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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 2h 45m at 3:57 pm (2.6 ft)
Next high tide : 10:28 pm (6.9 ft)
Sunset today : 11:26 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:416.06:231.86:293.88:408:10Waxing Gibbous1Sun
2Mon12:156.81:146.67:041.37:142.88:428:08Waxing Gibbous2Mon
3Tue1:037.21:467.17:410.77:541.78:448:05Waxing Gibbous3Tue
4Wed1:487.62:177.78:150.48:330.68:468:03Full Moon4Wed
5Thu2:307.92:498.28:490.29:12-0.38:488:00Full Moon5Thu
6Fri3:118.03:228.79:240.39:52-0.98:507:58Full Moon6Fri
7Sat3:547.93:578.910:010.610:34-1.38:527:55Waning Gibbous7Sat
8Sun4:387.74:359.010:391.211:19-1.28:547:52Waning Gibbous8Sun
9Mon5:267.25:178.811:201.98:567:50Waning Gibbous9Mon
10Tue6:196.76:048.412:08-0.812:062.88:587:47Third Quarter10Tue
11Wed7:226.27:007.91:04-0.21:003.79:007:45Third Quarter11Wed
12Thu8:395.98:107.42:090.52:094.39:027:42Third Quarter12Thu
13Fri10:085.99:367.03:271.03:414.59:047:40Third Quarter13Fri
14Sat11:246.311:027.04:501.15:163.99:067:37Waning Crescent14Sat
15Sun12:196.95:580.96:262.89:087:35Waning Crescent15Sun
16Mon12:127.21:047.46:510.77:201.79:107:32Waning Crescent16Mon
17Tue1:107.41:427.87:360.68:050.89:127:30Waning Crescent17Tue
18Wed1:597.62:168.28:140.78:450.09:157:27New Moon18Wed
19Thu2:427.62:478.48:491.09:21-0.49:177:25New Moon19Thu
20Fri3:227.53:168.59:211.49:55-0.69:197:23New Moon20Fri
21Sat3:597.33:468.49:521.910:29-0.59:217:20Waxing Crescent21Sat
22Sun4:367.14:158.310:242.511:02-0.29:237:18Waxing Crescent22Sun
23Mon5:136.74:468.010:563.111:380.39:257:15Waxing Crescent23Mon
24Tue5:526.35:197.611:303.89:277:13Waxing Crescent24Tue
25Wed6:365.95:577.212:180.912:094.59:297:11Waxing Crescent25Wed
26Thu7:285.66:446.71:031.512:565.09:317:08First Quarter26Thu
27Fri8:365.47:446.21:572.11:585.49:337:06First Quarter27Fri
28Sat9:555.59:035.93:032.53:235.49:357:04First Quarter28Sat
29Sun11:005.810:286.04:162.54:534.79:387:02First Quarter29Sun
30Mon11:466.411:376.35:182.25:583.69:406:59Waxing Gibbous30Mon
31Tue12:247.06:081.86:472.49:426:57Waxing Gibbous31Tue
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 7:12 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 69% 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 First Quarter (69% 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