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

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : in 1h 50m at 10:02 pm (2.1 ft)
Next high tide : 3:56 am (9.2 ft)
Sunset today : 11:11 pm
Sunrise tomorrow : 6:13 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Apr 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:366.711:275.63:384.85:000.57:058:14Waning Crescent1Sat
2Sun11:527.06:013.56:50-0.18:029:16Waning Crescent2Sun
3Mon1:046.512:557.47:031.97:33-0.58:009:18Waning Crescent3Mon
4Tue1:407.41:517.77:550.28:13-0.67:579:20New Moon4Tue
5Wed2:158.22:427.88:43-1.28:52-0.47:559:22New Moon5Wed
6Thu2:518.93:317.79:28-2.39:300.17:529:24New Moon6Thu
7Fri3:289.34:197.410:13-2.810:090.87:499:26Waxing Crescent7Fri
8Sat4:079.45:086.910:59-2.710:481.77:479:28Waxing Crescent8Sat
9Sun4:479.26:006.311:47-2.011:302.67:449:30Waxing Crescent9Sun
10Mon5:308.76:575.712:38-1.17:429:32Waxing Crescent10Mon
11Tue6:198.08:075.212:163.61:370.07:399:35First Quarter11Tue
12Wed7:157.29:405.01:114.42:500.97:379:37First Quarter12Wed
13Thu8:296.511:085.22:285.04:181.47:349:39First Quarter13Thu
14Fri10:016.04:254.95:311.47:329:41First Quarter14Fri
15Sat12:055.511:25 AM6.05:534.16:241.37:299:43Waxing Gibbous15Sat
16Sun12:446.012:276.16:503.07:041.27:279:45Waxing Gibbous16Sun
17Mon1:156.41:166.27:331.97:371.27:249:47Waxing Gibbous17Mon
18Tue1:406.81:586.38:091.08:051.37:229:49Waxing Gibbous18Tue
19Wed2:047.22:366.48:410.28:321.67:199:51Full Moon19Wed
20Thu2:287.63:116.49:11-0.48:591.97:179:53Full Moon20Thu
21Fri2:537.93:466.49:41-0.89:272.37:149:55Full Moon21Fri
22Sat3:198.04:206.210:12-0.99:562.77:129:57Full Moon22Sat
23Sun3:488.14:566.010:46-0.910:263.27:109:59Waning Gibbous23Sun
24Mon4:188.15:355.711:22-0.610:583.67:0710:01Waning Gibbous24Mon
25Tue4:527.96:205.312:04-0.37:0510:03Waning Gibbous25Tue
26Wed5:327.67:155.012:520.17:0210:05Waning Gibbous26Wed
27Thu6:207.28:224.812:214.51:480.57:0010:07Third Quarter27Thu
28Fri7:226.79:385.01:264.72:530.76:5810:09Third Quarter28Fri
29Sat8:416.310:425.52:534.64:020.76:5610:11Third Quarter29Sat
30Sun10:106.111:316.34:273.75:050.76:5310:13Waning Crescent30Sun
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 12:59 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 spring phase. Tonight's moon is 3% 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 maximum.

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 New Moon (3% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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