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

TIDE TIMES for Thursday, June 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 12:00 pm (-0.6 ft)
Next high tide : in 4h 58m at 4:47 am (7.6 ft)
Sunset today : 11:12 pm
Sunrise tomorrow : 5:56 am
Moon phase : Waning Gibbous (89% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:566.28:046.31:203.01:360.65:5611:24First Quarter1Tue
2Wed7:515.38:466.42:213.02:141.65:5711:23First Quarter2Wed
3Thu8:574.79:306.53:322.82:562.65:5811:23First Quarter3Thu
4Fri10:234.310:186.74:482.43:463.55:5911:22First Quarter4Fri
5Sat11:544.311:076.95:541.84:434.16:0011:21Waxing Gibbous5Sat
6Sun1:084.66:501.25:424.56:0111:20Waxing Gibbous6Sun
7Mon2:024.97:370.56:394.66:0211:20Waxing Gibbous7Mon
8Tue12:437.62:435.38:19-0.17:304.56:0411:19Waxing Gibbous8Tue
9Wed1:287.93:195.68:56-0.68:164.26:0511:18Full Moon9Wed
10Thu2:118.23:535.89:31-1.28:593.96:0611:17Full Moon10Thu
11Fri2:518.44:256.010:05-1.69:403.46:0711:16Full Moon11Fri
12Sat3:318.44:586.210:38-1.810:223.06:0911:15Waning Gibbous12Sat
13Sun4:118.35:316.411:12-1.811:062.66:1011:13Waning Gibbous13Sun
14Mon4:527.96:056.711:47-1.511:532.36:1211:12Waning Gibbous14Mon
15Tue5:377.36:416.912:22-0.96:1311:11Waning Gibbous15Tue
16Wed6:276.67:207.212:462.01:000.06:1511:09Third Quarter16Wed
17Thu7:255.88:057.41:451.71:421.16:1611:08Third Quarter17Thu
18Fri8:375.08:577.72:541.42:302.26:1811:07Third Quarter18Fri
19Sat10:094.69:587.94:131.03:303.36:1911:05Waning Crescent19Sat
20Sun11:504.711:038.25:330.34:414.06:2111:04Waning Crescent20Sun
21Mon1:125.16:44-0.45:564.26:2311:02Waning Crescent21Mon
22Tue12:088.52:115.67:44-1.27:064.06:2411:00Waning Crescent22Tue
23Wed1:098.82:586.18:36-1.88:073.66:2610:59New Moon23Wed
24Thu2:049.03:396.49:20-2.18:593.06:2810:57New Moon24Thu
25Fri2:539.04:166.710:00-2.29:472.56:3010:55New Moon25Fri
26Sat3:398.74:526.810:37-2.010:312.16:3110:54Waxing Crescent26Sat
27Sun4:218.35:256.911:11-1.511:141.96:3310:52Waxing Crescent27Sun
28Mon5:027.65:576.911:43-0.811:571.96:3510:50Waxing Crescent28Mon
29Tue5:426.96:286.912:130.16:3710:48Waxing Crescent29Tue
30Wed6:246.16:596.812:412.012:431.26:3910:46First Quarter30Wed
31Thu7:105.37:346.71:292.21:152.36:4010:44First Quarter31Thu
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 8:23 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 89% 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 Waning Gibbous (89% 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