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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 3:22 am (2.4 ft)
Next high tide : in 1h 14m at 8:49 pm (6.7 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:50 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:048.64:408.110:35-1.410:54-0.17:429:30Waxing Crescent1Wed
2Thu4:508.25:188.311:13-0.711:42-0.27:449:27Waxing Crescent2Thu
3Fri5:397.55:598.311:530.37:469:24Waxing Crescent3Fri
4Sat6:336.76:448.212:34-0.112:351.47:489:22First Quarter4Sat
5Sun7:365.97:367.91:340.41:242.77:509:19First Quarter5Sun
6Mon8:575.38:417.52:440.92:233.87:529:17First Quarter6Mon
7Tue10:405.210:007.44:121.13:444.57:539:14First Quarter7Tue
8Wed12:075.55:380.95:184.57:559:11Waxing Gibbous8Wed
9Thu1:076.06:440.46:344.07:579:09Waxing Gibbous9Thu
10Fri12:267.71:526.57:360.07:313.27:599:06Waxing Gibbous10Fri
11Sat1:217.92:286.98:18-0.38:162.58:019:04Full Moon11Sat
12Sun2:078.12:597.18:54-0.58:551.88:039:01Full Moon12Sun
13Mon2:478.13:277.39:25-0.49:301.38:058:58Full Moon13Mon
14Tue3:237.93:547.59:53-0.110:030.98:078:56Full Moon14Tue
15Wed3:587.74:197.510:200.410:360.78:098:53Waning Gibbous15Wed
16Thu4:327.34:457.510:471.011:090.88:118:50Waning Gibbous16Thu
17Fri5:066.95:127.411:151.711:451.08:138:48Waning Gibbous17Fri
18Sat5:436.35:427.311:442.58:158:45Waning Gibbous18Sat
19Sun6:235.86:167.112:241.412:163.48:178:42Third Quarter19Sun
20Mon7:125.36:586.81:101.912:524.28:198:40Third Quarter20Mon
21Tue8:214.87:536.62:072.41:425.08:218:37Third Quarter21Tue
22Wed10:064.79:086.53:222.62:585.58:228:34Third Quarter22Wed
23Thu11:395.110:316.74:492.34:335.38:248:32Waning Crescent23Thu
24Fri12:315.65:591.65:514.68:268:29Waning Crescent24Fri
25Sat1:106.26:500.76:493.48:288:26Waning Crescent25Sat
26Sun12:407.71:446.97:330.07:392.18:308:24Waning Crescent26Sun
27Mon1:328.22:187.68:12-0.68:240.88:328:21New Moon27Mon
28Tue2:208.52:528.28:50-0.99:09-0.38:348:19New Moon28Tue
29Wed3:078.63:278.79:28-0.89:53-1.28:368:16New Moon29Wed
30Thu3:538.44:049.110:05-0.310:38-1.68:388:13Waxing Crescent30Thu
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 12:05 am — 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 neap phase. Tonight's moon is 49% 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 near their weekly minimum.

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 (49% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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