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 (tomorrow) : 5:49 am (1.3 ft)
Next high tide : in 5h 30m at 10:28 pm (6.9 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 - Jul 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:465.49:436.63:152.83:071.65:5611:24First Quarter1Sat
2Sun10:074.910:376.74:362.54:052.45:5711:23First Quarter2Sun
3Mon11:294.811:266.95:461.95:043.05:5811:23Waxing Gibbous3Mon
4Tue12:394.96:421.35:593.45:5911:22Waxing Gibbous4Tue
5Wed12:117.21:355.27:290.66:493.56:0011:21Waxing Gibbous5Wed
6Thu12:537.52:195.58:100.17:343.56:0111:20Waxing Gibbous6Thu
7Fri1:327.72:575.88:45-0.48:153.46:0211:20Full Moon7Fri
8Sat2:108.03:326.09:18-0.88:533.26:0411:19Full Moon8Sat
9Sun2:468.14:056.29:50-1.09:303.16:0511:18Full Moon9Sun
10Mon3:218.14:376.310:21-1.210:072.96:0611:17Full Moon10Mon
11Tue3:568.05:106.410:53-1.210:462.86:0711:16Waning Gibbous11Tue
12Wed4:337.85:446.411:27-1.111:272.86:0911:15Waning Gibbous12Wed
13Thu5:117.46:206.512:02-0.76:1011:13Waning Gibbous13Thu
14Fri5:546.96:596.612:122.712:40-0.26:1211:12Waning Gibbous14Fri
15Sat6:436.47:436.81:032.61:220.46:1311:11Third Quarter15Sat
16Sun7:425.88:347.02:032.52:091.26:1511:10Third Quarter16Sun
17Mon8:555.29:317.33:142.13:062.06:1611:08Third Quarter17Mon
18Tue10:235.010:337.74:311.54:112.66:1811:07Waning Crescent18Tue
19Wed11:495.211:348.25:450.55:192.96:1911:05Waning Crescent19Wed
20Thu1:025.76:50-0.56:252.86:2111:04Waning Crescent20Thu
21Fri12:338.72:016.27:47-1.57:262.56:2311:02New Moon21Fri
22Sat1:299.12:516.78:37-2.38:232.16:2411:01New Moon22Sat
23Sun2:219.43:377.09:24-2.79:151.76:2610:59New Moon23Sun
24Mon3:119.44:217.310:07-2.810:041.56:2810:57New Moon24Mon
25Tue3:589.15:037.410:49-2.510:521.46:2910:55Waxing Crescent25Tue
26Wed4:458.65:447.411:29-1.811:401.56:3110:54Waxing Crescent26Wed
27Thu5:317.86:267.212:09-0.96:3310:52Waxing Crescent27Thu
28Fri6:187.07:077.012:301.712:480.16:3510:50First Quarter28Fri
29Sat7:086.17:516.81:242.11:291.26:3710:48First Quarter29Sat
30Sun8:055.48:396.72:242.42:132.36:3810:46First Quarter30Sun
31Mon9:204.89:356.63:382.53:053.26:4010:44First Quarter31Mon
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 2:08 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 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