55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

41°
H 48°
L 43°
WNW
6mph
Low tide
10:28 am

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

TIDE TIMES for Tuesday, September 29, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 32m at 10:28 am (1.8 ft)
Next high tide : 4:24 pm (9.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 8:36 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:127.54:238.410:190.510:59-0.25:397:34Waning Gibbous1Tue
2Wed4:596.75:028.110:571.611:480.55:417:32Waning Gibbous2Wed
3Thu5:496.05:457.611:362.85:437:29Waning Gibbous3Thu
4Fri6:485.36:337.112:421.412:213.85:457:26Third Quarter4Fri
5Sat8:104.87:366.71:512.11:184.75:477:24Third Quarter5Sat
6Sun9:584.88:556.53:232.42:425.15:487:21Third Quarter6Sun
7Mon11:125.110:136.64:432.24:214.95:507:19Third Quarter7Mon
8Tue11:585.511:136.85:391.75:274.25:527:16Waning Crescent8Tue
9Wed12:316.06:201.36:143.45:547:13Waning Crescent9Wed
10Thu12:017.112:586.46:530.96:532.65:567:11Waning Crescent10Thu
11Fri12:427.41:246.87:220.67:281.85:587:08Waning Crescent11Fri
12Sat1:197.51:507.37:490.48:011.16:007:06New Moon12Sat
13Sun1:557.62:167.68:160.48:340.56:027:03New Moon13Sun
14Mon2:307.52:437.98:450.69:090.16:047:00New Moon14Mon
15Tue3:067.43:128.29:141.09:45-0.16:066:58New Moon15Tue
16Wed3:437.13:438.29:461.510:250.06:086:55Waxing Crescent16Wed
17Thu4:246.64:198.210:202.211:100.26:106:52Waxing Crescent17Thu
18Fri5:116.15:018.010:592.96:126:50Waxing Crescent18Fri
19Sat6:085.65:537.712:020.711:46 AM3.76:146:47First Quarter19Sat
20Sun7:225.26:597.41:061.112:484.36:166:44First Quarter20Sun
21Mon8:565.28:227.22:241.32:134.56:186:42First Quarter21Mon
22Tue10:185.79:497.33:491.13:484.16:206:39First Quarter22Tue
23Wed11:166.411:027.64:570.65:062.96:226:36Waxing Gibbous23Wed
24Thu12:027.15:520.16:081.66:236:34Waxing Gibbous24Thu
25Fri12:047.912:437.86:38-0.27:000.36:256:31Waxing Gibbous25Fri
26Sat12:578.11:218.47:20-0.37:46-0.66:276:28Full Moon26Sat
27Sun1:468.11:578.87:580.08:29-1.26:296:26Full Moon27Sun
28Mon2:318.02:339.08:360.49:10-1.46:316:23Full Moon28Mon
29Tue3:147.73:088.99:121.19:51-1.16:336:21Full Moon29Tue
30Wed3:577.23:448.69:481.910:32-0.56:356:18Waning Gibbous30Wed
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 88% 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 (88% 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