55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

46°
H 47°
L 40°
SSW
20mph
Low tide
11:34 am

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

TIDE TIMES for Friday, October 30, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 3h 26m at 11:34 am (4.1 ft)
Next high tide : 5:32 pm (8.8 ft)
Sunset today : 7:00 pm
Sunrise tomorrow : 9:39 am
Moon phase : Waning Gibbous (73% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1810

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:087.63:327.69:310.29:500.85:387:35New Moon1Sat
2Sun3:437.34:037.710:010.610:290.85:407:32Waxing Crescent2Sun
3Mon4:226.94:377.710:351.311:120.95:427:29Waxing Crescent3Mon
4Tue5:066.45:167.611:112.05:447:27Waxing Crescent4Tue
5Wed5:585.86:037.512:021.211:55 AM2.85:467:24First Quarter5Wed
6Thu7:045.37:037.31:021.412:503.65:487:22First Quarter6Thu
7Fri8:325.18:187.32:171.62:034.15:507:19First Quarter7Fri
8Sat10:055.49:397.53:411.23:294.05:527:16First Quarter8Sat
9Sun11:146.010:527.94:550.64:503.35:547:14Waxing Gibbous9Sun
10Mon12:076.75:54-0.25:562.25:567:11Waxing Gibbous10Mon
11Tue12:517.46:44-0.86:521.15:587:09Waxing Gibbous11Tue
12Wed12:508.61:328.07:28-1.17:420.16:007:06Full Moon12Wed
13Thu1:408.72:118.48:09-1.28:28-0.66:027:03Full Moon13Thu
14Fri2:278.62:498.78:48-0.99:12-0.96:047:01Full Moon14Fri
15Sat3:128.33:268.79:26-0.29:55-0.86:066:58Full Moon15Sat
16Sun3:577.74:048.510:030.610:39-0.46:086:55Waning Gibbous16Sun
17Mon4:427.14:438.110:411.611:240.36:096:53Waning Gibbous17Mon
18Tue5:306.45:237.611:212.76:116:50Waning Gibbous18Tue
19Wed6:245.76:107.112:141.212:053.76:136:47Third Quarter19Wed
20Thu7:325.27:076.61:132.01:004.56:156:45Third Quarter20Thu
21Fri9:075.18:226.32:312.52:185.06:176:42Third Quarter21Fri
22Sat10:315.39:446.33:592.53:574.96:196:40Third Quarter22Sat
23Sun11:255.710:506.55:042.25:084.26:216:37Waning Crescent23Sun
24Mon12:026.15:501.85:573.46:236:34Waning Crescent24Mon
25Tue12:336.56:271.46:372.66:256:32Waning Crescent25Tue
26Wed12:257.21:017.06:591.07:121.76:276:29Waning Crescent26Wed
27Thu1:047.41:287.47:280.87:461.06:296:26New Moon27Thu
28Fri1:417.61:567.87:580.78:190.36:316:24New Moon28Fri
29Sat2:167.62:258.18:280.88:54-0.16:336:21New Moon29Sat
30Sun2:537.52:558.38:591.19:30-0.46:356:18New Moon30Sun
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 transitional phase. Tonight's moon is 73% 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 Waning Gibbous (73% 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