:572.09:41-1.38:366:04Waning Gibbous28Mon
29Tue3:537.23:278.79:352.710:20-0.78:386:01Waning Gibbous29Tue
30Wed4:366.84:048.210:133.311:000.08:405:59Waning Gibbous30Wed
31Thu5:216.44:437.610:544.011:430.88:425:57Waning Gibbous31Thu
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