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 5h 13m 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 - Dec 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:046.511:58 AM8.85:532.36:53-0.79:435:08Waxing Gibbous1Fri
2Sat12:586.912:419.46:412.27:39-1.89:445:07Full Moon2Sat
3Sun1:487.31:259.97:282.28:24-2.59:465:06Full Moon3Sun
4Mon2:377.52:1010.18:142.29:09-2.89:475:05Full Moon4Mon
5Tue3:257.52:559.99:012.49:55-2.79:495:05Waning Gibbous5Tue
6Wed4:157.53:439.59:512.710:43-2.29:505:04Waning Gibbous6Wed
7Thu5:067.34:358.810:433.011:33-1.39:525:04Waning Gibbous7Thu
8Fri6:017.15:307.911:433.49:535:03Third Quarter8Fri
9Sat6:597.06:337.012:26-0.312:523.79:545:03Third Quarter9Sat
10Sun8:027.07:496.21:230.72:163.79:555:03Third Quarter10Sun
11Mon9:057.19:175.72:261.63:463.19:575:02Third Quarter11Mon
12Tue10:037.310:395.63:322.34:572.39:585:02Waning Crescent12Tue
13Wed10:527.611:475.84:322.85:531.49:595:02Waning Crescent13Wed
14Thu11:347.95:253.16:390.610:005:02Waning Crescent14Thu
15Fri12:416.012:128.26:103.47:180.110:015:02Waning Crescent15Fri
16Sat1:266.312:478.46:513.57:53-0.410:015:02New Moon16Sat
17Sun2:046.51:208.57:283.68:25-0.610:025:02New Moon17Sun
18Mon2:396.61:538.68:033.78:56-0.710:035:03New Moon18Mon
19Tue3:126.72:268.58:383.79:27-0.710:045:03New Moon19Tue
20Wed3:456.72:598.39:123.89:59-0.610:045:03Waxing Crescent20Wed
21Thu4:196.63:338.09:483.910:32-0.310:055:04Waxing Crescent21Thu
22Fri4:546.54:097.610:274.011:070.110:055:05Waxing Crescent22Fri
23Sat5:316.44:487.111:104.111:450.610:055:05Waxing Crescent23Sat
24Sun6:116.45:346.612:014.210:065:06First Quarter24Sun
25Mon6:566.56:316.012:271.11:014.110:065:07First Quarter25Mon
26Tue7:476.77:445.51:151.82:143.710:065:07First Quarter26Tue
27Wed8:437.19:125.32:102.43:322.910:065:08First Quarter27Wed
28Thu9:407.610:375.53:132.84:431.710:065:09Waxing Gibbous28Thu
29Fri10:348.211:485.94:173.15:430.410:065:10Waxing Gibbous29Fri
30Sat11:278.95:183.16:37-0.910:065:11Waxing Gibbous30Sat
31Sun12:486.412:189.56:152.97:27-2.010:065:12Full Moon31Sun
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