55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

47°
H -°
L 44°
NNE
5mph
Low tide
3:13 am

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 29m at 3:13 am (2.7 ft)
Next high tide : 10:21 am (4.5 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 8:16 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:087.35:335.811:09-0.411:043.73:589:10Waxing Crescent1Wed
2Thu4:476.86:135.711:460.211:533.83:579:11Waxing Crescent2Thu
3Fri5:326.26:555.712:250.73:569:12First Quarter3Fri
4Sat6:235.67:415.912:503.81:081.33:559:14First Quarter4Sat
5Sun7:265.18:306.11:573.51:571.93:549:15First Quarter5Sun
6Mon8:444.89:206.63:123.02:512.43:549:16First Quarter6Mon
7Tue10:054.710:097.14:212.03:482.83:539:17Waxing Gibbous7Tue
8Wed11:175.010:577.75:191.04:443.03:529:18Waxing Gibbous8Wed
9Thu12:195.46:11-0.25:383.13:529:19Waxing Gibbous9Thu
10Fri1:125.86:59-1.26:313.03:519:20Full Moon10Fri
11Sat12:328.82:016.27:45-2.17:222.73:519:21Full Moon11Sat
12Sun1:209.22:476.58:30-2.88:122.53:519:21Full Moon12Sun
13Mon2:089.43:326.79:15-3.19:022.23:509:22Waning Gibbous13Mon
14Tue2:569.34:186.99:59-3.19:532.13:509:23Waning Gibbous14Tue
15Wed3:468.85:057.010:44-2.610:482.03:509:23Waning Gibbous15Wed
16Thu4:388.25:537.011:30-1.911:472.03:509:24Waning Gibbous16Thu
17Fri5:347.36:437.112:17-0.93:509:24Third Quarter17Fri
18Sat6:366.37:357.212:532.01:060.23:509:25Third Quarter18Sat
19Sun7:485.58:317.32:091.92:001.33:509:25Third Quarter19Sun
20Mon9:145.09:287.43:311.52:592.33:509:25Waning Crescent20Mon
21Tue10:414.910:237.64:450.84:023.03:509:26Waning Crescent21Tue
22Wed11:555.111:147.85:460.25:033.43:519:26Waning Crescent22Wed
23Thu12:545.46:38-0.35:593.63:519:26Waning Crescent23Thu
24Fri12:018.01:415.67:22-0.76:483.63:519:26New Moon24Fri
25Sat12:448.12:205.98:01-1.07:323.53:529:26New Moon25Sat
26Sun1:248.22:546.08:36-1.28:113.43:529:26New Moon26Sun
27Mon2:018.13:266.19:08-1.28:483.23:539:25New Moon27Mon
28Tue2:378.03:576.29:39-1.19:253.13:549:25Waxing Crescent28Tue
29Wed3:127.74:286.210:09-0.910:033.03:549:25Waxing Crescent29Wed
30Thu3:487.44:586.210:39-0.610:432.93:559:25Waxing Crescent30Thu
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 neap phase. Tonight's moon is 59% 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 minimum.

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 First Quarter (59% illuminated). This places Chiachi Island (East Side), AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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