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

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide (tomorrow) : 4:41 am (2.0 ft)
Next high tide : in 4h 01m at 9:39 pm (6.8 ft)
Sunset today : 11:25 pm
Sunrise tomorrow : 5:51 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Mar 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:427.53:437.59:530.810:06-0.28:247:12Waning Gibbous1Thu
2Fri4:107.84:237.010:320.510:380.68:217:14Waning Gibbous2Fri
3Sat4:427.95:076.411:160.411:111.58:197:16Waning Gibbous3Sat
4Sun5:187.96:005.612:070.68:167:18Third Quarter4Sun
5Mon6:017.87:095.01:091.08:147:20Third Quarter5Mon
6Tue6:567.68:534.612:373.82:281.28:117:23Third Quarter6Tue
7Wed8:107.510:484.91:474.74:030.98:097:25Third Quarter7Wed
8Thu9:387.511:585.53:235.05:230.28:067:27Waning Crescent8Thu
9Fri10:587.94:584.56:23-0.78:047:29Waning Crescent9Fri
10Sat12:456.212:048.26:113.47:10-1.38:017:31Waning Crescent10Sat
11Sun1:246.91:598.58:072.28:51-1.78:588:33New Moon11Sun
12Mon3:007.42:488.68:551.19:27-1.78:568:35New Moon12Mon
13Tue3:337.83:328.49:380.210:01-1.48:538:37New Moon13Tue
14Wed4:058.14:148.010:19-0.310:33-0.78:518:39New Moon14Wed
15Thu4:368.24:557.410:59-0.511:040.28:488:41Waxing Crescent15Thu
16Fri5:068.15:356.711:38-0.311:351.38:458:43Waxing Crescent16Fri
17Sat5:367.96:176.012:180.28:438:45Waxing Crescent17Sat
18Sun6:087.67:035.312:062.41:020.98:408:47First Quarter18Sun
19Mon6:447.18:024.712:383.51:531.78:378:49First Quarter19Mon
20Tue7:286.79:474.31:164.53:022.38:358:51First Quarter20Tue
21Wed8:316.32:115.34:442.48:328:53First Quarter21Wed
22Thu12:014.59:59 AM6.13:495.76:072.08:308:55Waxing Gibbous22Thu
23Fri12:575.011:24 AM6.35:425.36:591.48:278:57Waxing Gibbous23Fri
24Sat1:295.412:266.76:484.57:370.78:248:59Waxing Gibbous24Sat
25Sun1:545.91:157.07:323.48:090.28:229:01Waxing Gibbous25Sun
26Mon2:186.41:577.38:102.48:37-0.28:199:03Full Moon26Mon
27Tue2:426.92:367.58:461.39:05-0.48:169:06Full Moon27Tue
28Wed3:077.43:147.69:210.39:34-0.38:149:08Full Moon28Wed
29Thu3:347.93:537.59:57-0.510:040.18:119:10Full Moon29Thu
30Fri4:028.24:347.210:35-1.010:360.78:099:12Waning Gibbous30Fri
31Sat4:338.55:176.711:16-1.211:101.58:069:14Waning Gibbous31Sat
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 1:10 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 59% 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 (59% 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