55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

46°
H 47°
L 44°
ENE
3mph
High tide
1:36 pm

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 : 7:25 pm (3.1 ft)
Next high tide : in 42m at 1:36 pm (6.3 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 - Jul 1874

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:318.74:076.19:44-2.19:233.43:569:24Waning Gibbous1Wed
2Thu3:148.54:466.210:23-2.110:103.13:579:24Waning Gibbous2Thu
3Fri3:598.25:276.411:03-1.811:022.93:579:23Waning Gibbous3Fri
4Sat4:487.66:096.611:45-1.33:589:23Waning Gibbous4Sat
5Sun5:426.86:546.812:002.612:28-0.53:599:22Third Quarter5Sun
6Mon6:446.07:437.11:062.31:150.54:019:21Third Quarter6Mon
7Tue8:005.38:367.52:211.82:071.64:029:20Third Quarter7Tue
8Wed9:304.99:327.83:411.13:062.64:039:19Waning Crescent8Wed
9Thu11:004.910:298.24:540.24:103.34:049:18Waning Crescent9Thu
10Fri12:175.25:58-0.75:153.74:059:17Waning Crescent10Fri
11Sat1:175.66:54-1.36:163.84:079:16New Moon11Sat
12Sun12:198.72:076.07:44-1.87:123.74:089:15New Moon12Sun
13Mon1:098.92:506.28:28-2.08:033.44:099:14New Moon13Mon
14Tue1:568.83:306.49:09-2.08:483.24:119:13New Moon14Tue
15Wed2:408.64:076.49:47-1.89:313.04:129:12Waxing Crescent15Wed
16Thu3:218.24:426.410:22-1.410:142.94:149:10Waxing Crescent16Thu
17Fri4:017.75:156.310:55-0.910:572.94:159:09Waxing Crescent17Fri
18Sat4:417.05:476.311:27-0.111:432.94:179:08Waxing Crescent18Sat
19Sun5:226.36:206.311:590.74:199:06First Quarter19Sun
20Mon6:085.56:566.312:332.912:321.64:209:05First Quarter20Mon
21Tue7:034.97:376.41:302.91:092.64:229:03First Quarter21Tue
22Wed8:164.48:266.62:402.81:543.54:249:02First Quarter22Wed
23Thu9:534.29:216.83:582.42:524.34:259:00Waxing Gibbous23Thu
24Fri11:264.410:187.15:071.73:594.74:278:58Waxing Gibbous24Fri
25Sat12:314.86:031.05:044.84:298:56Waxing Gibbous25Sat
26Sun1:165.36:500.16:034.54:308:55Waxing Gibbous26Sun
27Mon12:048.01:545.77:32-0.76:564.14:328:53Full Moon27Mon
28Tue12:528.52:296.18:10-1.57:433.44:348:51Full Moon28Tue
29Wed1:388.83:036.48:47-2.08:282.84:368:49Full Moon29Wed
30Thu2:228.93:386.79:24-2.39:142.14:388:47Waning Gibbous30Thu
31Fri3:068.74:137.110:00-2.210:011.64:408:45Waning Gibbous31Fri
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