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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 9:12 am (-2.2 ft)
Next high tide : in 2h 29m at 2:09 am (9.1 ft)
Sunset today : 10:21 pm
Sunrise tomorrow : 7:01 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:326.110:558.55:14-0.54:573.25:417:30Waxing Gibbous1Mon
2Tue12:106.86:00-1.35:551.95:437:28Full Moon2Tue
3Wed12:467.66:41-1.76:460.55:457:25Full Moon3Wed
4Thu12:428.91:228.27:19-1.77:33-0.55:477:22Full Moon4Thu
5Fri1:308.71:578.67:55-1.38:19-1.15:497:20Waning Gibbous5Fri
6Sat2:178.22:338.88:31-0.59:04-1.25:517:17Waning Gibbous6Sat
7Sun3:047.53:098.89:070.69:51-0.85:537:14Waning Gibbous7Sun
8Mon3:536.73:478.59:431.810:40-0.15:557:12Waning Gibbous8Mon
9Tue4:455.94:298.010:223.011:350.95:577:09Third Quarter9Tue
10Wed5:475.25:177.411:054.25:597:07Third Quarter10Wed
11Thu7:204.86:206.912:461.812:015.26:017:04Third Quarter11Thu
12Fri9:214.87:466.52:242.21:335.76:037:01Third Quarter12Fri
13Sat10:315.29:126.63:492.03:285.46:056:59Waning Crescent13Sat
14Sun11:125.610:166.94:461.54:354.66:076:56Waning Crescent14Sun
15Mon11:426.011:047.15:271.15:213.76:086:53Waning Crescent15Mon
16Tue12:076.45:590.75:582.86:106:51Waning Crescent16Tue
17Wed12:296.86:260.56:321.96:126:48New Moon17Wed
18Thu12:217.412:517.26:510.47:031.16:146:45New Moon18Thu
19Fri12:557.41:137.67:150.67:340.56:166:43New Moon19Fri
20Sat1:297.31:377.97:400.98:060.16:186:40New Moon20Sat
21Sun2:037.12:028.18:061.48:39-0.16:206:38Waxing Crescent21Sun
22Mon2:386.82:298.28:342.09:160.06:226:35Waxing Crescent22Mon
23Tue3:166.43:008.29:042.89:580.36:246:32Waxing Crescent23Tue
24Wed4:005.93:388.19:373.510:470.86:266:30Waxing Crescent24Wed
25Thu4:545.34:247.810:164.311:491.36:286:27First Quarter25Thu
26Fri6:094.95:267.411:125.06:306:24First Quarter26Fri
27Sat7:574.96:507.11:091.512:385.46:326:22First Quarter27Sat
28Sun9:235.38:257.22:381.32:245.06:346:19Waxing Gibbous28Sun
29Mon10:166.09:447.53:490.73:513.86:366:16Waxing Gibbous29Mon
30Tue10:576.810:487.84:430.14:552.26:386:14Waxing Gibbous30Tue
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 5:40 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places Chiachi Island (East Side), AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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