55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

55°
H -°
L 51°
S
17mph
High tide
5:35 am

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

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:23 am (2.4 ft)
Next high tide : in 3h 12m at 5:35 am (6.5 ft)
Sunset today : 8:53 pm
Sunrise tomorrow : 8:09 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1887

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:098.02:056.97:59-0.47:562.15:417:31Full Moon1Thu
2Fri1:478.02:337.18:29-0.48:301.65:437:29Full Moon2Fri
3Sat2:227.92:597.28:57-0.29:021.35:457:26Full Moon3Sat
4Sun2:567.73:267.39:240.19:351.25:477:23Waning Gibbous4Sun
5Mon3:297.43:537.39:520.610:091.25:497:21Waning Gibbous5Mon
6Tue4:037.04:217.310:201.210:451.45:517:18Waning Gibbous6Tue
7Wed4:396.54:527.110:511.911:251.75:537:16Waning Gibbous7Wed
8Thu5:195.95:277.011:232.75:557:13Third Quarter8Thu
9Fri6:065.46:106.812:112.012:023.55:577:10Third Quarter9Fri
10Sat7:095.07:046.71:082.412:514.35:597:08Third Quarter10Sat
11Sun8:414.88:156.72:202.52:024.86:017:05Third Quarter11Sun
12Mon10:165.09:346.93:432.13:274.86:027:02Waning Crescent12Mon
13Tue11:205.610:437.44:541.44:444.16:047:00Waning Crescent13Tue
14Wed12:066.25:500.55:463.16:066:57Waning Crescent14Wed
15Thu12:476.96:36-0.46:391.96:086:54Waning Crescent15Thu
16Fri12:358.51:257.67:19-1.07:280.76:106:52New Moon16Fri
17Sat1:258.82:028.27:59-1.38:14-0.36:126:49New Moon17Sat
18Sun2:138.92:408.78:39-1.39:00-1.06:146:47New Moon18Sun
19Mon3:008.73:208.99:18-0.99:47-1.36:166:44Waxing Crescent19Mon
20Tue3:498.24:008.99:59-0.110:36-1.26:186:41Waxing Crescent20Tue
21Wed4:407.64:448.710:411.011:28-0.66:206:39Waxing Crescent21Wed
22Thu5:356.85:328.311:272.16:226:36First Quarter22Thu
23Fri6:396.16:267.712:260.212:193.36:246:33First Quarter23Fri
24Sat8:005.67:347.21:361.01:254.26:266:31First Quarter24Sat
25Sun9:365.68:586.83:021.52:574.76:286:28First Quarter25Sun
26Mon10:535.910:186.94:251.44:324.46:306:25Waxing Gibbous26Mon
27Tue11:476.311:237.15:281.25:373.76:326:23Waxing Gibbous27Tue
28Wed12:286.76:160.96:262.96:346:20Waxing Gibbous28Wed
29Thu12:137.31:007.06:550.77:062.16:366:17Waxing Gibbous29Thu
30Fri12:557.41:287.37:270.67:401.56:386:15Full Moon30Fri
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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 (23% illuminated). This places Chiachi Island (East Side), AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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