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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 59m at 4:41 am (2.0 ft)
Next high tide : 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 - Jul 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:267.75:476.111:27-0.811:173.45:5611:24Waning Gibbous1Sun
2Mon5:027.46:236.012:00-0.55:5711:23Waning Gibbous2Mon
3Tue5:406.97:006.012:36-0.15:5811:23Waning Gibbous3Tue
4Wed6:236.47:406.112:453.51:140.55:5911:22Third Quarter4Wed
5Thu7:135.88:246.21:393.51:571.16:0011:21Third Quarter5Thu
6Fri8:155.39:156.52:433.22:451.76:0111:21Third Quarter6Fri
7Sat9:324.910:096.93:562.73:422.36:0211:20Third Quarter7Sat
8Sun10:574.911:037.55:081.84:432.76:0311:19Waning Crescent8Sun
9Mon12:155.26:130.65:442.96:0411:18Waning Crescent9Mon
10Tue1:215.67:10-0.66:442.96:0611:17Waning Crescent10Tue
11Wed12:508.72:176.18:02-1.67:412.66:0711:16New Moon11Wed
12Thu1:429.23:076.68:51-2.58:352.36:0811:15New Moon12Thu
13Fri2:339.53:546.99:38-3.19:271.96:1011:14New Moon13Fri
14Sat3:239.64:397.210:23-3.210:181.76:1111:12Waxing Crescent14Sat
15Sun4:129.35:257.311:08-3.011:101.56:1311:11Waxing Crescent15Sun
16Mon5:038.86:117.311:53-2.36:1411:10Waxing Crescent16Mon
17Tue5:558.06:587.312:041.612:37-1.46:1611:09Waxing Crescent17Tue
18Wed6:497.07:477.21:021.81:23-0.36:1711:07First Quarter18Wed
19Thu7:506.18:407.12:072.02:120.96:1911:06First Quarter19Thu
20Fri9:035.39:377.03:232.03:062.06:2111:04First Quarter20Fri
21Sat10:304.910:357.14:451.84:082.96:2211:03Waxing Gibbous21Sat
22Sun11:564.911:317.25:561.35:133.56:2411:01Waxing Gibbous22Sun
23Mon1:055.16:550.86:153.86:2610:59Waxing Gibbous23Mon
24Tue12:217.41:585.57:430.37:083.86:2710:58Waxing Gibbous24Tue
25Wed1:077.62:395.88:24-0.27:543.76:2910:56Full Moon25Wed
26Thu1:487.93:136.09:00-0.58:343.46:3110:54Full Moon26Thu
27Fri2:268.03:446.29:32-0.79:103.16:3310:52Full Moon27Fri
28Sat3:018.14:146.310:01-0.99:462.96:3410:50Full Moon28Sat
29Sun3:368.04:436.410:30-0.910:212.76:3610:49Full Moon29Sun
30Mon4:107.85:136.511:00-0.810:572.56:3810:47Waning Gibbous30Mon
31Tue4:447.55:436.611:30-0.511:362.56:4010:45Waning Gibbous31Tue
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 7:28 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