55.8433’ N, 159.1050’ W

Chiachi Island (East Side), AK

48°
H 48°
L 43°
WNW
10mph
High tide
4:24 pm

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

TIDE TIMES for Tuesday, September 29, 2026
The tide is currently rising in Chiachi Island (East Side), AK.
Next low tide : 11:15 pm (-1.1 ft)
Next high tide : in 1h 55m at 4:24 pm (9.0 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 8:36 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #9459085
Common Questions About Tides

Chiachi Island (East Side), AK Tides - May 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:067.412:506.36:510.06:421.64:558:12Waxing Gibbous1Fri
2Sat12:428.11:366.67:31-1.17:221.64:528:14Waxing Gibbous2Sat
3Sun1:208.62:216.88:13-1.98:031.74:508:16Full Moon3Sun
4Mon1:589.03:066.88:55-2.48:441.94:488:18Full Moon4Mon
5Tue2:399.23:526.79:38-2.69:282.14:468:20Full Moon5Tue
6Wed3:239.14:426.510:25-2.410:152.44:448:22Waning Gibbous6Wed
7Thu4:108.75:356.311:14-1.911:082.84:418:24Waning Gibbous7Thu
8Fri5:038.16:336.112:07-1.24:398:26Waning Gibbous8Fri
9Sat6:027.37:376.112:093.21:05-0.44:378:28Third Quarter9Sat
10Sun7:136.68:446.31:243.32:090.34:358:30Third Quarter10Sun
11Mon8:366.09:466.72:542.93:170.94:338:32Third Quarter11Mon
12Tue10:015.710:397.14:192.14:191.34:318:34Third Quarter12Tue
13Wed11:155.811:257.55:251.05:141.64:298:36Waning Crescent13Wed
14Thu12:165.96:180.06:021.94:278:38Waning Crescent14Thu
15Fri12:077.91:086.17:04-0.76:462.14:258:39Waning Crescent15Fri
16Sat12:458.21:536.27:45-1.27:262.44:248:41New Moon16Sat
17Sun1:218.32:346.38:22-1.48:032.64:228:43New Moon17Sun
18Mon1:568.33:126.38:57-1.48:392.94:208:45New Moon18Mon
19Tue2:308.23:486.19:31-1.39:143.14:188:47New Moon19Tue
20Wed3:048.04:256.010:05-1.09:503.34:178:49Waxing Crescent20Wed
21Thu3:397.75:035.810:41-0.610:293.64:158:50Waxing Crescent21Thu
22Fri4:167.35:425.611:18-0.111:123.84:138:52Waxing Crescent22Fri
23Sat4:576.76:255.511:580.44:128:54Waxing Crescent23Sat
24Sun5:436.27:135.512:024.012:410.94:108:55First Quarter24Sun
25Mon6:385.68:045.71:034.01:291.44:098:57First Quarter25Mon
26Tue7:475.28:576.02:163.72:231.94:078:59First Quarter26Tue
27Wed9:074.99:466.53:333.03:192.24:069:00First Quarter27Wed
28Thu10:245.010:337.14:392.04:152.44:059:02Waxing Gibbous28Thu
29Fri11:315.311:187.85:340.85:082.54:039:03Waxing Gibbous29Fri
30Sat12:295.76:24-0.46:002.54:029:05Waxing Gibbous30Sat
31Sun12:038.41:226.17:11-1.56:502.54:019:06Waxing Gibbous31Sun
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 88% 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 Waning Gibbous (88% 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