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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 58m at 12:46 pm (-1.6 ft)
Next high tide : 7:12 pm (6.6 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:388.84:058.110:05-1.710:15-0.78:049:15Full Moon1Wed
2Thu4:168.94:527.710:50-1.910:540.28:019:17Waning Gibbous2Thu
3Fri4:548.85:407.011:35-1.611:331.27:599:19Waning Gibbous3Fri
4Sat5:338.46:316.312:22-0.97:569:21Waning Gibbous4Sat
5Sun6:147.97:285.612:142.41:130.07:549:23Third Quarter5Sun
6Mon7:017.28:405.112:593.52:130.97:519:25Third Quarter6Mon
7Tue7:576.610:175.01:554.43:301.67:489:27Third Quarter7Tue
8Wed9:136.111:415.23:165.04:581.87:469:29Third Quarter8Wed
9Thu10:426.05:064.86:051.67:439:31Waning Crescent9Thu
10Fri12:345.611:54 AM6.16:204.16:541.37:419:33Waning Crescent10Fri
11Sat1:116.012:496.47:103.27:321.07:389:35Waning Crescent11Sat
12Sun1:416.41:336.67:492.28:040.87:369:37Waning Crescent12Sun
13Mon2:076.82:126.88:231.48:330.77:339:39New Moon13Mon
14Tue2:327.22:486.98:550.69:000.77:319:41New Moon14Tue
15Wed2:587.53:236.99:26-0.19:280.97:289:43New Moon15Wed
16Thu3:247.83:586.89:58-0.59:571.27:269:45New Moon16Thu
17Fri3:528.04:346.710:31-0.810:281.77:239:47Waxing Crescent17Fri
18Sat4:218.15:126.411:07-0.811:002.37:219:49Waxing Crescent18Sat
19Sun4:548.05:556.011:47-0.711:372.97:189:51Waxing Crescent19Sun
20Mon5:317.86:455.612:33-0.47:169:53Waxing Crescent20Mon
21Tue6:167.57:475.312:193.51:260.17:139:56First Quarter21Tue
22Wed7:127.19:065.21:144.12:300.57:119:58First Quarter22Wed
23Thu8:236.710:295.42:284.43:450.67:0910:00First Quarter23Thu
24Fri9:506.511:346.04:004.25:000.47:0610:02First Quarter24Fri
25Sat11:146.75:273.26:030.17:0410:04Waxing Gibbous25Sat
26Sun12:246.712:256.96:361.76:56-0.17:0210:06Waxing Gibbous26Sun
27Mon1:087.51:267.27:320.37:43-0.26:5910:08Waxing Gibbous27Mon
28Tue1:498.22:207.48:22-1.08:26-0.16:5710:10Full Moon28Tue
29Wed2:288.73:097.59:07-1.99:080.26:5510:12Full Moon29Wed
30Thu3:079.03:577.39:51-2.49:470.86:5210:14Full Moon30Thu
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 3:59 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 29% 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 Waxing Crescent (29% 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