55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

55°
H 55°
L 48°
S
10mph
High tide
8:32 am

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

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 1:41 pm (4.4 ft)
Next high tide : in 1h 19m at 8:32 am (4.8 ft)
Sunset today : 9:22 pm
Sunrise tomorrow : 7:47 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - Sep 1910

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:226.46:05-0.75:533.25:407:32New Moon1Thu
2Fri12:576.86:45-1.06:392.45:427:30New Moon2Fri
3Sat12:308.41:287.17:20-1.07:191.75:447:27New Moon3Sat
4Sun1:118.31:567.37:52-0.97:561.25:467:24New Moon4Sun
5Mon1:488.02:237.48:20-0.48:320.95:477:22Waxing Crescent5Mon
6Tue2:247.62:497.48:470.29:060.85:497:19Waxing Crescent6Tue
7Wed3:007.13:157.49:141.09:421.05:517:17Waxing Crescent7Wed
8Thu3:376.53:437.39:421.910:211.35:537:14Waxing Crescent8Thu
9Fri4:165.94:137.110:112.911:041.85:557:11First Quarter9Fri
10Sat5:025.34:506.910:433.811:582.35:577:09First Quarter10Sat
11Sun6:024.75:376.711:224.75:597:06First Quarter11Sun
12Mon7:454.46:446.51:102.712:225.56:017:04First Quarter12Mon
13Tue9:504.78:096.52:472.61:565.86:037:01Waxing Gibbous13Tue
14Wed10:475.19:266.94:051.93:295.46:056:58Waxing Gibbous14Wed
15Thu11:225.710:267.44:571.14:354.56:076:56Waxing Gibbous15Thu
16Fri11:526.211:177.95:370.25:253.36:096:53Waxing Gibbous16Fri
17Sat12:216.86:13-0.56:102.16:116:50Full Moon17Sat
18Sun12:038.312:517.56:46-0.96:520.96:136:48Full Moon18Sun
19Mon12:478.51:228.07:20-1.07:35-0.26:156:45Full Moon19Mon
20Tue1:318.41:548.57:54-0.88:18-0.96:176:42Waning Gibbous20Tue
21Wed2:168.12:298.88:29-0.19:02-1.26:186:40Waning Gibbous21Wed
22Thu3:037.63:068.99:060.89:51-1.16:206:37Waning Gibbous22Thu
23Fri3:546.93:488.79:461.910:44-0.56:226:34Waning Gibbous23Fri
24Sat4:536.14:358.410:303.111:460.26:246:32Third Quarter24Sat
25Sun6:055.55:337.811:234.36:266:29Third Quarter25Sun
26Mon7:475.26:507.31:040.912:375.16:286:26Third Quarter26Mon
27Tue9:285.58:227.12:401.22:255.36:306:24Waning Crescent27Tue
28Wed10:326.09:447.33:580.94:004.66:326:21Waning Crescent28Wed
29Thu11:176.510:477.54:560.55:023.56:346:19Waning Crescent29Thu
30Fri11:536.911:377.75:410.25:502.56:366:16Waning Crescent30Fri
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 44% 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 Third Quarter (44% 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