55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

50°
H 55°
L 49°
NW
0mph
Low tide
10:29 am

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

TIDE TIMES for Sunday, August 30, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 20m at 10:29 am (-0.2 ft)
Next high tide : 4:30 pm (7.8 ft)
Sunset today : 9:35 pm
Sunrise tomorrow : 7:38 am
Moon phase : Waning Gibbous (92% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:315.79:577.24:131.14:013.95:407:32Waxing Gibbous1Fri
2Sat11:226.110:537.45:080.75:013.45:427:29Waxing Gibbous2Sat
3Sun12:016.45:520.45:482.85:447:27Waxing Gibbous3Sun
4Mon12:336.86:280.16:272.25:467:24Full Moon4Mon
5Tue12:187.81:017.06:590.07:011.75:487:22Full Moon5Tue
6Wed12:537.81:277.27:270.17:331.35:507:19Full Moon6Wed
7Thu1:277.71:537.47:530.28:041.05:527:16Full Moon7Thu
8Fri1:597.52:197.58:200.68:370.95:537:14Waning Gibbous8Fri
9Sat2:327.22:477.58:481.09:110.95:557:11Waning Gibbous9Sat
10Sun3:066.83:167.49:171.69:481.25:577:09Waning Gibbous10Sun
11Mon3:436.33:497.39:492.310:291.55:597:06Waning Gibbous11Mon
12Tue4:245.84:277.210:243.011:181.96:017:03Third Quarter12Tue
13Wed5:165.45:147.011:063.86:037:01Third Quarter13Wed
14Thu6:265.06:166.812:192.212:044.46:056:58Third Quarter14Thu
15Fri7:595.07:336.81:342.21:234.66:076:55Third Quarter15Fri
16Sat9:225.48:527.12:541.72:494.36:096:53Waning Crescent16Sat
17Sun10:206.010:007.64:011.04:023.36:116:50Waning Crescent17Sun
18Mon11:076.810:598.14:550.25:022.16:136:47Waning Crescent18Mon
19Tue11:487.511:528.55:41-0.55:550.86:156:45New Moon19Tue
20Wed12:288.26:25-0.96:43-0.36:176:42New Moon20Wed
21Thu12:428.71:078.87:06-1.07:30-1.26:196:39New Moon21Thu
22Fri1:318.71:479.17:47-0.88:16-1.66:216:37Waxing Crescent22Fri
23Sat2:198.42:289.28:27-0.29:03-1.66:236:34Waxing Crescent23Sat
24Sun3:087.93:109.09:090.79:52-1.16:256:32Waxing Crescent24Sun
25Mon3:597.23:558.69:531.710:45-0.36:266:29Waxing Crescent25Mon
26Tue4:566.54:458.010:412.811:450.66:286:26First Quarter26Tue
27Wed6:035.95:447.311:383.86:306:24First Quarter27Wed
28Thu7:285.66:586.812:581.412:534.56:326:21First Quarter28Thu
29Fri8:575.78:236.52:251.82:344.66:346:18Waxing Gibbous29Fri
30Sat10:026.09:386.63:391.83:544.06:366:16Waxing Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9459085)

Common Questions About Chiachi Island (East Side), AK Tides

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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 92% 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 Waning Gibbous (92% 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