55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

40°
H 47°
L 39°
WSW
6mph
Low tide
9:48 am

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

TIDE TIMES for Monday, October 12, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 4h 18m at 9:48 am (2.2 ft)
Next high tide : 3:41 pm (8.6 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 9:02 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jul 1840

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:439.44:106.89:50-3.09:402.33:559:25New Moon1Wed
2Thu3:338.94:546.910:33-2.510:332.23:569:24Waxing Crescent2Thu
3Fri4:228.25:366.911:15-1.711:272.23:579:24Waxing Crescent3Fri
4Sat5:127.26:186.911:55-0.73:589:23Waxing Crescent4Sat
5Sun6:056.27:016.812:262.212:340.43:599:22First Quarter5Sun
6Mon7:045.37:466.81:302.31:151.64:009:22First Quarter6Mon
7Tue8:184.68:346.82:452.22:012.84:019:21First Quarter7Tue
8Wed9:504.39:266.94:011.82:553.74:029:20First Quarter8Wed
9Thu11:204.410:187.15:081.43:574.44:039:19Waxing Gibbous9Thu
10Fri12:294.76:040.94:594.74:049:18Waxing Gibbous10Fri
11Sat1:175.16:510.45:564.74:069:17Waxing Gibbous11Sat
12Sun1:555.47:31-0.16:464.54:079:16Waxing Gibbous12Sun
13Mon12:417.82:275.78:07-0.67:294.14:089:15Full Moon13Mon
14Tue1:228.12:575.98:39-0.98:083.74:109:14Full Moon14Tue
15Wed1:598.13:276.19:09-1.28:463.34:119:13Full Moon15Wed
16Thu2:368.13:566.29:38-1.49:252.94:139:11Full Moon16Thu
17Fri3:127.94:256.410:08-1.310:042.64:149:10Waning Gibbous17Fri
18Sat3:497.54:546.610:38-1.010:472.34:169:09Waning Gibbous18Sat
19Sun4:297.05:266.911:10-0.411:352.04:179:07Waning Gibbous19Sun
20Mon5:156.36:027.111:450.44:199:06Waning Gibbous20Mon
21Tue6:085.66:437.312:291.812:231.44:209:04Third Quarter21Tue
22Wed7:145.07:337.61:331.61:082.54:229:03Third Quarter22Wed
23Thu8:434.58:347.82:481.32:053.54:249:01Third Quarter23Thu
24Fri10:274.69:438.14:100.73:194.24:258:59Third Quarter24Fri
25Sat11:545.010:528.55:26-0.24:374.34:278:58Waning Crescent25Sat
26Sun12:555.56:29-1.15:514.04:298:56Waning Crescent26Sun
27Mon1:436.17:22-1.96:553.34:318:54Waning Crescent27Mon
28Tue12:549.22:256.68:08-2.47:502.54:338:52New Moon28Tue
29Wed1:469.33:037.08:50-2.68:411.84:348:51New Moon29Wed
30Thu2:359.03:417.39:28-2.49:291.34:368:49New Moon30Thu
31Fri3:218.64:177.410:05-1.910:151.14:388:47Waxing Crescent31Fri
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 5% 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 Waxing Crescent (5% 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