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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 3:57 pm (2.6 ft)
Next high tide : in 5h 26m at 10:15 am (4.7 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 - May 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:358.34:296.710:22-1.410:121.96:5110:15Full Moon1Tue
2Wed4:068.25:086.410:57-1.210:462.56:4910:17Waning Gibbous2Wed
3Thu4:377.95:486.011:33-0.811:203.16:4710:19Waning Gibbous3Thu
4Fri5:117.66:305.712:11-0.26:4510:21Waning Gibbous4Fri
5Sat5:487.17:185.312:540.56:4210:23Waning Gibbous5Sat
6Sun6:306.68:175.112:414.31:431.16:4010:25Third Quarter6Sun
7Mon7:236.19:295.01:374.72:411.66:3810:27Third Quarter7Mon
8Tue8:305.610:375.32:504.83:481.86:3610:29Third Quarter8Tue
9Wed9:525.411:275.74:214.44:521.86:3410:31Third Quarter9Wed
10Thu11:095.55:363.65:461.66:3210:33Waning Crescent10Thu
11Fri12:076.312:135.86:312.46:311.46:3010:34Waning Crescent11Fri
12Sat12:446.91:076.17:161.27:131.26:2810:36Waning Crescent12Sat
13Sun1:197.51:566.57:59-0.17:541.26:2610:38New Moon13Sun
14Mon1:558.12:436.78:40-1.28:341.26:2410:40New Moon14Mon
15Tue2:318.73:296.99:21-2.19:151.46:2310:42New Moon15Tue
16Wed3:109.04:156.910:04-2.69:561.76:2110:44New Moon16Wed
17Thu3:519.25:036.810:48-2.810:402.16:1910:46Waxing Crescent17Thu
18Fri4:349.05:556.511:35-2.511:282.66:1710:47Waxing Crescent18Fri
19Sat5:228.66:516.312:26-2.06:1610:49Waxing Crescent19Sat
20Sun6:158.07:526.112:223.11:21-1.36:1410:51First Quarter20Sun
21Mon7:167.39:016.11:263.52:22-0.56:1210:53First Quarter21Mon
22Tue8:296.510:096.32:453.63:290.26:1110:54First Quarter22Tue
23Wed9:536.011:106.74:183.14:370.76:0910:56First Quarter23Wed
24Thu11:165.85:382.25:381.06:0810:58Waxing Gibbous24Thu
25Fri12:007.112:265.96:411.16:301.36:0710:59Waxing Gibbous25Fri
26Sat12:437.61:266.07:320.17:161.66:0511:01Waxing Gibbous26Sat
27Sun1:227.92:166.28:16-0.67:581.96:0411:02Full Moon27Sun
28Mon1:588.13:006.38:55-1.18:362.26:0311:04Full Moon28Mon
29Tue2:328.23:416.39:31-1.49:112.56:0111:05Full Moon29Tue
30Wed3:058.24:196.310:05-1.49:462.86:0011:07Full Moon30Wed
31Thu3:378.24:566.110:38-1.310:213.15:5911:08Waning Gibbous31Thu
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 1:06 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