55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

42°
H -°
L 39°
NNE
6mph
High tide
12:25 am

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

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 7:26 am (0.9 ft)
Next high tide : in 3m at 12:25 am (6.9 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 8:24 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:215.96:16-1.05:552.13:599:09Waning Crescent1Tue
2Wed1:206.27:08-2.26:452.43:589:11New Moon2Wed
3Thu12:459.32:146.47:57-3.07:352.63:579:12New Moon3Thu
4Fri1:339.63:066.58:46-3.38:242.83:569:13New Moon4Fri
5Sat2:209.63:576.49:34-3.29:143.03:559:14Waxing Crescent5Sat
6Sun3:099.34:486.310:22-2.810:053.23:549:15Waxing Crescent6Sun
7Mon4:008.85:416.211:12-2.111:013.43:539:16Waxing Crescent7Mon
8Tue4:528.06:346.112:02-1.33:539:17Waxing Crescent8Tue
9Wed5:487.17:286.112:033.612:52-0.43:529:18First Quarter9Wed
10Thu6:496.18:226.11:143.61:430.63:529:19First Quarter10Thu
11Fri8:005.49:136.32:383.32:361.43:519:20First Quarter11Fri
12Sat9:224.99:586.63:572.63:292.13:519:21Waxing Gibbous12Sat
13Sun10:404.710:386.95:001.84:182.83:509:22Waxing Gibbous13Sun
14Mon11:484.811:157.25:511.05:043.33:509:22Waxing Gibbous14Mon
15Tue12:435.16:350.35:483.73:509:23Waxing Gibbous15Tue
16Wed1:295.37:14-0.26:313.93:509:24Waxing Gibbous16Wed
17Thu12:287.82:095.57:50-0.67:114.03:509:24Full Moon17Thu
18Fri1:058.02:465.78:24-0.97:504.03:509:25Full Moon18Fri
19Sat1:428.13:225.78:59-1.18:274.03:509:25Full Moon19Sat
20Sun2:188.23:585.89:33-1.29:053.93:509:25Full Moon20Sun
21Mon2:558.14:345.710:08-1.39:453.93:509:26Waning Gibbous21Mon
22Tue3:337.95:115.810:44-1.210:283.83:509:26Waning Gibbous22Tue
23Wed4:137.55:495.811:22-1.011:183.63:519:26Waning Gibbous23Wed
24Thu4:597.06:286.012:01-0.53:519:26Third Quarter24Thu
25Fri5:516.37:116.312:143.412:430.13:529:26Third Quarter25Fri
26Sat6:535.77:586.71:203.01:290.93:529:26Third Quarter26Sat
27Sun8:105.18:497.22:342.32:221.73:539:26Third Quarter27Sun
28Mon9:384.99:437.83:501.23:202.53:539:25Waning Crescent28Mon
29Tue11:045.010:378.45:000.14:223.13:549:25Waning Crescent29Tue
30Wed12:195.36:02-1.05:243.43:559:25Waning Crescent30Wed
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 91% 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 Gibbous (91% 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