55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

39°
H 42°
L 38°
N
6mph
Low tide
6:57 pm

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

TIDE TIMES for Thursday, October 22, 2026
The tide is currently falling in Chiachi Island (East Side), AK.
Next low tide : in 6h 15m at 6:57 pm (2.4 ft)
Next high tide (tomorrow) : 12:43 am (6.6 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 9:22 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Jun 1822

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:435.26:370.25:583.34:009:08Waxing Gibbous1Sat
2Sun12:007.51:285.47:16-0.36:383.63:599:09Waxing Gibbous2Sun
3Mon12:357.82:085.67:51-0.77:163.73:589:10Full Moon3Mon
4Tue1:108.02:445.78:25-0.97:533.83:579:12Full Moon4Tue
5Wed1:458.13:205.88:59-1.18:293.83:569:13Full Moon5Wed
6Thu2:208.13:555.89:32-1.19:063.93:559:14Full Moon6Thu
7Fri2:558.04:325.710:07-1.19:443.93:549:15Waning Gibbous7Fri
8Sat3:327.85:095.610:43-0.910:263.93:539:16Waning Gibbous8Sat
9Sun4:117.45:485.711:21-0.711:133.83:539:17Waning Gibbous9Sun
10Mon4:556.96:285.812:00-0.33:529:18Waning Gibbous10Mon
11Tue5:466.37:126.012:093.612:420.23:529:19Third Quarter11Tue
12Wed6:475.77:596.41:143.31:290.83:519:20Third Quarter12Wed
13Thu8:025.28:507.02:282.62:211.63:519:21Third Quarter13Thu
14Fri9:284.99:427.63:431.63:192.23:509:22Third Quarter14Fri
15Sat10:515.010:348.24:520.44:192.83:509:22Waning Crescent15Sat
16Sun12:055.45:53-0.85:193.13:509:23Waning Crescent16Sun
17Mon1:085.86:49-1.96:183.23:509:23Waning Crescent17Mon
18Tue12:219.32:026.17:42-2.77:143.13:509:24New Moon18Tue
19Wed1:149.52:526.48:31-3.18:082.93:509:24New Moon19Wed
20Thu2:059.63:396.69:18-3.29:002.73:509:25New Moon20Thu
21Fri2:559.34:266.710:04-2.99:522.63:509:25Waxing Crescent21Fri
22Sat3:458.75:116.710:48-2.310:462.63:509:25Waxing Crescent22Sat
23Sun4:358.05:556.711:31-1.511:422.63:509:26Waxing Crescent23Sun
24Mon5:267.06:396.612:12-0.53:509:26Waxing Crescent24Mon
25Tue6:206.17:246.612:442.712:540.63:519:26First Quarter25Tue
26Wed7:225.28:116.61:532.61:381.73:519:26First Quarter26Wed
27Thu8:394.68:596.73:102.32:262.73:529:26First Quarter27Thu
28Fri10:084.49:486.94:221.83:203.53:529:26First Quarter28Fri
29Sat11:304.510:367.15:231.34:174.13:539:25Waxing Gibbous29Sat
30Sun12:334.86:140.75:144.43:549:25Waxing Gibbous30Sun
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 87% 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 (87% 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