55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

50°
H -°
L 41°
WNW
17mph
Low tide
10:32 pm

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

TIDE TIMES for Monday, September 28, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 5h 20m at 10:32 pm (-1.2 ft)
Next high tide (tomorrow) : 4:35 am (7.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 8:34 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Aug 1865

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:284.49:136.83:332.62:454.14:408:45First Quarter1Tue
2Wed10:554.610:157.14:482.03:574.24:428:43Waxing Gibbous2Wed
3Thu11:575.111:127.65:451.15:044.04:448:41Waxing Gibbous3Thu
4Fri12:435.66:310.26:023.44:458:39Waxing Gibbous4Fri
5Sat12:038.01:226.27:12-0.66:532.74:478:37Waxing Gibbous5Sat
6Sun12:518.51:596.77:50-1.47:411.94:498:35Full Moon6Sun
7Mon1:378.72:357.28:27-1.88:261.14:518:33Full Moon7Mon
8Tue2:218.83:127.79:04-2.09:120.54:538:31Full Moon8Tue
9Wed3:068.63:508.09:42-1.89:590.24:558:28Waning Gibbous9Wed
10Thu3:538.24:308.210:21-1.210:480.14:578:26Waning Gibbous10Thu
11Fri4:427.55:138.211:02-0.311:420.34:598:24Waning Gibbous11Fri
12Sat5:366.76:018.111:470.85:018:22Waning Gibbous12Sat
13Sun6:385.96:557.812:430.712:361.95:038:19Third Quarter13Sun
14Mon7:555.37:597.61:541.11:363.05:058:17Third Quarter14Mon
15Tue9:325.19:137.53:201.12:513.75:078:15Third Quarter15Tue
16Wed11:005.310:267.64:420.84:163.85:098:12Waning Crescent16Wed
17Thu12:045.85:470.35:303.55:118:10Waning Crescent17Thu
18Fri12:526.26:39-0.26:283.05:128:08Waning Crescent18Fri
19Sat12:228.01:316.67:21-0.57:152.45:148:05Waning Crescent19Sat
20Sun1:078.12:056.97:58-0.77:561.95:168:03New Moon20Sun
21Mon1:488.12:357.18:30-0.68:321.55:188:00New Moon21Mon
22Tue2:248.03:037.38:59-0.49:071.25:207:58New Moon22Tue
23Wed2:597.73:307.39:27-0.19:401.15:227:56New Moon23Wed
24Thu3:337.43:587.39:550.410:151.25:247:53Waxing Crescent24Thu
25Fri4:076.94:277.310:241.110:521.45:267:51Waxing Crescent25Fri
26Sat4:446.44:587.210:541.811:331.85:287:48Waxing Crescent26Sat
27Sun5:235.85:347.011:272.65:307:46Waxing Crescent27Sun
28Mon6:115.36:176.812:202.212:053.45:327:43First Quarter28Mon
29Tue7:144.87:126.61:172.512:544.15:347:41First Quarter29Tue
30Wed8:444.68:236.62:322.62:034.65:367:38First Quarter30Wed
31Thu10:184.89:386.93:552.23:264.65:387:35First Quarter31Thu
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 94% 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 (94% 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