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 2h 36m 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 - Dec 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:327.19:406.12:551.34:043.09:425:08Waning Crescent1Sat
2Sun10:277.610:586.24:011.75:131.89:445:07Waning Crescent2Sun
3Mon11:158.14:582.16:080.79:465:06Waning Crescent3Mon
4Tue12:036.411:57 AM8.55:492.36:55-0.39:475:05Waning Crescent4Tue
5Wed12:576.612:368.86:352.67:37-0.99:495:05New Moon5Wed
6Thu1:456.81:138.97:172.98:15-1.29:505:04New Moon6Thu
7Fri2:276.91:489.07:553.18:50-1.39:515:04New Moon7Fri
8Sat3:066.92:228.88:323.49:24-1.19:535:03New Moon8Sat
9Sun3:436.82:568.69:083.79:59-0.89:545:03Waxing Crescent9Sun
10Mon4:206.63:308.29:454.010:34-0.39:555:03Waxing Crescent10Mon
11Tue4:586.44:067.810:234.311:100.29:565:02Waxing Crescent11Tue
12Wed5:386.24:467.211:064.611:490.89:575:02Waxing Crescent12Wed
13Thu6:216.15:306.611:554.89:585:02First Quarter13Thu
14Fri7:096.16:246.012:321.412:554.99:595:02First Quarter14Fri
15Sat8:016.27:325.41:192.02:094.610:005:02First Quarter15Sat
16Sun8:556.48:565.22:142.53:314.010:015:02First Quarter16Sun
17Mon9:456.910:185.33:122.94:393.010:025:02Waxing Gibbous17Mon
18Tue10:317.511:265.64:093.15:331.710:035:03Waxing Gibbous18Tue
19Wed11:148.15:033.26:190.510:035:03Waxing Gibbous19Wed
20Thu12:246.011:58 AM8.75:543.27:04-0.610:045:03Waxing Gibbous20Thu
21Fri1:146.512:419.36:423.17:47-1.610:055:04Full Moon21Fri
22Sat2:016.81:259.77:293.08:30-2.310:055:04Full Moon22Sat
23Sun2:467.12:109.98:162.89:13-2.610:055:05Full Moon23Sun
24Mon3:317.32:569.89:032.79:57-2.610:065:06Waning Gibbous24Mon
25Tue4:177.33:449.49:522.810:43-2.210:065:06Waning Gibbous25Tue
26Wed5:057.34:358.710:452.911:30-1.410:065:07Waning Gibbous26Wed
27Thu5:557.35:307.811:443.010:065:08Third Quarter27Thu
28Fri6:487.36:336.912:19-0.512:523.110:065:09Third Quarter28Fri
29Sat7:467.37:486.01:120.62:123.010:065:10Third Quarter29Sat
30Sun8:477.49:195.52:111.73:402.410:065:11Third Quarter30Sun
31Mon9:467.610:465.43:162.64:561.610:065:12Waning Crescent31Mon
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